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Re: TR-4C Problems with 28.0 and 28.5 bands


 

Look carefully for any signs of rework around the circuit.?

I seem to recall that you said that some switch contacts looked ¡°funny¡±. Messing with switch contacts can ruin them. Check the resistances through the switch contacts for each of the two bands.?

73,

Steve Wedge, W1ES

Time flies like an arrow. Fruit flies like a banana.


Sent from for iOS


On Fri, Jan 17, 2025 at 20:37, Dave KD5FX via groups.io <land.dave@...> wrote:
All tubes tested good except for V2 and V17. I replaced both of them with 'new' ones I got from vacuumtubes.com.
73, Dave KD5FX
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