vox diagram

Single Coil Z Match - Single Coil Z Match, circuit Diagram and homebrewing notes

A Magnetic Loop Antenna for Shortwave Listening (SWL) by KR1ST - A well documented plan to build a magnetic loop antenna for Shortwave Listening, includes photos and diagrams.

Small magnetic receiving loops - Article about magnetic loops, construction notes and diagrams

F5KEE Quagi 8 elements - An 8 element quagi antenna for 2 meters band, with pictures and diagrams, in french

Geloso story - Includes some schematic diagrams

Antique Radio Schematics and Capacitors for Tube Radios - Specializes in antique radio schematics and capacitors. carries antique radio schematic diagrams and electronic circuit service information for american, canadian and european antique radios.

Atwater Kent Home Page - This is a "techie" site, dedicated to presenting service manuals, parts lists, schematic diagrams and other information of value to restorers and technicians who try to keep these radios working

Canadian Antique Radios Schematics Diagrams Service - We specialize in canadian antique radio schematics for vintage tube radios made in canada. we carry lots of factory electronic circuit schematic diagrams as well as all rcc / radio college of canada service data 1920's - 70's.

Adonis - Adonis microphones for amateur radio, and accessories, vox, double vox, voice memory, voice mixer

6m technical docuemnts - A collection of scanned diagrams and designs, documents and modifications for 50 Mhz ham radio equipment

QSK for the TL-922 and SB-220 mods - Beautifully constructed amplifiers. Unfortunately, are not suited for high speed T-R switching, a necessary attribute for operating AMTOR, QSK-CW, or SSB-VOX modes.

Yaesu FT-847 (FT 847 FT847) at ham.dzm.ro - Yaesu FT-847 (FT 847 FT847) transceivers mods reviews software manuals and diagrams

Yaesu FT-897D System Diagram - Interconnecting the YAesu FT-897 or 897D

IK5MEN HF amplifier 10-160m. - Italian page including pictures schematics diagrams of an home made linear amplifier using four EL509 in parallel. Output power is about 700W.

SUPERVOX - S 300 - AM CW SSB linear amplifier for 160 80 and 40 meter band

Homebrew HF Amp with 3CX3000F7 - Grounded grid triode HF linear amplifier with pictures and schematics diagrams by W2DTC. The amp design was for 160 80 40 and 20 meters

DL5DBM 1KW amplifier for 144 Mhz - Pictures and circuit diagramm to build this power amplifier for 2 meters

A simple VOX circuit - Here is a 3 transistors 6 diodes circuit that is a Voice Operated Tx PTT control as well as an ANTI VOX circuit to stop mis-operation from Rx noise by G8MNY

Cobra Radios Service info  ^updated - Service information, manuals, diagrams pictures and schematics, and technical files on Cobra Radios

Bowden's Hobby Circuits - A small collection of electronic circuits for the hobbyist or student. Site includes over 100 circuit diagrams, links to related sites, commercial kits and projects, newsgroups and educational areas. Most of the circuits can be built with common components available from Radio Shack or salvaged from scrap electronic equipment

Build a Vox Circuit - by Mike Martell N1HFX

Portable PSK Station - Color photos, schematic and diagrams for an article written by N2APB for Fall 2000 QRPp. Also the subject of a presentation made at the Pacificon QRP Forum in October 2000.An Integrated and Portable PSK Station for 80 & 20 without using a PC!

External Keypad for FT-817 - An external keypad for FT-817(ND), for the serious portable/field-day contester/operator. Homebrew it with the free firmware and public circuit diagram. The circuit is very simple and takes power supply from the ACC port of the radio

Receiver block diagram - This is a block diagram of a superhetrodyne receiver.

Ham.dmz.ro  ^pop - Programming software, diagrams, radio mods, secrets, service manuals for Motorola, Yaesu, Kenwood, Icom, Alinco.