The Engineering Dept at WB4IUY

I've been building,repairing,restoring, and/or collecting amateur radio equipment since age 14. In the relm of technical interests, radio has always been my first "love". In 1974, with the help of my dad, I began an adventure that is still going strong and is of more interest than ever to me. The following are pictures of my workbenches and various projects I currently have under way.

My workbench is taylored more towards analog/RF repair, with the ability to generate in range of 1 ghz synthesized or 40 ghz analog multiplied. RF Measurements and analysis to 40 ghz are possible, counting to > 1 ghz, DC or AC to approx 50 KV.

Like most facilities, the Engineering Staff at WB4IUY is constantly within a state of "flux" and consequently may routinely change in appearance and/or opinion. Your milage may vary.

• Polarad, Tecktronix, and Heath scopes
  
• Microwave sig gen, Lambda DC supply, DVM.
  
• Polarad 40 ghz Spectrum Analyzer
  
• HP Scope and "Scopemobile"
  
• Substitution boxes and Bird RF power hardware
  
• Hicock Tube tester
  
• Microwave pwr meter, Diawa cross needle power meters
  
• Variable DC supply, Spectrum Analyzer, Service monitor, Frequency counter and prescaler,
  

Here's a homebrew Repeater Controller that I designed. It's purely analog, and provides 20 seconds of voice memory for ID's and messages; configurable courtesy tone generator; pre-tone, tone duration, timeout and hang timers; buffered COS and PTT connections as well as on-board audio gating. This was one of those "engineered-on-the-fly" projects, hi!

This is a set of UHF Duplexers that I just finished modifying. They were orininally used in another service. I disassembled these and modified the internals to move them into the UHF 70cm amateur band. These are set up as "band pass" cavaties.

This is a set of 220 Duplexers that I just finished modifying. They were orininally used in another service. I also disassembled these and modified the internals to move them into the UHF 1.25m amateur band. These are set up as "band pass" cavaties.

Here are the tubes for my new HF Amplifier project. The big tubes are 4-1000's, and that's what I'm using in my new amp. There is a 3-500 in the picture to give a you a point of reference for the size of 4-1000's. They are beautiful tubes!