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37-690 Bass Choke Replacement
morzh
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#4

3 hours ago
Yes, I just had to deal with that while repairing the 37-604 Philco. Exactly that value choke was gone. And the current was borderline.
So I used a smaller one with larger current, padding it with a resistor.
However, mine was the DC filter, whereas yours is an audio filter, so you need more precision.
Mine was 32-7569, which is same as yours (maybe different dims) - 65H, 10mA.

I used 154E, 2hich is 20H, 20mA.
There is also 30H 600 Ohm one, 157G. Two in series plus a 1k resistor. Those are small chokes too.

https://www.mouser.com/datasheet/2/177/1...736947.pdf
https://www.mouser.com/c/passive-compone...&m=Hammond
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RE: 37-690 Bass Choke Replacement - by morzh - 3 hours ago



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