[GreenKeys] 5763 one-tube TU

[Jim Pruitt]

I am trying to find the TU that was in the early 70's handbook and used 
TV width coils.  I built that when I bought my 32KSR from Van. I only 
made one mistake building it.  Seems ARRL did not warn me that lack of 
high voltage would stop a tube converter from working! It also took me 
quite a while to figure out that to key the loop and get fsk voltage I 
had to add a keyer stage.  I used that converter for a couple of years 
then bought a ST6 kit and used that for several years.

Thank you for the memories.

Jim Pruitt
WA7DUY

On 5/24/2017 8:46 PM, jgibbs at telus.net wrote:
> Reminds me of my first TU using the W2PAT design.. about 1969-70 era  which used TV width coils padded down to audio
> frequencies for the input filters.   Can't find the circuit diagram and not sure what tubes I used,  maybe 12AT7
> and 6V6.
>