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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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I have seen references to using an eg. LM317 configured as a current source for regulating heaters. The configuration is extremely simple; just one resistor is required between the output and the adjustment leg. Let us say that I need 300mA/6.3V. How do I calculate the resistor?
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Topic - Current source for heaters - bequerel 10:03:26 12/19/02 (9)
- use a small pot - Darren D 18:28:09 12/19/02 (2)
- Re: use a small pot - larry moore 06:33:03 12/20/02 (0)
- Ummmm... that's variable current, not voltage. - Mark Kelly 19:44:15 12/19/02 (0)
- Re: Current source for heaters - larry moore 11:07:38 12/19/02 (5)
- Re: Current source for heaters - bequerel 00:10:40 12/20/02 (4)
- Re: Current source for heaters - 7N7 09:25:38 12/21/02 (0)
- Re: Current source for heaters - larry moore 06:31:09 12/20/02 (1)
- Re: Current source for heaters - EC8010 09:28:05 12/20/02 (0)
- Re: Current source for heaters - Paul Barker 00:48:21 12/20/02 (0)
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