Avo Valve Tester

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Avo Valve Tester

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Sparks

Senior Transmitter Engineer

Posts: 319
Reputation: 1
Location: Lancashire

#91

26-10-2016, 03:50 PM

Well, I don't know how the valve tester works (apart from a vague idea) although I know what the meter does. I tried measuring with a DMM and an AVO 8, and none of it made sense. But nothing so far has explained why they describe an ac voltage as being positive or negative. There is no half-wave about it, it is coming straight out of the transformer!
Bob

http://www.miniatureships.blogspot.com

Quote

Messages In This Thread

Avo Valve Tester - by Sparks - 11-10-2016, 11:43 AM

RE: Avo Valve Tester - by pwdrive - 11-10-2016, 12:04 PM

RE: Avo Valve Tester - by Sparks - 11-10-2016, 12:10 PM

RE: Avo Valve Tester - by pwdrive - 11-10-2016, 12:18 PM

RE: Avo Valve Tester - by Sparks - 11-10-2016, 12:29 PM

RE: Avo Valve Tester - by pwdrive - 11-10-2016, 12:32 PM

RE: Avo Valve Tester - by raylec - 11-10-2016, 01:04 PM

RE: Avo Valve Tester - by Excessive Leakage - 11-10-2016, 01:04 PM

RE: Avo Valve Tester - by ppppenguin - 11-10-2016, 01:41 PM

RE: Avo Valve Tester - by pwdrive - 11-10-2016, 01:53 PM

RE: Avo Valve Tester - by Sparks - 11-10-2016, 02:02 PM

RE: Avo Valve Tester - by ppppenguin - 11-10-2016, 02:18 PM

RE: Avo Valve Tester - by Murphyv310 - 11-10-2016, 02:48 PM

RE: Avo Valve Tester - by Sparks - 11-10-2016, 03:02 PM

RE: Avo Valve Tester - by pwdrive - 11-10-2016, 03:12 PM

RE: Avo Valve Tester - by Sparks - 11-10-2016, 04:00 PM

RE: Avo Valve Tester - by pwdrive - 11-10-2016, 04:20 PM

RE: Avo Valve Tester - by Sparks - 11-10-2016, 04:13 PM

RE: Avo Valve Tester - by Sparks - 11-10-2016, 04:22 PM

RE: Avo Valve Tester - by Sparks - 11-10-2016, 04:47 PM

RE: Avo Valve Tester - by Murphyv310 - 11-10-2016, 04:51 PM

RE: Avo Valve Tester - by pwdrive - 11-10-2016, 04:52 PM

RE: Avo Valve Tester - by Mike Watterson - 11-10-2016, 04:48 PM

RE: Avo Valve Tester - by pwdrive - 11-10-2016, 04:50 PM

RE: Avo Valve Tester - by Sparks - 11-10-2016, 04:58 PM

RE: Avo Valve Tester - by Excessive Leakage - 11-10-2016, 05:31 PM

RE: Avo Valve Tester - by Sparks - 11-10-2016, 07:27 PM

RE: Avo Valve Tester - by Excessive Leakage - 11-10-2016, 09:30 PM

RE: Avo Valve Tester - by Refugee - 11-10-2016, 11:11 PM

RE: Avo Valve Tester - by Sparks - 12-10-2016, 06:35 AM

RE: Avo Valve Tester - by pwdrive - 12-10-2016, 07:19 AM

RE: Avo Valve Tester - by Sparks - 12-10-2016, 07:50 AM

RE: Avo Valve Tester - by pwdrive - 12-10-2016, 08:45 AM

RE: Avo Valve Tester - by Sparks - 12-10-2016, 09:05 AM

RE: Avo Valve Tester - by pwdrive - 12-10-2016, 09:16 AM

RE: Avo Valve Tester - by Sparks - 12-10-2016, 11:27 AM

RE: Avo Valve Tester - by pwdrive - 12-10-2016, 12:19 PM

