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Heath-Zenith (Heathkit) Frequency Counter Model SM-2420
captainclock1988
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City: Elkhart State, Province, Country: Indiana
#10

05-06-2020, 07:10 PM
Quote:If you look at the schematic for the SG-8, there is a connection in the tank circuit of the RF OSC that has a common connection with the AF mod output tube, 6C4.  I'd be looking for a cold solder joint at that connection, or an error.


Hey Kim, I think I found the problem, take a look at the picture below and tell me what you think.

   
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RE: Heath-Zenith (Heathkit) Frequency Counter Model SM-2420 - by captainclock1988 - 05-06-2020, 07:10 PM



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  1. The PHILCO Phorum
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