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


 

Drake used the bottom only of tube shields on some tubes. Makes it look like the shield is missing but its not. The lower part of the shield provides adequate shielding to the leads to the socket without causing the tubes to run hot.

On 1/23/2025 1:12 PM, Dave KD5FX via groups.io wrote:
Yes, using PTT after a tune. AND I swapped the 12BY7 with a spare I had on hand. I did notice the tube doesn't have a tube shield on it. Would that cause a problem like this?
Dave
--
Richard Knoppow
Los Angeles
WB6KBL
SKCC 19998

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