RE: Avo Valve Tester - by Sparks - 12-10-2016, 03:47 PM

RE: Avo Valve Tester - by pwdrive - 12-10-2016, 04:01 PM

RE: Avo Valve Tester - by Refugee - 12-10-2016, 04:32 PM

RE: Avo Valve Tester - by Sparks - 12-10-2016, 04:40 PM

RE: Avo Valve Tester - by Terry - 12-10-2016, 05:09 PM

RE: Avo Valve Tester - by Mike Watterson - 12-10-2016, 05:08 PM

RE: Avo Valve Tester - by Sparks - 12-10-2016, 05:31 PM

RE: Avo Valve Tester - by pamphonica - 12-10-2016, 09:37 PM

RE: Avo Valve Tester - by ppppenguin - 12-10-2016, 10:00 PM

RE: Avo Valve Tester - by pamphonica - 12-10-2016, 10:09 PM

RE: Avo Valve Tester - by pwdrive - 13-10-2016, 06:44 AM

RE: Avo Valve Tester - by pwdrive - 13-10-2016, 07:09 AM

RE: Avo Valve Tester - by Sparks - 13-10-2016, 09:34 AM

RE: Avo Valve Tester - by pwdrive - 13-10-2016, 10:03 AM

RE: Avo Valve Tester - by Sparks - 13-10-2016, 11:46 AM

RE: Avo Valve Tester - by pwdrive - 13-10-2016, 11:51 AM

RE: Avo Valve Tester - by AlanBeckett - 13-10-2016, 11:57 AM

RE: Avo Valve Tester - by Sparks - 13-10-2016, 12:02 PM

RE: Avo Valve Tester - by Sparks - 15-10-2016, 02:56 PM

RE: Avo Valve Tester - by Craig - 16-10-2016, 02:10 PM

RE: Avo Valve Tester - by Sparks - 16-10-2016, 02:50 PM

RE: Avo Valve Tester - by pwdrive - 16-10-2016, 03:05 PM

RE: Avo Valve Tester - by pwdrive - 16-10-2016, 03:56 PM

RE: Avo Valve Tester - by Sparks - 16-10-2016, 04:46 PM

RE: Avo Valve Tester - by pwdrive - 16-10-2016, 04:52 PM

RE: Avo Valve Tester - by kalee99 - 16-10-2016, 05:31 PM

RE: Avo Valve Tester - by Sparks - 17-10-2016, 08:39 AM

RE: Avo Valve Tester - by pwdrive - 17-10-2016, 08:57 AM

RE: Avo Valve Tester - by Sparks - 17-10-2016, 09:24 AM

RE: Avo Valve Tester - by pwdrive - 17-10-2016, 09:31 AM

RE: Avo Valve Tester - by Sparks - 17-10-2016, 12:41 PM

RE: Avo Valve Tester - by Sparks - 17-10-2016, 01:03 PM

RE: Avo Valve Tester - by pwdrive - 17-10-2016, 01:18 PM

RE: Avo Valve Tester - by Sparks - 17-10-2016, 02:53 PM

RE: Avo Valve Tester - by pwdrive - 17-10-2016, 03:09 PM

RE: Avo Valve Tester - by Mike Watterson - 17-10-2016, 04:34 PM

RE: Avo Valve Tester - by Sparks - 18-10-2016, 07:06 AM

RE: Avo Valve Tester - by Mike Watterson - 18-10-2016, 08:50 AM

RE: Avo Valve Tester - by Sparks - 18-10-2016, 11:26 AM

RE: Avo Valve Tester - by Mike Watterson - 18-10-2016, 01:25 PM

RE: Avo Valve Tester - by Sparks - 18-10-2016, 02:08 PM

RE: Avo Valve Tester - by Mike Watterson - 18-10-2016, 04:44 PM

RE: Avo Valve Tester - by Sparks - 18-10-2016, 06:24 PM

RE: Avo Valve Tester - by pwdrive - 18-10-2016, 06:38 PM

RE: Avo Valve Tester - by Sparks - 18-10-2016, 06:45 PM

RE: Avo Valve Tester - by pwdrive - 18-10-2016, 06:51 PM

RE: Avo Valve Tester - by pwdrive - 18-10-2016, 07:14 PM

RE: Avo Valve Tester - by Sparks - 26-10-2016, 02:04 PM

RE: Avo Valve Tester - by Terry - 26-10-2016, 02:39 PM

