I know I can vary the voltage by using a variable transformer, but is there any less expensive way to make adjustable filament voltage supplies? I need to build a couple for some 1.5 volt amd 2.5 volt dht tubes.
Edits: 07/22/15
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Topic - ideas on variable filament supplies? - vinnie2 13:15:06 07/21/15 (18)
- Rod Coleman's regs are adjustable - andy evans 04:41:59 07/27/15 (1)
- RE: Rod Coleman's regs are adjustable - vinnie2 18:40:59 07/28/15 (0)
- RE: ideas on variable filament supplies? - Alpha Al 13:23:42 07/21/15 (15)
- RE: ideas on variable filament supplies? - vinnie2 03:55:08 07/22/15 (14)
- RE: ideas on variable filament supplies? - Alpha Al 05:19:00 07/22/15 (8)
- RE: ideas on variable filament supplies? - vinnie2 04:54:15 07/23/15 (7)
- RE: ideas on variable filament supplies? - Alpha Al 09:31:09 07/23/15 (6)
- RE: ideas on variable filament supplies? - vinnie2 10:04:08 07/23/15 (5)
- RE: ideas on variable filament supplies? - Alpha Al 11:26:13 07/23/15 (4)
- RE: ideas on variable filament supplies? - vinnie2 12:30:12 07/23/15 (3)
- RE: ideas on variable filament supplies? - Alpha Al 04:34:43 07/24/15 (2)
- well rats! - vinnie2 14:13:26 07/24/15 (0)
- RE: ideas on variable filament supplies? - vinnie2 12:09:52 07/24/15 (0)
- RE: ideas on variable filament supplies? - amnesiac 04:51:44 07/22/15 (4)
- RE: ideas on variable filament supplies? - BofService 07:49:34 07/23/15 (3)
- RE: ideas on variable filament supplies? - Triode_Kingdom 08:13:07 07/23/15 (2)
- RE: ideas on variable filament supplies? - amnesiac 22:42:51 07/23/15 (1)
- RE: ideas on variable filament supplies? - lugnut1 06:09:38 07/24/15 (0)