- 1. Re: [Amps] Hi Pot Test Procedure? (score: 1)
- Author: "B Osburn" <plantrunner5@msn.com>
- Date: Sun, 12 Feb 2012 18:51:58 -0700
- Since you are just checking the integrity of the vacuum I just did anode to cathode. RLM may say different. Brad AB0YD -- Original Message -- From: Gary K9GS<mailto:garyk9gs@wi.rr.com> To: AMPS Maili
- /archives//html/Amps/2012-02/msg00118.html (8,280 bytes)
- 2. Re: [Amps] Hi Pot Test Procedure? (score: 1)
- Author: "B Osburn" <plantrunner5@msn.com>
- Date: Sun, 12 Feb 2012 19:24:43 -0700
- Testing Components The basic technique behind non-destructive voltage testing is: slowly increase the applied voltage across the DUT until a small current flows through the device. Record the V and
- /archives//html/Amps/2012-02/msg00119.html (18,542 bytes)
- 3. Re: [Amps] Source for plate xfrmer (score: 1)
- Author: "B Osburn" <plantrunner5@msn.com>
- Date: Mon, 13 Feb 2012 19:52:12 -0700
- I don't think this is what you are looking for but Monster Controls has used control power XFMRs. I paid $950 for a 5kVA 240/2400V + Shipping. They only come in common medium voltage (MV) switchgear
- /archives//html/Amps/2012-02/msg00136.html (11,710 bytes)
- 4. Re: [Amps] Source for plate xfrmer (score: 1)
- Author: "B Osburn" <plantrunner5@msn.com>
- Date: Mon, 13 Feb 2012 21:10:26 -0700
- No, they are regular EI cores. Plain transformers used to supply control power for relays, etc. on MV busses. Not high Z. My HV wdg measures(DC) 6.8 ohms, LV 0.1 ohms with a Fluke 87. Here is my name
- /archives//html/Amps/2012-02/msg00143.html (14,567 bytes)
- 5. Re: [Amps] Filter Capacitors (score: 1)
- Author: "B Osburn" <plantrunner5@msn.com>
- Date: Sun, 15 Apr 2012 08:24:36 -0700
- For what it's worth the PSU Designer II program at Duncan's Amps shows it when you do a simulation. I just scaled back the voltage by a factor of 10 to "fit" in his program. Going to a Pi section rea
- /archives//html/Amps/2012-04/msg00144.html (13,699 bytes)
- 6. [Amps] Neutralizing push-pull amp (score: 1)
- Author: B Osburn <plantrunner5@msn.com>
- Date: Thu, 14 Mar 2013 10:23:33 -0600
- Neutralizing push-pull amp In pictures I see about a 2 long rod about 1 from the tube plate. How do you tune it? Keep making the rod longer/shorter? How do you arrive at the initial location? This is
- /archives//html/Amps/2013-03/msg00201.html (7,118 bytes)
- 7. [Amps] Band switch (score: 1)
- Author: "B Osburn" <plantrunner5@msn.com>
- Date: Fri, 5 Apr 2013 17:44:18 -0600
- Has anyone tried paralleling contacts on this switch by stacking sets vertically using 0.100" spacers? Thinking about using this approach for my tank circuit band switch for my 4CX1500B push-pull amp
- /archives//html/Amps/2013-04/msg00022.html (6,393 bytes)
- 8. [Amps] Transformer source (score: 1)
- Author: "B Osburn" <plantrunner5@msn.com>
- Date: Fri, 19 Apr 2013 08:05:11 -0600
- Another source for transformers is control power transformers from switchgear. They come with 2400, 4160 or 6.9kv primaries and up to 5kVA. They are built to last. We have some 4160 switchgear that i
- /archives//html/Amps/2013-04/msg00178.html (6,546 bytes)
- 9. Re: [Amps] tetrode push-pull amp schematics (score: 1)
- Author: "Brad Osburn" <plantrunner5@msn.com>
- Date: Wed, 17 Jun 2015 16:20:52 -0600
- Charlie, Under the heading of For What it's Worth I too am building a push-pull amp (4CX1500B). Basically I'm using Rich's single ended broadband input (4:1 balun xfmr terminated in 200 ohms, 100 eit
- /archives//html/Amps/2015-06/msg00048.html (9,378 bytes)
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