Help with a Philco 89B

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Help with a Philco 89B

Steve Davis
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07-26-2015, 05:11 PM

Quote:Oh - one more question... why do they run the two 0.015uF line filter caps permanently connected to the mains and not on the radio side of the on/off switch? I'm considering moving them to the other side of the switch... any advice on that would be appreciated.

The only reason that I can see for putting the line filter capacitors ahead of the switch is, when the switch is off, the voltage on the chassis will be limited to one half the line voltage. If the line capacitors were connected after the switch, with the switch off, the chassis will at zero or line voltage, depending on which way the plug is inserted into the receptacle. If you are installing a three wire cord, there would be no advantage for the caps to be ahead of the switch.

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Messages In This Thread

Help with a Philco 89B - by kiwi_steve - 07-26-2015, 03:07 PM

RE: Help with a Philco 89B - by kiwi_steve - 07-26-2015, 03:34 PM

RE: Help with a Philco 89B - by Steve Davis - 07-26-2015, 05:11 PM

RE: Help with a Philco 89B - by morzh - 07-26-2015, 09:54 PM

RE: Help with a Philco 89B - by klondike98 - 07-26-2015, 10:02 PM

RE: Help with a Philco 89B - by kiwi_steve - 07-27-2015, 07:44 AM

RE: Help with a Philco 89B - by kiwi_steve - 07-27-2015, 07:59 AM

RE: Help with a Philco 89B - by morzh - 07-27-2015, 10:44 AM

RE: Help with a Philco 89B - by kiwi_steve - 07-27-2015, 02:33 PM

RE: Help with a Philco 89B - by kiwi_steve - 07-27-2015, 02:40 PM

RE: Help with a Philco 89B - by morzh - 07-27-2015, 03:14 PM

RE: Help with a Philco 89B - by kiwi_steve - 07-27-2015, 05:42 PM

RE: Help with a Philco 89B - by kiwi_steve - 07-28-2015, 02:51 AM

RE: Help with a Philco 89B - by sam - 07-28-2015, 03:00 AM

RE: Help with a Philco 89B - by kiwi_steve - 07-28-2015, 05:18 AM

RE: Help with a Philco 89B - by morzh - 07-28-2015, 09:49 AM

RE: Help with a Philco 89B - by kiwi_steve - 07-29-2015, 08:06 AM

RE: Help with a Philco 89B - by GarySP - 07-29-2015, 08:35 AM

RE: Help with a Philco 89B - by kiwi_steve - 07-29-2015, 05:10 PM

RE: Help with a Philco 89B - by kiwi_steve - 08-01-2015, 07:48 PM

RE: Help with a Philco 89B - by kiwi_steve - 08-30-2015, 12:16 AM

RE: Help with a Philco 89B - by kiwi_steve - 08-30-2015, 01:11 AM

RE: Help with a Philco 89B - by kiwi_steve - 08-30-2015, 02:27 AM

RE: Help with a Philco 89B - by kiwi_steve - 08-30-2015, 08:54 PM

RE: Help with a Philco 89B - by kiwi_steve - 09-02-2015, 06:39 PM

RE: Help with a Philco 89B - by Arran - 09-03-2015, 01:03 AM

RE: Help with a Philco 89B - by kiwi_steve - 09-03-2015, 04:28 PM

RE: Help with a Philco 89B - by kiwi_steve - 09-22-2015, 05:18 PM

RE: Help with a Philco 89B - by kiwi_steve - 10-20-2015, 12:19 AM

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