RF schema's (HA5KHC/VA3IUL)
Bibliothèque complète de schémas RF homebrew · Volledige bibliotheek van RF homebrew schema's · Complete homebrew RF schematics library
📚 Sources de cette compilation :
-
HA5KHC – Club station de Budapest, Hongrie.
Curation et organisation par catégories.
konstruktor.ha5khc.hu/linkgyujtemeny/ -
VA3IUL – Iulian Rosu, source primaire de la quasi-totalité des schémas.
qsl.net/va3iul/
ON4RSX présente ici une version mise en page de cette collection pour faciliter sa consultation. Tous les schémas restent la propriété intellectuelle de leurs auteurs respectifs. Les liens pointent directement vers les fichiers d'origine sur les serveurs de VA3IUL.
Transceivers · Émetteurs-récepteurs · Transceivers (119)
- 80m 5W CW Transceiver
- 7 MHz QRP Transceiver - DL5NEG
- 27 MHz R/C Transceiver
- 49 MHz Walkie-Talkie
- 432 MHz Data Transceiver
- QRP SSB Transceiver
- QRP Transceiver 40m/20m - IK3OIL
- Short Range Wireless Data Communication
- Transceiver QRP 20m SSB
- HF Transceiver CW SSB NorCalSierra
- Transceiver QRP 40m - F6BQU
- Transceiver SSB with 9MHz-IF
- 20m Transceiver BITX - VU2ESE
- 40m - 20m Dual-band Transceiver - VU2ESE
- 10 GHz I/Q Transceiver - S53MV
- 7 MHz Transceiver - DK6SX
- MIZUHO MX21S QRP Transceiver
- HF SSB QRP Transceiver - YD1JJJ
- 40m CW QRP Transceiver - NT7S
- Long Range FM Cordless Telephone
- 3.5 MHz 5W CW Transceiver - JF1OZL
- 14 MHz 10W SSB Transceiver - JF1OZL
- 21 MHz QRP SSB Transceiver - JF1OZL
- 40m SSB Transceiver Santerre - F6FEO
- 10MHz 1W Transceiver NE-QRP
- 20m CW Transceiver - 7N3WVM
- 20m QRP Transceiver - PA2OHH
- 40m SSB Transceiver PQDS - XQ5FOD
- 40m CW Transceiver - JG1EAD
- 20m SSB Transceiver - Taurus - SP5DDJ
- 80m CW Transceiver - Aquarius - SP5DDJ
- VHF FM Transceiver - DF5FC
- 10m Transceiver MiniPIG - W8DIZ
- 80m CW Transceiver - Libra - SP5DDJ
- 30m CW Transceiver - 7N3WVM
- 50 MHz SSB/CW Transceiver - 7N3WVM
- 160m SSB Transceiver - G3TSO
- 20m CW Transceiver - K8IQY
- 30m PSK31 Transceiver - NN1G
- 30m CW Transceiver - K1SWL
- 40m CW Transceiver - K8IQY
- 50 MHz SSB Transceiver - KD1JV
- 75m QRP SSB Transceiver - WA7JHZ
- 80m All-BC547 SSB Transceiver - VK3AJG
- PSK31 Transceiver - KD1JV
- CB AM Receiver-Transmitter
- 10 MHz QRP Transceiver - PA2OHH
- 40m CW Transceiver - PY2MG
- 40m CW/DSB Transceiver - PY2MG
- 40m SSB Transceiver - PY2MG
- 80m Unichip Transceiver - G0UPL
- HF Dual-Conversion Transceiver - YO3DAC/YO3BAL
- 20m CW Transceiver Norcal
- 30m CW Transceiver Norcal
- 40m CW Transceiver Norcal
- 20m or 30m Image-Rejection Transceiver Norcal-2030
- 10m CW Transceiver K8IQY
- 75m DSB Transceiver - KE7HR
- 14 MHz PSK31 Transceiver - K1SWL
- 80m DSB Transceiver - PA3ANG
- 430 MHz SSB Transceiver - JF1OZL
- 27 MHz Walkie-Talkie
- 40m-20m CW Transceiver - LZ3AI
- 80m All-2N2222 CW Transceiver - OK2BEU
- 144 MHz QRP CW Transceiver
- 144 MHz Simple Walkie-Talkie
- 144 MHz AM Walkie-Talkie - YO3AVE
- 2m PLL FM Transceiver - DC1YB
- 20m CW Transceiver - DC1YB
- 144 MHz 2-channels Walkie-Talkie - DC1YB
- 7 MHz CW Transceiver - W7EL
- 20m Bell-Ringer CW Transceiver - AA1TJ
- 50 MHz FM Transceiver for Audio and Data
- 80m CW QRP Transceiver
- 10m SSB Transceiver
- 20m SSB 50W Transceiver - YO3AVE
- 10.1 MHz 2W Transceiver - DJ1ZB
- 15m QRP 1.5W Transceiver - W9SCH
- 20m 1.5V Low Supply Voltage Transceiver - DL2AVH
- 20m Superheterodyne Transceiver - NN1G
- 20m Two-Fer Transceiver - WU2J
- 30m "38-Special" Superhet Transceiver - AC6AN
- 40m 1.5W Rock-Steady Transceiver - K8IF
- 40m DB-25 QRP Transceiver - WA5JAY
- 40m "EverReady" Transceiver - WA6AHL
- 40m "Forty-9er" Transceiver - N6KR
- 40m Handbook Transceiver - WB6TMH
- 40m QRP Transceiver - N4HCJ
- 40m QRP Transceiver - W3TS
- 80m-40m-30m Superhet Transceiver - NN1G
- 80m CW-QSK Transceiver - NN1G
- 80m One-Transistor CW Transceiver - WB3EEL
- 80m SMD Transceiver - W1CFI
- HF QRP 1.5W Transceiver - KN1H
- HF "The-Phoenix" QRP Transceiver - W3TS
- 30m QRP Transceiver - K8IF
- 1.8 MHz QRP Transceiver - G3TXQ
- 80m/160m Transceiver - G4ENA
- 20m 5W SSB/CW Transceiver MFJ-9420
- 40m / 20m RockMite CW Transceiver - K1SWL
- 1.8MHz Transceiver - G3TXQ
- 20m Transceiver - G4ENA
- 2m AM Walkie-Talkie Fredbox - G3XBM
- 10m CW Transceiver - G3XBM
- 27 MHz 3xBJT's Walkie-Talkie
- 27 MHz 4xBJT's Walkie-Talkie
- 27 MHz AM 6W Transceiver
- 27 MHz Saturn Walkie-Talkie
- 80m QRP Transceiver - YC3LSB
- 80m SSB Transceiver - YC3LSB
- 40m Mizuho DC7d CW Transceiver
- 40m Mizuho DC7x CW Transceiver
- 80m Transceiver MKARS - G6ALU
- 15m HiMite Transceiver - K1SWL
- 40m SSB Transceiver - JG1EAD
- 50 MHz AM Transceiver - JG1EAD
- 144 MHz FM Transceiver - JG1EAD
- 144 MHz SSB Transceiver - JG1EAD
- 430 MHz AM Transceiver - JG1EAD
Ontvangers · Récepteurs · Receivers (127)
