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Total 4 documents matching your query.

1. [Amps] LK-500 ZB (score: 1): Author: mike stokes <mike9v@gmail.com>; Date: Mon, 13 Apr 2015 15:25:58 -0400; Hello I have a Amp Supply LK-500 ZB and yesterday it made a big bang and blew both fuses. Now when I power it up the meter says it is drawing about 300 mA while sitting idle. I have performed a visua; /archives//html/Amps/2015-04/msg00091.html (6,703 bytes)
2. Re: [Amps] LK-500 ZB (score: 1): Author: "Jim W7RY" <w7ry@centurytel.net>; Date: Mon, 13 Apr 2015 20:52:33 -0700; Sounds like a shorted tube. Is there negative grid current? 73 Jim W7RY Hello I have a Amp Supply LK-500 ZB and yesterday it made a big bang and blew both fuses. Now when I power it up the meter says; /archives//html/Amps/2015-04/msg00094.html (7,657 bytes)
3. Re: [Amps] LK-500 ZB (score: 1): Author: "Carl" <km1h@jeremy.qozzy.com>; Date: Tue, 14 Apr 2015 10:40:18 -0400; A shorted tube wouldnt be drawing positive plate current. Sounds like a gas arc took out the zener and the amp is now zero biased. Look for a glow in the tubes when in standby mode, maybe all they ne; /archives//html/Amps/2015-04/msg00098.html (9,395 bytes)
4. [Amps] LK-500 ZB (score: 1): Author: "Jim Thomson" <jim.thom@telus.net>; Date: Tue, 14 Apr 2015 21:28:16 -0700; A shorted tube wouldnt be drawing positive plate current. Sounds like a gas arc took out the zener and the amp is now zero biased. Look for a glow in the tubes when in standby mode, maybe all they ne; /archives//html/Amps/2015-04/msg00106.html (8,213 bytes)

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