withers modifications

North West CB Radio - North West CB Radio is a page with radio modifications’s, Local Portland’s Traffic info, Trucker things like CB slang, DX info and a forum. Also we host The Saturday Night Stomp Fest in the Portland area. Results are posted weekly.

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

Heathkit SB-220 - The Heathkit SB-220, two 3-500Z, amplifier made a notable impact in the world of amateur radio when it debuted in 1975. Resources and modifications

Icom IC-746 mods - Schematics, modifications and manuals for ICOM IC-746

Low cost frequency stabilisation - The Icom IC-746 is quite a popular HF/VHF multimode transceiver which has one shortcoming in its standard configuration when used to operate modes requiring good medium-term frequency stability.

Icom IC-746 modifications - Collection of Icom IC-746 mods

Modifications for the Kenwood TS-850 - Another good collection of TS-850 modifications

Two Kenwood TS850 modifications - Here are two simple modifications / repairs for the Kenwood TS850 HF transceiver, dual receiver mod, and battery pack replacement

Yaesu FT-100D modifications - Modifications schematics and manuals

Modifications for the Yaesu FT-100 - mods for the Yaesu FT-100 by radiomods.co.nz

FT-1000D mic. modifications - A collection of mods for the yaesu FT-1000D

Modifications for the Yaesu FT-847 - Some interesting mods for the 847

Yaesu FT 857 mods and manuals  ^pop - Yaesu FT-857 modifications, schematics and manuals

Yaesu FT-857D modifications and manuals  ^pop - Modifications schematics and manuals for the Yaesu FT-857D

Yaesu FT 897 mods  ^pop - Modifications, schematics, programming interfaces and manuals for the Yaesu FT-897

FT-897D Modification sheet - Lot's of FT 897 modifications in a single PDF file

Icom IC-V8000 - ICOM IC-V8000 modifications, manuals and schematics

WZ1V's VHF modifications page - A collection of modifications to the AM6154/55 linear amplifier

Modifications to the Ameritron AL-1200 Amplifier - This page describes two modifications W8WWV made to his AL-1200 amplifier. The mods were obtained from Ameritron, so they are official.

AM-6154 FAA Amplifier circuit conversion - AM-6154 222MHz grid Conversion Information by N0UK

AM6155 / 64 modifications - KF0M's mods for the AM6155 AM6154 RF amplifier

Yaesu FT-1000D HiFi SSB Audio and Mods - Using Hi-Fi Audio with FT-1000. Includes many FT-1000D modifications too by K6JRF

Simple Reverse Polarity Protection - This simple modification is applicable to pretty much any 12 volt operated, positive earth equipment. by Chris Cox, N0UK, G4JEC

Television channel 11 interference. - Solving interference from television channel 11 on 144MHz transverters by Chris Cox, NØUK, G4JEC

Repeaters: radio modification page - Modifications for motorola and ericsson radio repeater