- 3.5 MHz to 10 MHz Superheterodyne Receiver
- 7 MHz Direct Conversion Receiver
- 20m Direct Conversion Receiver
- 27 MHz R/C Receiver
- 80m/40m Direct Conversion Receiver
- 80m Superheterodyne Receiver
- Aircraft Receiver 118 MHz to 136 MHz
- AM Superheterodyne Receiver with NE612
- Shortwave AM Receiver
- 2 Bands Shortwave AM Receiver
- HF Receiver SSB Superheterodyne
- Receiver HF SSB CW Superheterodyne
- 144 MHz SSB Receiver - W1VT
- Two-stages HF Regenerative Receiver
- 80m/40m IQ Receiver - AK4AA
- 40m Direct Conversion Receiver - VU2ESE
- 1.8 MHz to 14.5MHz Direct Conversion Receiver
- 432 MHz FM Receiver - DF2FQ
- HF Receiver - WN5Y
- 144 MHz FM Receiver
- FM Receiver for Airband 137 MHz
- 14.070 MHz PSK31 Receiver - DL6FAP
- 20m PSK31 Receiver - DG2SK
- Ten-Tec 1253 Shortwave Receiver
- Direct Conversion Receiver with MOSFETs
- HF Direct Conversion Receiver - VU2UPX
- HF Receiver with MC3362 - VU2UPX
- 40m Binaural I/Q Receiver - KK7B
- Two Regenerative Receivers
- 40m SOP Receiver - N2CX
- Clasic40 Receiver - KK7B
- Herring HF Receiver - WA1LNQ
- Receiver for DRM - Digital Radio Mondiale - DL5MGD
- Receiver for 80m and 20m - OK2UGS
- Weather Receiver 137 MHz - F6BQU
- 144 MHz FM Receiver - PU2XJE
- Simple VHF FM Receiver
- Regenerative FM Receiver
- 80m SSB Super-80 Receiver - VK3YE
- VHF Receiver PLL - DF1FO
- Superregenerative HF Receiver
- Superregenerative VHF Receiver
- Receiver HF/VHF-AM/FM/SSB Grundig YB400
- 30m "Dirty-Thirty" Receiver - VE7BPO
- FM Broadcast Receiver TDA7000
- General Coverage AM Receiver - ON6MU
- Direct Conversion Receiver AM-Immune - KD1JV
- Short-Wave AM Receiver - KD1JV
- 3x2N2222 Short-Wave AM Receiver
- 40m 3xFET Direct Conversion Receiver
- 40m Software Defined Radio - PY2MG
- 80m Direct Conversion Receiver - PA2OHH
- HF AM/SSB Receiver - PY2MG
- Short-Wave Regenerative Receiver - PA2OHH
- VHF FM Receiver - PY2MG
- CB Receiver TCA440
- 20m SSB Receiver
- 118 MHz to 136 MHz Aviation Band Receiver
- Superregenerative RX for 144-432-1296 MHz - F9HX
- FM Receiver with Strength-meter
- Economy Short-Wave Receiver
- 2m AM Receiver
- 20m Direct Conversion Receiver - W1VD
- 40m AM/CW/SSB Regenerative Receiver
- 80m Two CW/SSB Superheterodyne Receivers
- 80m SSB/CW/AM Superheterodyne Receiver
- 80m Receiver IF=9MHz
- 144 MHz All-FET Direct Conversion Receiver
- 144 MHz SSB/CW Direct Conversion Receiver
- 144 MHz Superregenerative Receiver
- 432 MHz SSB/AM Receiver - YO3AVE
- FM Direct Conversion Receiver
- PNP Shortwave Receiver
- Simplest Direct Conversion Receiver
- VHF Superregenerative Receiver
- HF MultiPig Receiver - W8DIZ
- 0.3 MHz - 30 MHz SSB/AM Receiver - DC1YB
- 40m Parametric-Regenerative Receiver - AA1TJ
- HF Simple Regenerative Receiver - N1TEV
- 40m Direct Conversion Receiver - DL2YEO
- 80m All-BJT's Direct Conversion Receiver
- 30m SSB Superheterodyne Receiver
- 40m CW-SSB Simple Superhet Receiver
- 80m-40m Direct Concersion Receiver - VK3AWC
- All HF Bands Direct Conversion Receiver
- 410 MHz - Superregenerative Receiver for Remote Keyless
- FM Broadcast Superregenerative Receiver - VK2ZAY
- Simplest Shortwave Receiver
- VHF Superregenerative Receiver - VK2ZAY
- 136 MHz Airband Dual-Conversion Receiver
- FM / AM Superregenerative Receiver
- VHF Superregenerative Receiver with Squelch - N1TEV
- 1 MHz - 30 MHz QRP Receiver - KD1JV
- 14 MHz Simple Superhet Receiver - W7ZOI
- 20m Two-Superhet's Receivers - K9AY
- 40m Superhet Receiver with 74HC4053 - KD1JV
- 40m CCS Superhet Receiver - WB0RMT
- 40m "Tuna-Twin-Too" Receiver - KO4WX
- Shortwave "PipSqueak" Receiver - NA5N
- 3 MHz - 5 MHz Cascade Regenerative Receiver - WD5HOH
- 3 x Superregenerative Receivers - RSGB
- 40m MRX-40 Receiver - K8IDN
- Multiband HF Direct Conversion Receiver - RSGB
- 7 MHz Rock-Bending Receiver - WI5W
- HF MicroR2 SSB/CW Receiver
- HF DCR Polyphase Receiver - G0UPL
- AM Receiver with PLL - 4046
- Medium Wave Receiver for DX
- Short Wave AM Receiver with TCA440
- Regenerative Short-Wave Receiver - NA5N
- 80m AM/CW/SSB Receiver - YC3LSB
- 80m AM/SSB Receiver - YC3LSB
- 2.5 MHz Receiver for OMA-2500 station
- FM Receiver with Auto-scan
- 220 MHz to 400 MHz Air-band Scanner
- HF Regenerative Receiver with Dual-Gate MOSFET
- Simple FM Receiver with Audio Amplifier
- 6m / 2m FM Receiver
- 20m DCR with Active Filter
- 80m / 40m DCR Receiver
- 80m One-Stage-IF Superhet Receiver
- Active Aircraft AM Receiver
- FM Broadcast Superhet Receiver
- Public Service FM Receiver
- Short-Wave Superhet Receiver
- Very Low Frequency Whistler Receiver
- Single-Signal Direct Conversion Receiver - KK7B
Zenders · Émetteurs · Transmitters (69)
- 10W 40m CW Transmitter
- 2m Band Beacon
- Beacon for 144 MHz
- Beacon for VHF
- HF QRP CW Transmitter
- VHF Beacon
- Wireless AM Microphone
- X-tal VHF FM Transmitter
