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It has come to my attention that several links on this page are now pointed at Pornography websites. Viewers Beware!

I'm in the process of updating my link pages. If you find a link that is broken or pornographic then please email me with the information.

Mods/Conversion/Troubleshooting: 

• 50MHz Modification pages 
• 6 Meter Tech Files 
• 9600 baud Land Mobile Modifications  
• Alinco mods 
• Bearcat 210 Scanner Conversion for Weather Satellites 
• Collins Radio Repair - Dutch WB7DYW
• DRAKE MODS 
• E. F. Johnson Ranger Mods 
• GE 900 Mhz TMX/MVS/MCS To Amateur use 
• GE MASTR II InfoSite 
• GE MASTR II Conversion Info 
• GE Mastr II radios
• GE MASTR II Convert to Repeater - 
• GE Modification Page 
• Heathkit Service Bulletins and Mods - 
• Heathkit Troubleshooting Tips 
• Heathkit SW-7800 Mods Web Page 
• Heatkit HW-7 Modifications 
• Heathkit HW-8 Rx Offset Fix 
• Icom IC-706 mods 
• Kenwood Application Notes 
• Kenwood Service Bulletins 
• Kenwood TS-850 Mods at KB1GW 
• MFJ Qrp Rig mods 
• Mods from AF4K 
• Mods from - Boston ARC
• Bucher Scanner & Ham Radio Mods 
• Mods -at cs.buffalo ftp server 
• Mods - From DXer.com 
• Mods - Hamster's Radio Modification 
• Mods at Oakland University ftp server 
• Mods at QRZ Radio 
• Mods Radio Modification Files 
• Mods from K7ON 
• Motorola Mods, and info 
• Motorola Modification Page 
• Motorola Micor Notes repeater use 
• Many Micor Modifications at kuggie 
• Motorola MICOR and MITREX 
• Motorola MITREX 440 to a 9600 
• QRP-PLUS "Anti-Thump" Mod 
• The Repeater Builders Technical Information Page 
• Repeater Modifications  
• Scanner - Baseband Audio Mods 
• Ten-Tec 509 Cleaner Keying Mod 
• Ten-Tec Argonaut 509 Improving SSB 
• Ten-Tec Argonauts Curing VHF Interference 
• Improving Receiver Performance 
• Yaesu FT-50 Information 
• Yaesu FT--50 information page - Compiled by KF4MYN 
• Yaesu VX-1R Unoffical Modifications 

Technical Reference: 

• AC6V's TEC REF - Lots of good stuff
• Chip Directory 
• Coax Cable Database from Times Microwave 
• COAXIAL CABLE SPECIFICATIONS 
• Coaxial Cable Types 
• Component Database Server at Penn State 
• Conversion of Power (dBm to MilliWatts) 
• Dallas Semiconductor 
• Duplexer Tuning - 
• Eimac (Tube Manufacturer) 
• Electronics Info Page - of Tomi Engdahl Lots of Info 
• Good source for amplifier tips 
• Microstrip Calculator in Java 
• Motorola RF Transistor info 
• Molex Incorporated - Connectors 
• NiCad FAQ file 
• NTE Electronics - Free Cross Ref
• Svetlana Products 
• Times Microwave Systems 
• Toroid Design - by Jack Ponton, GM0RWU 
• Transistor Cross Reference Database - over 40,000 transistors
• Unusual Diode FAQ The 

Construction Projects 

• 7N3WVM's Home Page for Homebrewers 
• 73 kHz phasing transceiver 
• Ham Radio Homebrew Projects on the Net 
• Amateur Radio QRP Projects 
• Amateur Radio Receivers by David White
• Amateur Repeater Builders Home Page 
• Amplifiers 
• Broadcast-Quality FM Transmitter Designs 
• CI-V Interface for Icom Radios 
• Construction Projects - by John Seboldt, K0JD 
• COR Hangtimer - simple controller to key a transmitter
• Doppler Direction Finder - David Robbins, K1TTT
• Electronic Cookbook Archive 
• Electrical Engineering Circuits Archive 
• Forrest Cooks Electronic Circuits 
• Getting the most from your repeater system 
• Glowbug Bibliography - Tube Projects
• Glowbug Transmitter - by KC5VQL
• Homebrew Corner from G3YCC 
• ITU REC-V.36 Descrambler - For EMWIN
• JF1OZL QRP,Hand Made Amateur Radio 
• K9KLT Power Line QRN Killer 
• KD9JQ Homebrewing Info - Nice site
• KnightSMiTe - Surface Mount tranceiver kit
• Lessons on Radio Design by AB4BE
• Mrx-40 - Mini 40 Meter Receiver Kit 
• Miniature Weather Satellite Data Receiver 
• NA4G's homebrew firebottle gear.... 
• Norcal 38 Special - 30 Meter  Transceiver 
• Norcal 49er - 40 Meter QRP Rig
• Norcal 49er Info from Knightlites 
• Optimist 80 - a QRPp DSB rig for 80 meters by SM6LKM. 
• Rainbow Tuner - QRP  Tuner/SWR Bridge
• The Tuna Tin 2  - QRP 40M Transmitter
• PIXIE 2 TRANSCEIVER 
• Pixie2 Tips from WE6W 
• Projects from the Minnesota QRP Society 
• R2/T2 Construction Projects By K0JD 
• Repeater Builders Information Page 
• ScQRPion Visual SWR Indicator 
• Simple Radio Transmitters and Receivers -
• A Simple SWR Meter For QRP Levels - 
• SMIRK Technical List -  6 Meter Stuff
• SM0VPO'S Collection Of Projects 
• Tech Topics from the Northwest ARS 
• Valentin Gvozdev's Home Brew Page 
• VK6FKB's DSB Project 
• W8EDU Ham Radio Projects page 
• WB4QXE - Ham Homebrew page
• QRP Projects collection of WE6W

RFI / Interference 

• INTERFERENCE HANDBOOK - From the FCC
• Reducing RFI with Ferrite 

Tube Information 

• Blue Glow In Tubes FAQ 
• RCA Tube Data 
• Tubes Audio - Includes Spice Models
• Tube Data - Audio 
• Tube Data Guide - From Trevor Gale
• Tube data sheets 
• Tube data compiled by SM5GNN 
• Tube Directory, The - Italy, many foreign tubes
• Tube Gallery - Japan
• Tube Interchangeability guide - Hong Kong 
• Tube Lore - From the Tube Dude!
• Tube Substitution and Characteristics Guide 
• Tube Special Purpose to JAN Cross Ref 
• Tubes that glow - Mister Valve 
• Tube VT to HAN/RMA/EIA Types Cross Ref 
• Vacuum Tube Page 

Misc 

• Tunekit® - Filter Tuning Kit for Windows
• CircuitMaker - Professional, Easy-To-Use Schematic Design