RE: Avo Valve Tester - by pwdrive - 26-10-2016, 03:39 PM

RE: Avo Valve Tester - by Sparks - 26-10-2016, 03:42 PM

RE: Avo Valve Tester - by Mike Watterson - 26-10-2016, 03:45 PM

RE: Avo Valve Tester - by pwdrive - 26-10-2016, 03:47 PM

RE: Avo Valve Tester - by Sparks - 26-10-2016, 03:50 PM

RE: Avo Valve Tester - by Sparks - 26-10-2016, 03:52 PM

RE: Avo Valve Tester - by pwdrive - 26-10-2016, 04:02 PM

RE: Avo Valve Tester - by Terry - 26-10-2016, 04:06 PM

RE: Avo Valve Tester - by Sparks - 26-10-2016, 04:16 PM

RE: Avo Valve Tester - by pwdrive - 26-10-2016, 05:14 PM

RE: Avo Valve Tester - by Mike Watterson - 26-10-2016, 09:16 PM

RE: Avo Valve Tester - by Sparks - 27-10-2016, 07:07 AM

RE: Avo Valve Tester - by ppppenguin - 27-10-2016, 08:30 AM

RE: Avo Valve Tester - by Mike Watterson - 27-10-2016, 10:29 AM

RE: Avo Valve Tester - by Sparks - 27-11-2016, 03:32 PM

RE: Avo Valve Tester - by Mike Watterson - 27-11-2016, 04:49 PM

RE: Avo Valve Tester - by Sparks - 27-11-2016, 05:21 PM

RE: Avo Valve Tester - by pwdrive - 27-11-2016, 05:59 PM

RE: Avo Valve Tester - by Mike Watterson - 27-11-2016, 05:26 PM

RE: Avo Valve Tester - by Sparks - 27-11-2016, 05:41 PM

RE: Avo Valve Tester - by Mike Watterson - 27-11-2016, 05:46 PM

RE: Avo Valve Tester - by Sparks - 27-11-2016, 05:57 PM

RE: Avo Valve Tester - by pwdrive - 27-11-2016, 06:36 PM

RE: Avo Valve Tester - by Mike Watterson - 27-11-2016, 08:13 PM

RE: Avo Valve Tester - by Sparks - 27-11-2016, 08:27 PM

RE: Avo Valve Tester - by pwdrive - 27-11-2016, 08:44 PM

RE: Avo Valve Tester - by pwdrive - 28-11-2016, 08:17 AM

RE: Avo Valve Tester - by Sparks - 28-11-2016, 08:44 AM

RE: Avo Valve Tester - by Sparks - 29-11-2016, 03:48 PM

RE: Avo Valve Tester - by Mike Watterson - 29-11-2016, 06:47 PM

RE: Avo Valve Tester - by Sparks - 29-11-2016, 07:06 PM

RE: Avo Valve Tester - by Mike Watterson - 30-11-2016, 09:37 AM

RE: Avo Valve Tester - by pwdrive - 29-11-2016, 07:13 PM

RE: Avo Valve Tester - by Sparks - 29-11-2016, 07:26 PM

RE: Avo Valve Tester - by Sparks - 30-11-2016, 10:29 AM

RE: Avo Valve Tester - by Mike Watterson - 30-11-2016, 11:43 AM

RE: Avo Valve Tester - by Sparks - 30-11-2016, 12:24 PM

RE: Avo Valve Tester - by Mike Watterson - 30-11-2016, 02:33 PM

RE: Avo Valve Tester - by Sparks - 30-11-2016, 03:16 PM

RE: Avo Valve Tester - by pwdrive - 30-11-2016, 03:49 PM

RE: Avo Valve Tester - by Sparks - 30-11-2016, 04:44 PM

RE: Avo Valve Tester - by Mike Watterson - 30-11-2016, 06:26 PM

RE: Avo Valve Tester - by Sparks - 01-12-2016, 08:00 AM

RE: Avo Valve Tester - by Sparks - 02-12-2016, 03:27 PM

RE: Avo Valve Tester - by pwdrive - 02-12-2016, 03:35 PM

RE: Avo Valve Tester - by Sparks - 02-12-2016, 03:47 PM

RE: Avo Valve Tester - by Mike Watterson - 02-12-2016, 06:35 PM

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