- 7 MHz CW QRP Transmitter
- 14 MHz CW QRP Transmitter
- 145 MHz X-tal FM Transmitter
- 27 MHz AM/FM Transmitter
- HF QRP CW Transmitter VXO - W7ZOI
- FM Audio Transmitter with Monitor
- 0.5W FM Transmitter 88MHz-108MHz
- 7 MHz 5W QRP Transmitter
- 7 MHz 12W Transmitter - NB6M
- 10m VXO QRP Transmitter - NB6M
- 27 MHz 2W Transmitter
- 40m 5W CW Transmitter - N1HFX
- 75m Phasing SSB Exciter - WA7JHZ
- Miniature Tracking Transmitter
- 4W PLL FM Transmitter - XQ5FOD
- 20m 1W Transmitter - PA2OHH
- 40m CW Transmitter - PY2MG
- HF SSB Exciter - KD1JV
- 3 GHz Beacon - G4DDK
- 5.7 GHz Beacon - F6BVA
- SHF Micro-beacon - F4BAY
- 6m CW Transmitter - VE7GC
- 1W HF CW Transmitter
- 50 MHz QRP AM Transmitter
- 80m-40m 6W CW Transmitter
- 80m Beacon
- 144 MHz 1W FM Transmitter
- 144 MHz AM/FM VFO Controlled Transmitter
- 144 MHz Low Power Beacon - YO3AVE
- 432 MHz CW Transmitter
- 432 MHz QRP FM Transmitter
- 1296 MHz Simple Transmitter
- QRP Transmitters
- 1.65 MHz QRP AM Transmitter
- 88 MHz - 108 MHz FM Transmitter
- HF Low-Power AM Transmitter
- 88 MHz - 108 MHz X-tal controlled 1W FM Transmitter
- 30m CW Transmitter
- 80m CW VFO Transmitter
- VLF 15W Transmitter
- 9 MHz SSB Modulator
- 88 MHz - 108 MHz 0.5W FM Transmitter
- High-Quality AM Transmitter
- 27 MHz 4W AM Transmitter
- 2W Two-Bands Transmitter - VK3XU
- 7 MHz QRP VFO Transmitter - W7ZOI
- 14 MHz 1W VFO Transmitter - W8PJ
- 40m QRP CW Transmitter - WB8VGE
- 40m The-QRP-Key Transmitter - WA8MCQ
- All-Bands VXO Transmitter - KN1H
- 2m Low-Power CW Beacon
- 9 MHz SSB Modulator Phasing-Method - RSGB
- SSB Modulators Filter-Method - RSGB
- 88 MHz - 108 MHz 25mW FM Transmitter
- 88 MHz - 108 MHz 20W FM Transmitter
- 40m MicroT2 SSB/CW Transmitter
- HF MKII All-Band CW Transmitter
- 88 MHz - 108 MHz 20W PA - ON6MU
- 80m Fox Beacon
- AM Broadcast mini-Transmitter
- SSB Generator - JG1EAD
Transverters & converters · Transverters et convertisseurs · Transverters and converters (61)
- 1.3 GHz Transverter - DB9LN / DB6NT
- 2.3 GHz to 144 MHz Transverter - DB6NT
- 5.7 GHz Transverter - DB6NT
- 10 GHz to 144 MHz Transverter - DB6NT
- 50 MHz Transverter - OE9PMJ
- 144 MHz to 28 MHz RX Converter MOS
- 144 MHz to 28 MHz RX Converter FET
- VHF to 1.3 GHz up-converter
- 1296 MHz to144 MHz Transverter - F5LGJ
- 10 GHz Transverter
- 70 MHz to 28 MHz Transverter - OZ2M
- No-Tune Transverter 1.3 GHz to 144 MHz - KK7B
- No-Tune Transverter 2304 MHz to 144 MHz - W8NLC
- Javornik 144 MHz to 14 MHz Transverter - S53WW
- 50 MHz junk-box converter - WA3ENK
- 50 MHz to 28 MHz Transverter - DK7ZB
- 50 MHz to 28 MHz simple Converter
- 144 MHz to 28 MHz Transverter
- Very Low Frequency Converter 0-250 kHz to 3.5 MHz
- UHF to VHF TV Converter
- 144 MHz to 28 MHz Receive Converter - N0GZ
- 1296 MHz Transverter - W1GHZ
- 144 MHz to 28MHz Transverter - LT2S
- 23cm to 70cm Transverter - I2SG
- 144 MHz to 2.4 GHz Upconverter
- 1.3 GHz to 144 MHz Transverter - OE9PMJ
- 2.3 GHz Transverter - DC8UG
- 5.7 GHz ATV Converter - DL1IN
- 70 MHz to 21 MHz Transverter - DF2FQ
- 2.32 GHz to 144 MHz Converter - DL5NEG
- 40m to 11m Transverter - PY2MG
- 50 MHz to 28 MHz RX Converter - PY2MG
- All-Bands HF to 9 MHz IF Transverter - YO3DAC/YO3BAL
- 144 MHz to 14 MHz Transverter - SM0VPO
- 2.3 GHz ATV Upconverter - F1HPR
- 2.3 GHz to 432 MHz Converter - DL5NEG
- 144 MHz to 28 MHz Transverter - WA6CDR
- 868.3 MHz to 144 MHz Transverter - F1JGP
- 1296 MHz to 144 MHz Transverter - F1OPA
- 0-550 kHz Very Low Frequency Converter
- 1.3 GHz ATV Downconverter
- 1.8 MHz to 28 MHz Transverter - YO2IS
- 24 MHz to 7 MHz Receive Converter
- 28 MHz to 432 MHz Linear Up-Converter
- 144 MHz to 14 MHz Transverter
- 144 MHz to 28 MHz RX Converter - YO3BAL / YO3DAC
- 144 MHz to 28 MHz Converter
- 2m to 10m RX Converter
- 144 MHz to 1296MHz Up-Converter
- 432 MHz to 28 MHz RX Converter
- 432 MHz to 50 MHz Transverter
- 432 MHz to 144 MHz RX Converter - YO3BAL
- 432 MHz to 144 MHz Downconverter
- 432 MHz to 144 MHz Transverter
- 1296 MHz to 144 MHz Receive Converter
- 28 MHz to 50 MHz Transverter - RSGB
- 136 kHz to 4.137 MHz Transverter - RSGB
- 50 MHz to 27 MHz Transverter - YC3LSB
- 80m to 40m Transverter - YC3LSB
- 27 MHz to Short Waves Converter
- AM Air-Band to Short Waves RX Converter
RF eindversterkers · Amplificateurs de puissance RF · RF power amplifiers (104)
- HF 10W Power Amplifier
- 50MHz 100W Power Amplifier
- 50MHz 350W Power Amplifier 2xBLX15
- 3 MHz to 30 MHz 80W Power Amplifier
- 144 MHz 125W Power Amplifier
- HF 60W Power Amplifier IRF840
- HF 10W to 200W Class E/F Power Amplifier
- 14 MHz 20W Linear Power Amplifier
- 144 MHz 100W Power Amplifier
- 144 MHz 180W Power Amplifier
- 432 MHz 50W Power Amplifier
- 432 MHz 110W Power Amplifier
- 144 MHz 75W PA with RX preamplifier
