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Re: Replacing T4XC Finals?


 

Film resistors will work fine. Use the same coils.

The final tubes should be 6JB6's

Steve Wedge, W1ES

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

Sent with secure email.

On Thursday, January 2nd, 2025 at 3:30 PM, Jay W6CJ via groups.io <lastradioman@...> wrote:

I looked into the PA I damaged when a faulty key put the radio in transmit:
  • One of the parasitic choke leads popped out of the resistor.
  • One of the 1-watt cathode resistors is cracked and both read higher than 15 ohms.
  • No more than 75mA when tuning.
I'm thinking of replacing the 6GE5s; both cathode resistors with 2-watt film resistors; both parasitic chokes; possibly replacing the 12BY7 driver tube.

Appreciate any expert advice on where else to check and what else to replace.

Thanks & 73
Jay
W6CJ







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