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2026-10-09
- 170 new manuals added in aes, alinco, bitsavers, b&k, century, collins, dovetron, ebooks, eico, electric-eye, freq-electronics, goodwill, hickok, johnson, kantronics, micronta, military, national, rca, scientific_radio, sencore, sylvania, tennelec, triplett, uniden, and xyz.
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2026-10-21
- New beta site for public review.
Amateur Misc
Files
- 10 GHz Fun - Getting on the 3cm Band.pdf
- 10 Meter 100W linear Amplifier.pdf
- 100W VHF Linear Amplifier.pdf
- 144MHz 16W VMOS Power Amplifier ETI720.pdf
- 2 Meter Half-Kilowatt At Moderate Cost.pdf
- 2 Metre Band Converter.pdf
- 25W Booster Amp for UHF Mobile Rigs ETI 738.pdf
- 29MHz Amplifier.pdf
- 5.6 GHz microwave converter.pdf
- 52MHz Band to VHF Converter.pdf
- 70W Booster for 28 & 52 MHz ETI726.pdf
- 800W HF Linear Amplifier.pdf
- All Band Shortwave Converter Part 2 PW 1977-12.pdf
- All Purpose Amateur Radio Metering Circuit.pdf
- Amateur Radio Applications for an Active Filter.pdf
- Amateur Radio Assorted Circuits.pdf
- Amateur Radio Glossary.pdf
- Amateur Radio History.pdf
- Amateur Radio Humor.pdf
- Amateur Radio Projects.pdf
- Amateur Radio Station Grounding and Lightning Protection.pdf
- Amateur Video Transmitter.pdf
- Ameritron ALS-1306 1200W Linear Amplifier Instruction-Manual with Schematics Rev1A.pdf
- An ATV Downconverter with a Differrence.pdf
- An audio booster for your handheld.pdf
- ARRL General Class License Manual - 9th Edition_text.pdf
- ARRL VHF Digital Handbook First Edition - Ford.pdf
- ATV Receiver Preamp.pdf
- Audible Tuning Aid for Blind Hams.pdf
- Audio Noise Blanker for Amateur Radio.pdf
- Audio Noise Blanker.pdf
- Automatic Morse code station identifier.pdf
- Broadband RF Amplifiers.pdf
- Build a Tone Processor for Amater Radio.pdf
- Building Solar Powered Repeaters.pdf
- Canadian Capers.pdf
- Cave Radio Communications Part 1 ENB 1997-06.pdf
- Code Learning Aid.pdf
- Communications Audio Board.pdf
- Communications Simplified Part 21.pdf
- Control Centre for Amateurs.pdf
- Converting Surplus Overview Covering Coaxial Relays.pdf
- Crystal Diode Detectors.pdf
- D-Star - New Modes for VHF-UHF Amateur Radio Part 1.pdf
- Digital Readout for Short Wave Receivers.pdf
- DIY QSL Cards.pdf
- ELF Radio Reception.pdf
- EME Array Tracker for OSCAR.pdf
- Fixing Some Ham Radio Technical Problems.pdf
- FM Repeater Topics.pdf
- Franklin VFO, The.pdf
- Grid Square Location Aid.pdf
- Ham Radio for Dummies - Silver.pdf
- Ham Radio Noise Remover.pdf
- Ham Radio Potpourri.pdf
- Ham Radio Transmission Line Transformers Handbook - Sevick.pdf
- Heathkit HW-101 SSB Transceiver.pdf
- High Pass Filter Lightning Protection EA 1980-05.pdf
- History of Ham Radio Parts 1-2 1999-10.pdf
- Hunt the AutoFox.pdf
- HW-9 Thump Suppressers.pdf
- Improving Reception in Crowded VHF & UHF Bands (2).pdf
- Improving Reception in Crowded VHF & UHF Bands.pdf
- Inbound RFI.pdf
- Is 2 Meters Hazardous to Your Health.pdf
- Kill Your Interference.pdf
- Lightning and the Radio Amateur.pdf
- Link Controller for the S-COM 5K Repeater Controller.pdf
- Loop Aerial SW Receiver.pdf
- MFJ MFJ-1270X Packet Controller Full Manual V2.pdf
- Microprocessor Repeater Controller Part 1 73 1991-10.pdf
- Mixing Frequencies - A New Look.pdf
- Mnemonic Morse for Code Haters.pdf
- Mobile Extender Using VOX Control - Improved.pdf
- Modify a CB VSWR Meter for Ham Use.pdf
- Noise and Its Amateur Implications.pdf
- Noise Blanker.pdf
- Oddball Offsets for the KDK-201R 73 Pre 1981.pdf
- Overmodulation Detector.pdf
- Phase Locked Loop Decoder.pdf
- Porta-Peater - The Instant Communicator.pdf
- Portable Packet Digipeater for Emergency Service.pdf
- PortaPeater.pdf
- Power Plus for the Omni - Improving in Ten-Tec's Power Supply 73 pre 1981.pdf
- Preselector for a Short Wave Receiver.pdf
- Preselector for Elektor SDR EK 2009-12.pdf
- Radio Amateurs Handbook First Edition 1926 - ARRL - Francis Edward Handy.pdf
- Radio Direction Finding.pdf
- Repeater Keying Line Control.pdf
- Resolving 2 Meter Cable TV Interference.pdf
- Safety for the Travelling Ham.pdf
- Selectacall addon for ham-CB transceivers ETI 723.pdf
- Simple 6 metre to 2 metre Transverter.pdf
- Simple VFO-Exciter.pdf
- Simplex Autopatch.pdf
- Six Meters From Your Easy Chair.pdf
- Smart Squelch for SSB.pdf
- Some Amateur Radio Repairs.pdf
- Speech Bandwidth Compression Circuit.pdf
- The Ubiquitous Coaxial Connector.pdf
- Transmitting Ferrite Loop for 80-160 Metres.pdf
- UHF Filters for Amateur Use.pdf
- Universal VFO Project.pdf
- Unlocking the Radio Shack HTX-100.pdf
- Using Digital Frequency Counters for Ham Radio.pdf
- VHF Interference Problems.pdf
- VOX Plus HT Accessory.pdf
- What is Half Duplex.pdf
- Wideband RF Amplifier 7 MHz to 225 MHz.pdf
- Zonal time computer.pdf
Contact and submissions
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