- 144 MHz 110W Linear PA
- 28 MHz 150W Power Amplifier
- 144 MHz 200W PA with RX preamplifier
- HF PA's with MOSFETs - DK7ZB
- 50 MHz 35W PA with MOSFET - DJ9FG
- HF 40W PA with MOSFET - WA2EBY
- 88-108 MHz 40W FM Power Amplifier
- 144 MHz 100W Push-Pull PA - YU1AW
- UHF 25W Power Amplifier
- VHF 30W Power Amplifier
- HF 10W MOSFET PA - LU8EHA
- HF 8W Power Amplifier - F6BQU
- 80m 5W Power Amplifier - S57NAN
- 2304 MHz 2.5W Power Amplifier - WA3JUF
- 50 MHz 350W Power Amplifier - 2xBLX15
- 3.4 GHz 3W Power Amplifier - DB6NT
- 3.4 GHz 7W Power Amplifier - DB6NT
- 10 GHz 4W Power Amplifier - DB6NT
- 1296 MHz 50W Power Amplifier - DJ1EE
- 70 MHz 160W Power Amplifier - GI0GDP
- 144 MHz 160W Power Amplifier
- 144 MHz 100W Linear Power Amplifier
- HF 7W Power Amplifier - ON6MU
- 50 MHz 150W Power Amplifier 1xBLX15
- 144 MHz 100W Power Amplifier 2xBLY94
- 40m 10W Power Amplifier - PY2MG
- 80m/40m 30W Power Amplifier - PY2MG
- 1.6 MHz - 30 MHz 300W Power Amplifier 2xBLF177
- 14 MHz 25W 2x MOSFET Power Amplifier - F6BCU
- 28 MHz 80W SSB Power Amplifier BLF246
- 88 MHz - 108 MHz 15W FM MOSFET Power Amplifier
- 100 MHz - 450 MHz 250W Power Amplifier BLF548
- 27 MHz 1kW Low Cost MOSFET Power Amplifier
- 27 MHz 500W Class-E MOSFET Power Amplifier
- 50 MHz 300W Linear MOSFET Power Amplifier
- 88 MHz - 108 MHz 300W MOSFET Power Amplifier
- 144 MHz 50W Power Amplifier - M0UKD
- 2.3 GHz 1.5W Power Amplifier - F1JGP
- 2.3 GHz 4W Power Amplifier - F5EFD
- 2.3 GHz 10W Power Amplifier - F1JGP
- 5.7 GHz 0.5W Power Amplifier - F1HPR
- 5.7 GHz 4W Power Amplifier - F1JGP
- 10 GHz 1W Power Amplifier - F1JGP
- 24 GHz 80mW Power Amplifier - F1GHB
- 1.3 GHz 1W Power Amplifier - IW2BC
- HF 600W MOSFET Power Amplifier
- HF 180W Power Amplifier
- 1 MHz to 30 MHz 5W Power Amplifier
- 1.8 MHz to 30 MHz 15W Power Amplifier - W8DIZ
- 10 MHz to 90 MHz 1kW MOSFET Power Amplifier
- 225 MHZ 450 MHz 10W Power Amplifier
- 70 MHz 150W Power Amplifier - YU1AW
- 135 MHz - 175 MHz 7W Power Amplifier
- 135 MHz - 175 MHz 15W Power Amplifier
- 400 MHz - 520 MHz 8W Power Amplifier
- 1.78 GHz Class-F Power Amplifier
- 1 GHz Inverse-Class-F Power Amplifier
- 13.56 MHz 400W Class-E Power Amplifier
- 27 MHz 500W Class-E Power Amplifier
- 144 MHz 55W Class-E Power Amplifier
- Cascode CMOS Class-E Power Amplifiers
- Class-F LDMOS Power Amplifier
- Equivalent Circuits Class-E PA
- VHF Class-E Power Amplifier
- 2 MHz - 50 MHz 1kW MOSFET PAs
- 30 MHz 300W MOSFET Power Amplifier
- VHF 150W MOSFET Power Amplifier
- VHF-UHF Broadband 100W Power Amplifier
- VHF 80W FM Power Amplifier
- HF 10W Power Amplifier - KD1JV
- 1 MHz - 30 MHz 150W Linear Power Amplifier
- 28 MHz 100W Linear Power Amplifier
- 7 MHz 200W Class E/F MOSFET PA - KN6EK
- HF 30W Class-D Linear Power Amplifier - OH2GF
- 1450 MHz - 1550 MHz 45W LDMOS Power Amplifier
- HF 250W LDMOS Power Amplifier
- 1.8MHz to 10.1MHz 5W MOSFET Power Amplifier
- 50MHZ 16W MOSFET Power Amplifier
- 88 MHz - 108 MHz 175W Power Amplifier
- HF 100W Power Amplifier - IRF520
- 80m 8W Linear PA - YC3LSB
- 27 MHz 4W Power Amplifier
- 1.8 MHz to 30 MHz 10W with IRF510 Power Amplifier
- 1.8 MHz to 30 MHz 10W MOSFET Power Amplifier
- 2.4 GHz 0.5W GaAs FET Power Amplifier
- 432 MHz 40W DMOS Push-Pull Power Amplifier
- 432 MHz 125W DMOS Push-Pull Power Amplifier
- 500 MHz 15W DMOS Power Amplifier
- VHF 150W DMOS Power Amplifier
- VHF 300W DMOS Push-Pull Power Amplifier
- 14 MHz 100W 2SK413-MOSFET PA - RSGB
HF ruisarme versterkers · Amplis HF faible bruit · HF low noise amplifiers (87)
- 2.4 GHz LNA 30dB-Gain 0.6dB-NF
- 10 GHz Low Noise Amplifier
- 144 MHz GaAs LNA
- 144 MHz LNA - YU1AW
- 432 MHz LNA MGF1402
- 432 MHz LNA - YU1AW
- 950 MHz to 2150 MHz LNA
- 1296 MHz Low Noise Amplifier
- Antenna Preamplifier 100 kHz to 220 MHz
- UHF TV Preamplifier 25dB Gain
- LNA for UHF Band BFP540
- High IP3 HF LNA
- L-band Low Noise Amplifier
- 950 MHz - 2150 MHz LNB
- HF Preselector - DL2JDN
- 3.5 GHz PHEMT LNA 0.9dB NF
- 10 GHz GaAs LNA - N1BWT
- 24 GHz HEMT LNA - WA3RMX
- 432 MHz GaAs LNA - N6CA
- 1.3 GHz LNA - PE1BVJ
- 2.4 GHz LNA +40dBm OIP3
- 100 MHz to 500 MHz LNA
- 800 MHz to 1000 MHz BJT LNA
- 900 MHz BJT LNA
- 900 MHz High Linearity pHEMT LNA
- 2.4 GHz LNA, 1.1dB-NF, +10dBm-IP3
- 2.4 GHz LNA 0.6dB-NF, 15dB-Gain
- 5.7 GHz LNA 1.2dB-NF, 15dB-Gain
- 50 MHz Low Noise FET Preamplifier - W1FB
- 432 MHz pHEMT LNA 0.4dB-NF - JH0WJF
- HF High Dynamic Range LNA
- VHF-UHF GaAs LNA - W3KKC
- 88MHz-108MHz Cascode LNA
- Short-Wave Tunable Preamplifier
- 2.4 GHz 0.5dB-NF pHEMT LNA
- 400 MHz LNA BFG540
- Wideband 432 MHz to 1296MHz pHEMT LNA - G0MRF
- 900 MHz LNA BFG505
- Wideband pHEMT LNA - W6PQL
- 1296 MHz Very Low Noise Amplifier - G4DDK
- 2304 MHz Very Low Noise Amplifier - G4DDK
- 1296 MHz BJT Low Noise Amplifier - WA6UAM
