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Philco 645 Hum-m-m-m
Winky Dink
Member
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Posts: 122
Threads: 22
Joined: Dec 2013
City: Meridian, ID
#34

07-05-2014, 11:04 PM
One thing leads to another. I was checking some of the caps for leaks, shorts, and grounds; and I noticed that I've placed a 630v cap where the voltage is supposed to be 680v. I've run the set for quite a few hours with no problem. I suspect that the actual voltage is higher than 680v, but my multimeter doesn't go above 600v.

[Image: https://lh4.googleusercontent.com/-lNfXa...520645.jpg]

So I have two questions:
1. Should I replace the cap with one of higher voltage rating? The only solution I have on hand is to use two .2uF/630v caps in series. This is in a two-cap bakelite block, and I can squeeze three caps in if I'm really careful about shorts.
2. To check the actual voltage on the (specified) 680v line, can I put the transformer on 60 VAC from the variac and expect 340 volts?
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Messages In This Thread
Philco 645 Hum-m-m-m - by Winky Dink - 04-07-2014, 08:21 PM
RE: Philco 645 Hum-m-m-m - by gregb - 04-07-2014, 08:24 PM
RE: Philco 645 Hum-m-m-m - by Warren - 04-07-2014, 09:05 PM
RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-07-2014, 09:23 PM
RE: Philco 645 Hum-m-m-m - by Ron Ramirez - 04-08-2014, 05:31 AM
RE: Philco 645 Hum-m-m-m - by morzh - 04-08-2014, 10:10 AM
RE: Philco 645 Hum-m-m-m - by PAradiogeek - 04-08-2014, 11:16 AM
RE: Philco 645 Hum-m-m-m - by TA Forbes - 04-08-2014, 01:26 PM
RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-09-2014, 12:54 AM
RE: Philco 645 Hum-m-m-m - by TA Forbes - 04-09-2014, 10:58 AM
RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-09-2014, 01:45 PM
RE: Philco 645 Hum-m-m Fixed? - by Winky Dink - 04-12-2014, 10:43 AM
RE: Philco 645 Hum-m-m-m - by Steve Davis - 04-12-2014, 11:36 AM
RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-12-2014, 11:57 AM
RE: Philco 645 Hum-m-m-m - by TA Forbes - 04-12-2014, 12:04 PM
RE: Philco 645 Hum-m-m-m - by BrendaAnnD - 04-12-2014, 04:18 PM
RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-13-2014, 05:14 AM
RE: Philco 645 Hum-m-m-m - by morzh - 04-13-2014, 09:28 PM
RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-14-2014, 01:29 AM
RE: Philco 645 Hum-m-m-m - by morzh - 04-14-2014, 08:23 PM
RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-16-2014, 04:28 AM
RE: Philco 645 Hum-m-m-m - by morzh - 04-16-2014, 10:30 AM
RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-16-2014, 04:24 PM
RE: Philco 645 Hum-m-m-m - by TA Forbes - 04-16-2014, 04:43 PM
RE: Philco 645 Hum-m-m-m - by morzh - 04-16-2014, 05:05 PM
RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-17-2014, 04:54 AM
RE: Philco 645 Hum-m-m-m - by morzh - 04-17-2014, 08:54 AM
RE: Philco 645 Hum-m-m-m - by Winky Dink - 04-18-2014, 01:08 AM
RE: Philco 645 Hum-m-m-m - by Winky Dink - 07-02-2014, 11:20 PM
RE: Philco 645 Hum-m-m-m - by Arran - 07-03-2014, 12:21 AM
RE: Philco 645 Hum-m-m-m - by Winky Dink - 07-03-2014, 01:53 AM
RE: Philco 645 Hum-m-m-m - by morzh - 07-03-2014, 09:45 AM
RE: Philco 645 Hum-m-m-m - by Winky Dink - 07-04-2014, 12:37 AM
RE: Philco 645 Yet Another Question - by Winky Dink - 07-05-2014, 11:04 PM
RE: Philco 645 Hum-m-m-m - by morzh - 07-05-2014, 11:09 PM
RE: Philco 645 Hum-m-m-m - by Winky Dink - 07-06-2014, 01:57 AM
RE: Philco 645 Hum-m-m-m - by morzh - 07-06-2014, 08:58 AM
RE: Philco 645 Hum-m-m-m - by Winky Dink - 07-06-2014, 09:30 AM
RE: Philco 645 Hum-m-m-m - by morzh - 07-06-2014, 10:16 AM
RE: Philco 645 Hum-m-m-m - by Winky Dink - 07-07-2014, 08:04 PM



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