I've come upon a very nice vintage Chicago transformer and choke set that features a 1000vac (CT) @125ma winding, a 470vac (CT) @100ma winding, plus 2x 6.3v and 2x 5v (no CTs). In addition, it came with 2x matching Chicago 8H chokes each rated at 125ma. Modeled in PSUDII as an LCLC, the 1000vac winding produces 412vdc using a 6ax4 rectifier and 2x 30uf caps. Ripple is .035ma (edited 3/10).Of concern is the "125ma" rating of the PT and chokes, and the lack of center taps for any of the filament windings. I am assuming that the rating printed on the PT and chokes is based on a choke (LCLC) input PS. Is that likely a correct assumption? If so the transformer compliment suggests "300B" with separate PS for the drivers, assuming there is a solution to the "no CT" issue.
However, before I start accumulating parts for such a project, what other tube compliment might I investigate bearing in mind the voltage and current availability?
Also note that I am fully aware that these are old fashioned "high resistance" PS components, considered by some to be "low-fi". I don't wish to engage in that debate.
TIA.
Gary
Edits: 03/10/17
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Topic - What to do with 412 volts - BofService 17:28:26 03/08/17 (20)
- RE: The lack of a heater CT is not much of a problem - DAK 19:37:03 03/09/17 (0)
- RE: What to do with 412 volts - megasat16 11:53:09 03/09/17 (0)
- RE: Are these military potted trannys? - DAK 08:45:49 03/09/17 (10)
- RE: Are these military potted trannys? - BofService 11:01:23 03/11/17 (3)
- RE: Does it have military markings - DAK 11:05:37 03/12/17 (2)
- RE: Does it have military markings - BofService 12:40:44 03/12/17 (1)
- RE: Does it have military markings - DAK 14:39:24 03/12/17 (0)
- RE: Are these military potted trannys? - BofService 15:30:49 03/10/17 (0)
- RE: Are these military potted trannys? - Eli Duttman 18:40:26 03/09/17 (2)
- RE: Are these military potted trannys? - BofService 16:05:21 03/10/17 (1)
- RE: Are these military potted trannys? - Eli Duttman 17:41:03 03/10/17 (0)
- RE: Are these military potted trannys? - Tre' 18:13:53 03/09/17 (1)
- Unfortunately, i never collected them - DAK 18:41:53 03/09/17 (0)
- Cart before the horse - drlowmu 19:53:33 03/08/17 (0)
- RE: What to do with 412 volts - Eli Duttman 18:32:57 03/08/17 (0)
- RE: What to do with 412 volts - hifipaul 18:17:44 03/08/17 (1)
- RE: What to do with 412 volts - BofService 18:22:46 03/08/17 (0)
- 125mA will get you one channel - Chip647 17:46:02 03/08/17 (2)
- RE: 125mA will get you one channel - BofService 18:13:57 03/08/17 (1)
- RE: 125mA will get you one channel - drlowmu 19:58:35 03/08/17 (0)