- 2.4 GHz LNA - F5JGP
- 1296 MHz LNA - F1JGP
- 70 MHz to 560 MHz Wideband High-Dynamic-Range LNA
- 100 kHz to 600 MHz Wideband Linear Amplifier
- HF Receive Loop Antenna Preamplifier
- 1 MHz to 100 MHz Dual-Stage LNA
- 40 MHz to 800 MHz Gain=28dB LNA
- 144 MHz BF981 LNA
- 144 MHz Tuned LNA
- 400 MHz to 800 MHz Gain=30dB LNA
- All-Bands Preselector
- 1.3 GHz GaAs-FET Low Noise Preamplifier - OH3MCK
- GPS 1.575 GHz, G=18dB, NF=1.3dB LNA
- 2140 MHz G=15dB, NF=1.5dB GaAs LNA
- 1 MHz - 30 MHz Ultra High Dynamic Range LNA - YU1AW
- 10.24 GHz GaAs LNA's
- 900 MHz G=22dB, NF=1.9dB, BJT LNA
- 50 MHz Dual-Gate LNA - OH2AUE
- 1.5 MHz - 50 MHz LNA+PA - YU1LM
- 900 MHz Integrated Cascode LNA
- 2.4 GHz, NF=1.5dB, G=14dB, HJ-FET LNA
- L-Band pHEMT LNA
- Voltage Probe Antenna Preamplifier - VE7BPO
- High-Dynamic Range Preamplifier - G3SBI
- 1.8 MHz to 54 MHz Preselector MFJ-1040
- Medium Wave Active Antenna
- 10 kHz - 30 MHz Antenna Preamplifier
- HF A
- ctive Loop Antenna
- 1 GHz to 8 GHz Cascode LNA
- 2 GHz LNA with Tunable Image Reject Filter
- 7 GHz Low Noise Amplifier
- 40 MHz to 800 MHz CATV LNA
- CATV Line-out Amplifier
- VHF Active Antenna
- Broadband J-FET Differential Amplifier
- 144 MHz MOS and FET Equiv LNA - RSGB
- Dipole LNA without Balun
- FET-BJT Cascode LNA
- High-IP3 HF LNA - RSGB
- 50 MHz BFPxxx LNA - YU1AW
- 70 MHz BFPxxx LNA - YU1AW
- 144 MHz BFPxxx LNA - YU1AW
- 144 MHz Dual-Gate LNA - YU1AW
- 432 MHz Dual-Gate LNA - YU1AW
Oscillatoren · Oscillateurs · Oscillators (107)
- 5 MHz to 5.4 MHz Variable Frequency Oscillator
- 6 MHz to 6.35 MHz Variable Frequency Oscillator
- 7 MHz to 7.3 MHz Variable Frequency Oscillator
- 30 MHz to 200 MHz VCO
- 50 MHz to 150 MHz Crystal Oscillator
- 50 MHz Crystal Oscillator
- 100 MHz Crystal Oscillator
- 100 MHz VCXO
- 455 kHz Ceramic Filter BFO
- Butler Crystal Oscillator
- Vackar VFO G3PDM
- High Power VFO - K7HFD
- Low Voltage Crystal Oscillator
- Parallel Mode Crystal Oscillator
- Series Mode Crystal Oscillator
- Variable Crystal Oscillator VXO
- 750 MHz Push-Push Oscillator
- Butler Overtone Crystal Oscillator
- High Overtone Crystal Oscillator
- 3 MHz to 30 MHz VCXO
- Low Noise Differential VFO - 5 MHz to 5.5 MHz
- VHF Oven Crystal Oscillator - W6PQL
- 1.3 GHz VCO with Emitter Noise Feedback
- 2 GHz to 4GHz VCO
- 220 MHz Low Noise Cascode Oscillator
- 600 MHz to 2.2GHz VCO
- 800 MHz to 2.2GHz Push-Pull VCO
- 1 GHz Differential VCO with Amplitude Control
- 10 MHz VXO
- 455 kHz Beat Frequency Oscillator
- Crystal Oscillators Types
- VXOs Types and Schematics
- 750 MHz to 1250 MHz VCO
- High Performance VHF Overtone Oscillator - GW4DGU
- Octave VCO with active bias
- 200 MHz to 400 MHz VCO
- 1700 MHz to 1950 MHz VCO
- Very Low Phase Noise Crystal Oscillator - Wenzel
- 1 GHz Very Low Phase Noise VCO
- 74 MHz to 105 MHz Low Noise VCO
- 100 MHz Low Phase Noise VCXO
- 125 MHz Very Low Phase Noise Oscillator - ADI
- 600 MHz to 1200 MHz Low Phase Noise VCO
- 18 MHz Stable and Constant Amplitude LO
- 1100 MHz to 1350 MHz VCO
- 70 MHz to 210 MHz VCO with Dual-Gate MOSFET
- 5 MHz to 6 MHz VFO - VE7CA
- 7 MHz VXO - NB6M
- 14 MHz VXO - NB6M
- 10 GHz DRO Oscillator
- 180 MHz X-tal Oscillator - F1ANH
- 5 MHz X-tal Coupled-Resonator LO
- 10 MHz Third-Overtone Pierce LO
- 10 MHz X-tal Cascode Oscillator
- 27 MHz Third-Overtone with TTL-output LO
- 40 MHz to 70 MHz VCO
- 42 MHz to 72 MHz VCO
- 100 MHz Fifth-Overtone Butler VCXO
- 110 MHz to 210 MHz VCO ESM500-Receiver
- 118 MHz to 198 MHz FM-Modulated LO
- 160 MHz to 260 MHz VCO ESV-Receiver
- 260 MHz to 520 MHz VCO HP8662A-SigGen
- 380 MHz to 520 MHz VCO
- 450 MHz Quarter-Wavelength VCO
- 567 MHz SAW Oscillator
- 800 MHz Very Low Phase Noise VCO
- Ceramic Resonator VCO
- HF Multiband VCO EK070-Receiver
- HF Multiband VCO ESH3-Receiver
- Low Phase Noise Push-Push VCO
- Third-Overtone VCXO with AGC
- 2.4 GHz to 2.8 GHz VCO
- 10.5 GHz DRO
- 102 MHz VCXO
- Cavity-Tuned Oscillator
- Butler X-tal Oscillators
- DC-Switched X-tal Oscillator
- FM-Modulated X-tal Oscillator
- 55.2 MHz VCXO - KA7OEI
- 1.93 MHz to 1.98 MHz Very Stable VFO - W8DIZ
- 5.05 MHz - 5.075 MHz Clapp VFO
- 1 MHz to 5 MHz Goral Type Oscillator
- 100 MHz Dual-Gate MOSFET Oscillator
- Triple Beat Frequency Oscillator
- 4.9 MHz to 5.5 MHz VFO - TS520
- 5.225 MHz - 5.575 MHz Franklin Stable VFO
- 7 MHz QSK VFO - NN1G
- Widerange VCXO W7ZOI
- 5 MHz VXO with ALC
- 21 MHz VCXO - G3MEV
- Variable Crystal Resonator Oscillator - K2BLA
- 1.3 GHz Low Phase Noise Cavity Stabilized VCO
- 6 GHz DRO
- 10 MHz Very Low Phase Noise X-tal Oscillator
- 40 MHz to 80 MHz Low Phase Noise VCO
- 72 MHz to 76 MHz VCO - NA5N
- 100 MHz Very Low Phase Noise VCXO
- 455 kHz PLL Variable BFO
- Microwave SAW VCO
- 3 MHz to 8 MHz VCO
- High Stability Time Base Oscillator
- WARC VFO - G3TSO
