TV7 Bias pot
 

Hello everybody,
I am looking for the TV7 R129 Bias pot, mine was open and collapsed when
inspected. It is a 3K ohm wire-wound with a special taper, approximately 25
per cent resistance at half rotation. Tried to use a linear 3K wire, bias
voltage is fine at 50 but twice as necessary at 22, the most common range in
use. Any suggestion?
Thanks, Francesco Sartorello