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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: D.C. Filament transformer and choke size. posted by TomWh on October 17, 2014 at 11:32:34:
A lot depends on the actual circuit, specifically whether the filter is choke-input or capacitor-input, and whether the rectifier is full-wave center-tapped or a bridge.
A specific example: I am currently working on a design for 2A3s with fullwave bridge Schotty rectifiers and capacitor input. Looks like it needs at least 3.15 volts at 4.5 amps RMS input. Trying 3-amp rectifiers but may need to get larger ones to get the output up to 2.5 volts.
PSUD is a big help in scoping out a design, but actual voltages are not close enough to rely on, mostly (I think) due to inaccuracies in the diode model. Just my experience.
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Follow Ups
- RE: D.C. Filament transformer and choke size. - Paul Joppa 12:11:00 10/17/14 (3)
- RE: D.C. Filament transformer and choke size. - TomWh 13:28:15 10/17/14 (2)
- RE: D.C. Filament transformer and choke size. - Paul Joppa 17:51:50 10/17/14 (1)
- Thanks Paul - TomWh 19:22:33 10/17/14 (0)
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