- 40 MHz Overtone Oscillator - PA0WSP
- 133.6 MHz VXO
- No-Tune Overtone XO - I4BER
- 5th Overtone X-tal Oscillator - Wenzel
- 10 MHz Overtone X-tal Oscillator
RF signaalbronnen & vermenigvuldigers · Sources RF et multiplicateurs · RF signal sources and multipliers (63)
- 2.4 GHz Signal Source - W6PQL
- 900 MHz Signal Source - W6PQL
- 1104 MHz Signal Source - W6PQL
- 1296 MHz Signal Spurce - W6PQL
- 116 MHz High Level X-tal LO
- 10 GHz LO Multiplier - N1BWT
- 404 MHz LO - AA5C
- 12 GHz Signal Source - DB6NT
- 2808 MHz Signal Source - DC0DA
- 3256 MHz Signal Source - DB6NT
- 5616 MHz Signal Source - DB6NT
- 10223 MHz Signal Source - DL1RQ
- 10368 MHz Signal Source - DJ6JJ
- 800 MHz to 2.4 GHz Frequency Tripler
- Frequency Multiplier 10 MHz to 30 MHz
- 432 MHz to 1296MHz Frequency Tripler
- Active Frequency Quadrupler
- 1.3 GHz Signal Generator - W6PQL
- 2.4 GHz Signal Generator - W6PQL
- 1152 MHz PLL Signal Source - OZ1GDS
- 1152 MHz Signal Source - F6BCU
- 1150/1152 MHz Signal Source
- 1152 MHz Signal Source - G4DDK
- 422 MHz to 1267 MHz Diode Frequency Tripler
- 1296 MHz Signal Source - W6FZJ
- 1296 MHz Weaksignal Noise Source - WA6UAM
- L-band Signal Source - N6TX
- 1.42 GHz to 5.7 GHz Multiplier - F1HPR
- 2.5 GHz Signal Source - G4DDK
- 2 GHz to 12 GHz Multiplier - F1OPA
- 9.5 GHz Signal Source - F6BVA
- 10.5 GHz Signal Source - F6BVA
- 12 GHz Signal Source - F6BVA
- 130 MHz to 6 GHz Multiplier - F1JGP
- 1296 MHz to 10368 MHz Multiplier - F6BVA
- C-band Signal Source - F1JGP
- 100 MHz to 1700 MHz Frequency Multiplier
- 902 MHz Signal Source
- 200 MHz to 600 MHz Frequency Tripler
- 800 MHz to 2400 MHz Frequency Tripler
- Varactor Tripler
- 0.5 MHz to 110 MHz AM/FM Signal Generator
- Simple 2.4 GHz Signal Source
- 1 GHz to 1.3 GHz Signal Source - G4DDK
- Frequency Multipliers Types
- 100 MHz - 500 MHz Multiplier
- 432 MHz - 1296 MHz Varactor Tripler - VK2TDN
- No-Processor DDS - G3XBM
- 1 kHz to 9 MHz Sinusoidal Signal Generator
- 1 kHz to 999 kHz PLL Signal Generator
- 2 MHz to 2 GHz AM Harmonics Generator
- 9 MHz to 1.3 GHz Harmonics Generator
- 44.4 MHz - 45.1 MHz PLL VFO - PA0KSB
- 455 kHz SSB Generator
- One chip VFO Stabilizer - G0UPL
- VFO Stabilizer - PY2MG
- VFO Stabilizer - PA0FRI
- Huff-and-Puff VFO Stabilizer - WN5Y
- VFO Stabilizer - PA0CMU
- 2 x Huff-and-Puff VFO Stabilizers - RSGB
- 40 MHz to 70 MHz 3-band Frequency Stabilizer - DC4KU
- 1 MHz to 100 MHz VFO Stabilizer
- VFO Stabilizer - PA0KSB
VFO stabilisators · Stabilisateurs de VFO · VFO stabilizers (9)
RF schakelaars & verzwakkers · Commutateurs et atténuateurs RF · RF switches and attenuators (20)
- IF Filters Switching Circuit
- TX/RX RF Switch FET
- TX/RX RF Switch PIN
- RF Sensing TX/RX Switch
- RX/TX Quarter-Wave PIN Switch
- PIN Attenuator BAR61
- Variable PIN Attenuator 1dB to 20dB
- AGC with PIN Attenuator
- 4xPIN Diodes Wideband Switch
- Modulator-Demodulator using PIN Diodes
- Phase Shifter using PIN Diodes
- RF Attenuator Types using PIN Diodes
- RF Switch Types using PIN Diodes
- AGC PIN Attenuator
- Automatic Antenna Attenualtor 45dB range - RSGB
- HF 25W PIN Antenna Switch
- All Transfer PIN Switches
- PIN Diode Limiter
- SPMT PIN Switches
- T/R Switch with Lumped Transmission Line
RF mengtrappen · Mélangeurs RF · RF mixers (23)
- Doubly Balanced Mixer MC1496
- Mixer Diplexer
- Dual MOSFET Mixer
- Microwave Mixers
- Stripline Quadrature Microwave Mixers
- High IP3 Mixer +40dBm - IK4AUY
- 1296 MHz Diode Mixer - WA6UAM
- Dual-FET HF Mixer
- High Dynamic Range HF Mixer
- High IP3 (33dBm) BJT Mixer
- 900 MHz BJT Gilbert Mixer
- HF Sub-Harmonic Mixer
- 1152-10368-24192 MHz Harmonic Mixer
- Microwave Harmonic Mixer
- 1296 MHz DBM with ferrite balun - WA6UAM
- 1296 MHz DBM with coaxial balun - WA6UAM
- Microwave Coaxial Diode Mixers
- Distribute Diode Single-Balanced Narrowband Hybrid Mixer
- Single Schottky Diode Mixer
- Two-BJT Product Detector
- Dual-Gate MOSFET Product Detector
- 2.4 GHz Microstrip Harmonic Mixer
- Double Balanced BJT Mixer - JG1EAD
ATV zenders & modulators · Émetteurs et modulateurs ATV · ATV transmitters and modulators (52)
- Audio/Video Transmitter
- AM TV Transmitter
- 23cm ATV FM Transmitter
- A-V UHF TV Modulator
- Crystal TV Video Modulator
- TV Audio-Video Transmitter
- Simple TV Video Modulator
- TV Modulator
- A-V Transmitter - ZP5ZDM
- A-V VHF Transmitter
- FM ATV Receiver
- UHF A-V 1W Transmitter
- 1296 MHz FM ATV Transmitter - I2ROM
- ATV FM Receiver-Demodulator
- 470 MHZ PLL FM Video Demodulator
- Two ATV FM PLL Demodulators
- 432 MHz ATV AM Transmitter
- 439 MHz ATV AM Transmitter
- 902 MHz PLL FM ATV Transmitter
- 1296 MHz 300mW FM ATV Transmitter
- 1296 MHz AM ATV Transmitter
- 1296 MHz FM ATV Transmitter - F3YX
- UHF 2W AM ATV Transmitter
- UHF 5W AM ATV Transmitter
