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1. [Amps] GS35B Idle Current drifting up. (score: 1): Author: Paul Baldock <paul@paulbaldock.com>; Date: Wed, 18 Dec 2013 11:48:07 -0800; I've been running a GS35B for a year or so. Initially with B+ at 4KV I had the bias voltage set at 30V and an idle current of 200mA. The idle current has been slowly drifting up over time. Now it tak; /archives//html/Amps/2013-12/msg00133.html (7,814 bytes)
2. Re: [Amps] GS35B Idle Current drifting up. (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Thu, 19 Dec 2013 09:47:46 -0500; Is that a real 50V at the tube or is there a leaky filter or other cap in the circuit? Or a solder joint in the filament choke, socket, etc adding resistance? Carl KM1H I've been running a GS35B for; /archives//html/Amps/2013-12/msg00135.html (9,377 bytes)
3. Re: [Amps] GS35B Idle Current drifting up. (score: 1): Author: Paul Baldock <paul@paulbaldock.com>; Date: Thu, 19 Dec 2013 08:37:03 -0800; It's a real 50V - Paul Carl KM1H I've been running a GS35B for a year or so. Initially with B+ at 4KV I had the bias voltage set at 30V and an idle current of 200mA. The idle current has been slowly; /archives//html/Amps/2013-12/msg00137.html (9,562 bytes)
4. Re: [Amps] GS35B Idle Current drifting up. (score: 1): Author: Paul Baldock <paul@paulbaldock.com>; Date: Fri, 20 Dec 2013 12:58:22 -0800; I don't know much about the inside of tubes, but it seems to me that if the grid was getting smaller then it would take a large negative voltage to stop those electrons getting to the plate. The real; /archives//html/Amps/2013-12/msg00143.html (7,518 bytes)
5. Re: [Amps] GS35B Idle Current drifting up. (score: 1): Author: Steve Thompson <g8gsq72@gmail.com>; Date: Sat, 21 Dec 2013 17:21:32 +0000; I opened and photographed a dead one a while ago. The pictures are here: http://gs35b.com/gs35b/bang.html Would the drift happen if a tiny bit of cathode material evaporated and migrated to the grid?; /archives//html/Amps/2013-12/msg00144.html (6,719 bytes)
6. Re: [Amps] GS35B Idle Current drifting up. (score: 1): Author: "Gary Smith" <Gary@ka1j.com>; Date: Sat, 21 Dec 2013 15:44:11 -0500; Nice clear photos. What would have made that happen? And how to best avoid it from happening to... lets say, my amp? Gary KA1J -- This email is free from viruses and malware because avast! Antivirus; /archives//html/Amps/2013-12/msg00145.html (7,654 bytes)
7. Re: [Amps] GS35B Idle Current drifting up. (score: 1): Author: Steve Thompson <g8gsq72@gmail.com>; Date: Sat, 21 Dec 2013 22:24:00 +0000; The tube was one offered to me for the cost of postage, I don't know its history. It showed no signs of life and high hipot leakage so I opened it up. I think the photos were taken with my first digi; /archives//html/Amps/2013-12/msg00146.html (8,153 bytes)

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