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Philco Model 66 120hz hum in speaker
#16

Well, I have discovered that the choke is probably the issue after all. Why, because what I thought was a new Stancor C-1709 does not measure, resistance or inductance, as is should. So some other type of new choke was in the box. I probably should have verified its inductance before I used it, so lesson learned here. And, as Morzh pointed out, even if it was the correct choke in the box, the C-1709 is too small. So, I'm going to search for a choke with specs as close to the Philco part as possible, and add a resistor in series if needed.


Messages In This Thread
RE: Philco Model 66 60hz hum in speaker - by Chas - 03-27-2020, 11:41 PM
RE: Philco Model 66 120hz hum in speaker - by dr.delco - 03-28-2020, 01:16 PM



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