Help with a Philco 89B

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Help with a Philco 89B

morzh
Odobenus rosmarus

Posts: 15,825
Threads: 554
Joined: Oct 2011
City: Jackson, NJ

07-26-2015, 09:54 PM

I am not sure those were the reasons. I think it was simply to save the switch as every time you connect the switch you would create an arc charging caps at zero volts. But when the caps are connected you connect an inductance and it is benign.
The fact the caps might stay charged was disregarded due to low overall capacitance (7.5nF).

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.

(This post was last modified: 07-26-2015, 09:57 PM by morzh.)

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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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