- 1296 MHz PLL controlled FM ATV Transmitter - N9ZIA
- Helical Resonator Dimensions
- Crystal Filters Types
- 10 MHz SSB Ladder X-tal Filter
- 3.58 MHz CW Ladder Filter - N2DCH
- Variable Bandwidth X-tal Filter - G3UUR
- Variable Quartz Filter
- 4.43 MHz SSB Filter
- 27 MHz - 40 MHz Lumped Component Diplexer
- 430 MHz to 780 MHz Tunable Filter
- 88 MHz - 108 MHz Notch Filter
- Notch-Filter using Coax Cable
- Active Baluns - Differential to Single Ended
- Active Baluns - Single Ended to Differential
- Balun Transformers
- 433 MHz Lumped Components Balun
- Broadband Transformers
- Guanella 4:1 Current Balun
- 4:1 Broadband Transformers
- HF Line Coupler
- Active RF Isolator
- Low Frequency Active Isolator/Circulator - Wenzel
- Power Combiners / Dividers - RSGB
- DC-100 MHz Active Circulator/Isolator
- Resistive Couplers
- Narrowband Coupler from Wilkinson Divider
- N-way Wilkinson Splitter
- Wilkinson Divider Versions
RF testschakelingen · Circuits de test RF · RF test circuits (86)
- Capacitance Meter
- Field Strength Meter LM324
- HF Q-meter VK5JST
- Antenna Analyzer - F6BQU
- RF Power Calibrator
- VHF Wattmeter
- 88 MHz - 960 MHz Antenna Analyzer
- LED RF Power Meter - N9ZIA
- Return Loss Bridge
- Return Loss Bridge with AD8307
- HF SWR Bridge
- Grid Dip Meter 2 MHz - 20 MHz
- Field Strength Meter 3 Levels
- BandScope for 2m Band
- Lightening Detector
- 3-Digits Dip Meter
- Calibrated Noise Source
- Capacitance Meter using DVM
- Inductance Meter using DVM
- High-Impedance RF Probe
- DC to 500 MHz Log Detector/Amplifier - DJ1ES
- L-C-R Bridge - G3BIK
- Phase Meter
- Inductance Meter - VK5BR
- L/C Meter - IZ7ATH
- FM Deviation Meter
- Flicker-Noise Generator - Wenzel
- 2.4 GHz mW Power Meter - F1HDD
- Simple Crystal Tester - F5JTZ
- Inductance Meter - N5ESE
- Magnetic Field Meter
- RF dBu Meter
- Two chips LED Frequency Counter - PA2OHH
- 0-99 kHz Frequency Counter - G0UPL
- LED SWR/Power meter - PY2MG
- Electro-Magnetic Waves Detector
- Long-Wave Lightening Detector
- Cable Reflection Tester - N9ZIA
- TDR Circuit and Signals - T.Engdhal
- 1 MHz to 1 GHz LED Absorption Meter - GW1TDV
- S9 HF Signal Generator
- Antenna Noise Bridge
- Audio Filter Analyzer
- True Linear RF Power Detector
- Grid Dip Meter 3.5 MHz to 110 MHz
- 1.6 MHz to 150 MHz Modulated Grid-Dip Meter
- Five Grid-Dip Meters
- 30 kHz to 30 MHz Sinusoidal Signal Generator
- Capacimeter using NE555
- 0-1uF Capacimeter
- Coil Short-Circuit Detector
- Fonometer
- All-BJTs L-C Meter
- VHF FM Signal Generator
- Sweeper for 455 kHz IF
- 500 kHz to 3 GHz LED Field-Strength Meter
- 2xBJT Capacimeter
- Varactor Capacimeter
- Automatic VSWR and Power Meter - W0INK
- RF Sweeper - VK2ZAY
- Very Low Frequency Survey Probe - VK2ZAY
- 1 MHz to 30 MHz Noise Source - G1HSM
- Capacimeter with 2xNE555 - WA8MCQ
- Dual-LED SWR Indicator for QRP
- HF In-Line Return Loss and Power Meter - N2PK
- SWR Bridge Tuner "Rainbow" - N2CX
- Spectrum Analyzer on the Oscilloscope
- Grid-Dip Meter with Digital Display
- Marker Generator - KB1MW
- Micro-Wattmeter - W7DB
- HF Antenna Tuner with VSWR-meter
- Sweep Generator - NA5N
- Simple Function Generator
- Optical SWR meter
- Glitch Detector
- Satellite Finder
- Electrostatic Detector
- 1nF to 100uF Capacimeter
- 10 Hz to100 kHz Frequency-to-Voltage Converter
- 100 kHz to 30 MHz RF Probe with Detector Monitor
- 100 MHz Oscilloscope Probe
- L/C meter multirange
- VHF LC Resonance Indicator
- Harmonics Detector - G3JGO
- Lighting Storm Monitor
- Sudden Ionospheric Disturbance Receiver
Filters · Filtres · Filters (11)
- Helical Resonator Dimensions
- Crystal Filters Types
- 10 MHz SSB Ladder X-tal Filter
- 3.58 MHz CW Ladder Filter - N2DCH
- Variable Bandwidth X-tal Filter - G3UUR
- Variable Quartz Filter
- 4.43 MHz SSB Filter
- 27 MHz - 40 MHz Lumped Component Diplexer
- 430 MHz to 780 MHz Tunable Filter
- 88 MHz - 108 MHz Notch Filter
- Notch-Filter using Coax Cable
Baluns · Baluns · Baluns (7)
Koppelaars / splitters / isolators · Coupleurs / diviseurs / isolateurs · Couplers / splitters / isolators (9)
Voedingen · Alimentations · Power supplies (36)
- DC Protection Circuits
- Overvoltage Protection
- Power Supply 13.8V/20A
- 12V Battery Charger
- 13.8V Float-Charging Power Supply
- 28V / 20A Power Supply
- Low Noise Power Supply for Audio Amplifiers
- Power Supply with Noise Clean-up Circuit - Wenzel
- 13.8V / 10A Power Supply - N1HFX
- 13.8V / 40A Power Supply - OZ2BKK
- 13.8V / 25A Power Supply - F5JTZ
- 28V / 50A Power Supply - F5UAM
- 1.25V-25V / 2.5A Power Supply
- DC/DC using a Linear Regulator
- High Voltage DC/DC Converter
- 0-30V 3A Switch-Mode Power Supply
- Electronic Keyer - F5JTZ
- Iambic Touch-Keyer - YC5NBX
- Simple CMOS Keyer - OH7SV
- Simple Electronic Keyer - N1HFX
- CW Electronic Keyer
