This is one of the reasons why I don¡¯t care to work on the R4C. I know space was a premium, but damn, getting to the bottom of most of those boards even to make voltage checks is a PITA!
mike wb8vge
The Heathkit Shop
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On Dec 20, 2024, at 3:28 PM, Evan via <
k9sqg@...> wrote:
Jay,
You might want to id which of the three production runs/models you have in case this board is one of the "variables".
73,
Evan, K9SQG
Looking for a PC board foil diagram that shows the connections to, and around the R55 bias pot.??
Thanks & 73
Jay
W6CJ
