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Philco Model 66 120hz hum in speaker
03-27-2020, 11:41 PM
60hz hum? Should be 120hz. If actually 60 hz could be the 80 is out of balance... Were any of the wires to the output transformer swapped? That would defeat the hum bucking system.. There could be heater cathode leakage in the 75...
GL Chas Pliny the younger “nihil novum nihil varium nihil quod non semel spectasse sufficiat”
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Messages In This Thread
Philco Model 66 120hz hum in speaker - by dr.delco - 03-27-2020, 05:39 PM
RE: Philco Model 66 60hz hum in speaker - by morzh - 03-27-2020, 07:13 PM
RE: Philco Model 66 60hz hum in speaker - by klondike98 - 03-27-2020, 08:25 PM
RE: Philco Model 66 60hz hum in speaker - by morzh - 03-27-2020, 08:31 PM
RE: Philco Model 66 60hz hum in speaker - by David - 03-27-2020, 08:39 PM
RE: Philco Model 66 60hz hum in speaker - by Nathan Slingerland - 03-27-2020, 09:33 PM
RE: Philco Model 66 60hz hum in speaker - by morzh - 03-27-2020, 09:43 PM
RE: Philco Model 66 60hz hum in speaker - by dr.delco - 03-27-2020, 10:14 PM
RE: Philco Model 66 60hz hum in speaker - by morzh - 03-27-2020, 11:31 PM
RE: Philco Model 66 60hz hum in speaker - by Chas - 03-27-2020, 11:41 PM
RE: Philco Model 66 60hz hum in speaker - by Radioroslyn - 03-28-2020, 09:37 AM
RE: Philco Model 66 60hz hum in speaker - by morzh - 03-28-2020, 09:54 AM
RE: Philco Model 66 120hz hum in speaker - by Nathan Slingerland - 03-28-2020, 12:08 PM
RE: Philco Model 66 120hz hum in speaker - by dr.delco - 03-28-2020, 12:10 PM
RE: Philco Model 66 120hz hum in speaker - by morzh - 03-28-2020, 12:53 PM
RE: Philco Model 66 120hz hum in speaker - by dr.delco - 03-28-2020, 01:16 PM
RE: Philco Model 66 120hz hum in speaker - by Too poor to retire - 03-28-2020, 02:04 PM
RE: Philco Model 66 120hz hum in speaker - by morzh - 03-28-2020, 03:14 PM
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