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Philco 38-12
#25

Okay, removing the electromagnetic speaker and replacing it with a pm speaker. For field coil, I used a 1500 ohm-10 watt resistor. New speaker hums. Replaced 12 mfd power cap with a 16--less hum but still bad. Replaced the 16 mfd with 20 mfd. Less hum still, but unacceptable hum level still. What should I try next. Thanks for your comments!!!


Messages In This Thread
Philco 38-12 - by radiola - 05-02-2011, 08:07 PM
Re: Philco 38-12 - by 7estatdef - 05-02-2011, 09:16 PM
Re: Philco 38-12 - by radiola - 05-02-2011, 10:19 PM
Re: Philco 38-12 - by 7estatdef - 05-02-2011, 11:20 PM
Re: Philco 38-12 - by radiola - 05-02-2011, 11:32 PM
Re: Philco 38-12 - by radiola - 05-03-2011, 01:33 AM
Re: Philco 38-12 - by 7estatdef - 05-03-2011, 06:24 AM
Re: Philco 38-12 - by radiola - 05-03-2011, 09:57 AM
Re: Philco 38-12 - by 7estatdef - 05-03-2011, 06:32 PM
Re: Philco 38-12 - by radiola - 05-03-2011, 08:58 PM
Re: Philco 38-12 - by 7estatdef - 05-03-2011, 09:48 PM
Re: Philco 38-12 - by radiola - 05-06-2011, 02:42 AM
Re: Philco 38-12 - by 7estatdef - 05-06-2011, 09:53 AM
Re: Philco 38-12 - by radiola - 05-06-2011, 06:02 PM
Re: Philco 38-12 - by 7estatdef - 05-06-2011, 07:43 PM
Re: Philco 38-12 - by radiola - 05-06-2011, 10:45 PM
Re: Philco 38-12 - by radiola - 05-07-2011, 04:04 PM
Re: Philco 38-12 - by 7estatdef - 05-07-2011, 04:21 PM
Re: Philco 38-12 - by radiola - 05-09-2011, 09:46 PM
Re: Philco 38-12 - by radiola - 05-15-2011, 05:27 PM
Re: Philco 38-12 - by radiola - 05-18-2011, 07:21 PM
Re: Philco 38-12 - by 7estatdef - 05-18-2011, 08:04 PM
Re: Philco 38-12 - by radiola - 05-18-2011, 10:11 PM
Re: Philco 38-12 - by 7estatdef - 05-18-2011, 10:54 PM
Re: Philco 38-12 - by radiola - 05-19-2011, 10:45 PM
Re: Philco 38-12 - by 7estatdef - 05-20-2011, 08:56 AM
Re: Philco 38-12 - by radiola - 05-20-2011, 05:26 PM
Re: Philco 38-12 - by 7estatdef - 05-20-2011, 08:04 PM
Re: Philco 38-12 - by radiola - 05-20-2011, 09:20 PM
Re: Philco 38-12 - by 7estatdef - 05-20-2011, 10:10 PM
Re: Philco 38-12 - by radiola - 05-21-2011, 11:23 PM



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