- CMOS Iambic Keyer - N5FC
- All-BJTs Keyer
- CW Keyer - YO3APG
- Deluxe All-Solid-State Iambic Keyer - W1RML
- Electronic CW Keyer - YO3CZI
- Single-IC CW Keyer - W9HFM
- CW Keyer with NE555
- Memory Keyer - AI2T
- Micro-TO CW Keyer - K8CU
- AGC with Squelch Control
- AGC with AM Detector
- Receiver AGC with hang threshold
- AGC / S-meter - PY2MG
- AGC Audio Preamplifier
- AGC in Audio - RSGB
Audio schakelingen · Circuits audio · Audio circuits (44)
- Active CW Filter and Audio Amplifier
- Dynamic Noise Filter
- Microphone Preamplifier Electret
- Microphone Speech Processor
- Microphone Amplifier Low/High Impedance
- Class-A Headphone Amplifier
- Class-A Audio Amplifier
- Speech Processor - TL081
- Variable CW Bandpass Filter
- Variable CW Filter and Amplifier
- Audio Automatic Gain Control
- Baxandall Audio Filter
- Microphone Amplifier with ALC
- Audio Amplifier with mute control
- Noise Canceling Electret Microphones - WB9YBM
- Dynamic Microphone Preamplifier
- Speech Processor - All BJT
- Audio Preamplifier with Dynamic Noise Reduction
- Class-A HIFI Headphone Amplifier
- Super Class-A Low Distortion 3W Amplifier
- CW Audio Filter with Digital Selection - PY2MG
- Microphone Preamplifier with Tone Control - PY2MG
- Boosting Gain and Limiter of LM386 - VK3AWC
- Variable Audio LPF with MAX293
- 300 Hz - 3 kHz Microphone Filter
- VOX Circuit
- Voice Level Meter
- Microphone Dynamic Compressor
- 1kHz Sine Wave Oscillator
- High-Pass Low-Pass Microphone Preamplifier - N2MNN
- Passive Audio SSB-CW Filters - W3TS
- LC CW Band Pass Filters - DC8NR
- Audio Intelligibility Enhancer - N4GG
- Dual-Tone Audio Generator - VE3FIT
- RF Speech Clipper - DF4ZS
- 1W Audio Amplifier with Compressor
- Booster for Elektret Microphone
- 74dB Gain with LM386 - JF1OZL
- Active Audio BPF 1kHz Bandwidth
- Audio Squelch Circuit
- High Dynamic Range Audio Compressor
- Low Distortion CW Filter
- SSB Audio Filter
- Active Noise Canceling Headphones
Elektronische CW keyers · Manipulateurs CW électroniques · Electronic CW keyers (14)
- Electronic Keyer - F5JTZ
- Iambic Touch-Keyer - YC5NBX
- Simple CMOS Keyer - OH7SV
- Simple Electronic Keyer - N1HFX
- CW Electronic Keyer
- CMOS Iambic Keyer - N5FC
- All-BJTs Keyer
- CW Keyer - YO3APG
- Deluxe All-Solid-State Iambic Keyer - W1RML
- Electronic CW Keyer - YO3CZI
- Single-IC CW Keyer - W9HFM
- CW Keyer with NE555
- Memory Keyer - AI2T
- Micro-TO CW Keyer - K8CU
AGC schakelingen · Circuits CAG · AGC circuits (6)
Microgolf & microstrip schakelingen · Circuits hyperfréquences et microruban · Microwave and microstrip circuits (31)
- Microwave Motion Detector
- Biasing Microwave GaAs FET's
- UHF Doppler Motion Detector
- 2.4 GHz Prescaler
- Divide by N using 74160 - Wenzel
- Staircase Frequency Divider - Wenzel
- Frequency Counter Prescaler
- 12 GHz : 1000 Prescaler - DG6RBP
- Quarter-wave Coaxial Baluns
- UHF Movement Detector
- Bias-Tee 5 kHz to 3 GHz
- Microwave Coaxial AM Diode Detector
- Microwave FM Diode Detectors
- Microwave Microstrip AM Diode Detector
- Power-Combining using Wilkinson Dividers
- Distributed Wideband Balun for Microwaves
- Microstrip Couplers
- Microstrip Stubs
- Phase Shifters Topology
- 1296 MHz Cavity Tuned BPF - VK2TDN
- Microstrip Balun
- Microstrip Filter Comparation
- Microstrip Phase-Shifter T/R-switch
- Gunn Diode Oscillators
- 47 GHz to 94 GHz Frequency Doubler
- Microstrip Bends
- Microstrip Coupler Splitter Balun
- Microstrip Discontinuities and Applications
- Microstrip T-Junctions
- Waveguide Transistions
- Lumped to Distributed Conversion
Diverse schakelingen · Circuits divers · Miscellaneous circuits (34)
- High Dynamic Range Noise Blanker
- Left / Right Revolution Counter (for tuning)
- RF Activated Tone Monitor
- PTT Delay Circuit - W3KKC
- HF QRP Manual Tuner - W6JJZ
- Ultrasonic Proximity Detector
- Multi-Q Receive Loop Antenna
- Phase Detector with Discrete Components EK47-Receiver
- Low-Cost FSK Generator
- Noise Blanker
- Laser-Torch Wireless Communication
- LNB 13V/18V H/V Switch
- Modulation Circuit for SHF Beacon
- RX/TX 27 MHz Wireless Remote Control
- Air-Speed Sensor for Cooling Fan
- 3xFETs Noise Blanker
- Antenna-Tuner for QRP
- RIT for VFO Transceivers
- 90-degrees Phase-Shifter for IQ-modulation
- S-meter 120dB Dynamic Range - DC4KU
- Prevent Thermal Runaway for BJT Power Amplifiers
- Temperature Compensation for X-tal Oscillators - I6MCF
- 500 kHz - 30 MHz Antenna Tuner
- Balanced Antenna Tuner - W4MMQ
- Simple Dual-Gate MOSFET PLL
- HF Antenna Tuner with VSWR-meter
- FSK Modulator CMOS
- Line Synchronous Noise Blanker - KA7OEI
- Interference Canceling Circuit - VK5BR
- Cascode Amplifiers - JG1EAD
- Sine to Square Wave Converter - Wenzel
- SSB Modulator/Demodulator - JG1EAD
- IQ Phasing Modulator
- Tayloe IQ Detector - W6JL