Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[AMPS\]\s+Simulating\s+center\s+tap\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[AMPS\]\s+Simulating\s+center\s+tap\s*$/: 8 ]

Total 8 documents matching your query.

1. [AMPS] Simulating center tap (score: 1): Author: rakefet@rakefet.com (Vic Rosenthal); Date: Tue, 16 Nov 1999 09:47:10 -0800; I just noticed that the filament transformer I was planning to use (got it free) for my 2 x 3-500z amp does not have a center tap. It has two 5v 20a windings which I was going to put in parallel. I r; /archives//html/Amps/1999-11/msg00345.html (7,752 bytes)
2. [AMPS] Simulating center tap (score: 1): Author: measures@vcnet.com (measures); Date: Tue, 16 Nov 1999 10:50:46 -0700; Put the windings in series and you have a CT. cheers, Vic - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Admi; /archives//html/Amps/1999-11/msg00347.html (7,624 bytes)
3. [AMPS] Simulating center tap (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Tue, 16 Nov 1999 13:21:02 -0600; Rich can type faster than I, Vic...good advice! The way Eimac-Varian handled series filaments on their pair of 4-1000A amps (yes, they used to be in the industrial amp business) is they wound a third; /archives//html/Amps/1999-11/msg00352.html (8,661 bytes)
4. [AMPS] Simulating center tap (score: 1): Author: wb8jkr@juno.com (Mark S Graalman); Date: Tue, 16 Nov 1999 15:59:48 -0500; Vic, Using one side of the transformer for the cathode return will work, BUT you will introduce hum modulation on the amp output. Seems to me the usual way was to place two series connected 33 ohm 2; /archives//html/Amps/1999-11/msg00355.html (9,247 bytes)
5. [AMPS] Simulating center tap (score: 1): Author: rakefet@rakefet.com (Vic Rosenthal); Date: Tue, 16 Nov 1999 13:51:13 -0800; But then the "CT" is unbalanced with respect to each tube, since the filaments have to be in series too. How is this different from putting them in parallel and connecting the b- return to one side?; /archives//html/Amps/1999-11/msg00356.html (7,928 bytes)
6. [AMPS] Simulating center tap (score: 1): Author: rakefet@rakefet.com (Vic Rosenthal); Date: Tue, 16 Nov 1999 16:06:00 -0800; Replying to my own message, But, Vic, you dummy, the hum modulation of the one tube is exactly out of phase from that on the other tube! Duh. Sorry, Rich (and others), you guys were right. The series; /archives//html/Amps/1999-11/msg00359.html (8,070 bytes)
7. [AMPS] Simulating center tap (score: 1): Author: measures@vcnet.com (measures); Date: Wed, 17 Nov 1999 05:35:52 -0700; ? Rich was probably sitting closer to his computer when the e-mail arrived. cheers, Phil - Rich..., 805.386.3734, www.vcnet.com/measures. -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submis; /archives//html/Amps/1999-11/msg00368.html (8,245 bytes)
8. [AMPS] Simulating center tap (score: 1): Author: measures@vcnet.com (measures); Date: Wed, 17 Nov 1999 05:35:57 -0700; It is different because you can't hear hum modulation on the air. The TL-922 uses a 10 or so volt source with the 3-500Z filaments in series. The operator at the receiving end hears no hum modulatio; /archives//html/Amps/1999-11/msg00369.html (8,272 bytes)

Current List: 1 - 8
Page: [1]