[AMRadio] Driver Xfmr

[Gary Schafer]

Hi Mike,

If it is the primary of the transformer that opened (usually is) you can 
still use it to get you buy. Just put a resistor in the plate of the 
audio driver tube, in place of the transformer primary. I think around 
10k 2 watt will work ok. Then couple the plate of the driver to the grid 
of one of the 1625s with a capacitor. Leave the secondary of the driver 
transformer hooked to both grids and bias as it was.
It will work as an auto transformer to couple audio into both tubes. 
Works fine! Although gain will be somewhat less than with the transformer.

Be sure to check to see what shorted to take out the transformer. Maybe 
the tube.

73
Gary  K4FMX


MIke Wells wrote:
> Hello,
> 
> I just lost the audio driver xfmr in my DX-100. I turned it on to warm up
> and a few minutes later the house filled with the familiar smell. Anyone
> have a parts unit or advise as where I might find a replacement?
> 
> Thanks
> Mike
> W0FD
> 
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