[Heath] Heathkit HX 20 Revival

[Guy Giacopuzzi]

John,
Are you familiar with general trouble shooting?  First, I would check to 
see if you have plate voltage on the final...then,  look for plate 
current (any), then look for a dip when you tune...I'd have to see the 
schematic for anything further....watch the hv...it could be 
substantial, even in a lowly hx20...I've never owned an HX-20...is this 
the one with the singel 6146 final?
Guy,
WA6OQQ
On 4/27/2014 1:33 PM, John King wrote:
> I obtained a previously owned HX 20 MOBILE SSB and CW transmitter in good cosmetic condition. I have had it for about four years and decided to connect it to the matching AC supply, I built one from a kit in 1962 and used as a fixed station until I traded it off in 1967.Upon looking underneath the chassis of the one I have I can't believe I built one from a kit in 1962, while attending Graduate School at LSU. It was a great little transmitter.. I wouldn't attempt to do that today at almost 76 years of age.
>
> While familiarizing myself  with the HX 20 I changed it over to 6.3 vac filaments and connected it to the matching power supply. So far, all I get is in the spot position at 3.750 KC on a receiver across the room. The spot signal is strong but so far, I haven't been able to get any power out of the final or any reading on the relative output meter. I have it to a Bird watt meter and a Heathkit dummy load. If there are any HX20 folks who have one or are super familiar with the HX 20, I would appreciate  your input about what might be limiting the function to a VFO spotting signal,  I seem to remember that there were weak spots in the HX20 even though  it was a great little transmitter. I seem to remember a 6EA8 oscillator/miser that  might give problems. I know that the 6EA8
> has always been suspect in any rig.
>
> The benefit of your experience and knowledge of the HX 20 will be appreciated. This transmitter has been on the shelf for years.,
> but has been kept in a good environment. Thanks and 73, John, K5PGW
>
>
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