Recent content by cheddarspaz2

Sigma-4 / Tagra BT-104 (Swiss Made) I re-acquired an antenna sold to a friend many years ago that came down in a bad storm. While cleaning, repairing and restoring the "thought to be" sigma-4 actually had "Tagra" cast into the aluminum base. Turned out to be the "tagra BT-104. It's most...

Thanks Shockwave. I should have thought of the DC actuator motor. After focusing on that and the fact that the un-shielded wire to the thermostat was acting as a radiator turned out to be exactly the problem. I put 11 ferrite cores on all wiring surrounding the DC motor and replaced the...

RFI Continues The furnace motor is indeed variable speed. I have contacted both the manufacturer and the company who installed & services my new furnace. Both replied without being able to assist, stating there is no such filtering kit available and suggested I go to R.S. for a filter...

Thought this was a common problem, but couldn't find any similar posts. Each time my furnace or central air kicks on, I get a strong (S9) signal on all HF bands (mostly AM / FM modes); that wipes out most stations from being heard. I tried placing a couple ferrite cores on the AC supply...

I bought one a couple years ago and found the lense covering the frequency counter was out of place. No biggie, fixed it myself. Tested it out; and seemed to work great, no drift and boxed it back up preparing to move. Now I find the channel selector has an LED that won't stay lit. I'm a...

I cracked one of my hubs and welded it, but decided to cast some spares of the original design. I've made 2 pair so far and they turned out flawlessly. They look like a brand new version of the original "MR101" hub.