[TenTec] The Bug

[Ken Brown]

Hi Al and all,

> Also, I had to think about this for a minute -- I believe Ken is mixing his 
> transmitter models (not that it's any big deal, just brings back memories HI 
> HI!!) RCA used _4-400s_ in the BTA 1R transmitter at the small-town AM 
> station I worked for early in my broadcast career. 
>   

I may be wrong about the model number (thought it was BT1K), I am sure 
the old RCA TX at KVEC 920 kHz in San Luis Obispo used four 833As. It 
probably was a parallel pair, and not push-pull finals. Definitely 
push-pull modulator. They also had a newer TX (brand name I can't 
remember, NOT RCA) that used 4-400s. That one was purchased used from a 
station formerly on 1030 kHz (or something like that) and the "engineer" 
(not a General Class or better ham by the way) neglected to retune the 
second harmonic trap from 2060 kHz to 1840 kHz. They had quite a signal 
on 160 meters. In fact it exceeded FCC part 73 rules. They refused to do 
anything about it until I made measurements and sent the results to the FCC.

DE N6KB