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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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I have 6.3V AC heaters in my preamp right now, and I can't seem to shake the hum.Can I hook up a 6V lantern battery to my 6SN7 heaters, purely for testing purposes to try out DC heaters?
What kind of current draw can lantern batterys handle? How many might I need for 4 6SN7s?
If it eliminates the hum without dimming that "alive" sound I'm getting from the AC heaters, I'll figure out how to put a higher voltage filament transformer and feed that to DC rectification....
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Topic - DC heaters with lantern battery? - Jayme 08:50:08 10/27/06 (18)
- Re: DC heaters with lantern battery? - danlaudionut 17:30:03 10/27/06 (3)
- Re: DC heaters with lantern battery? - Jayme 15:30:06 10/28/06 (2)
- Re: DC heaters with lantern battery? - danlaudionut 18:01:10 10/28/06 (1)
- Eureka! - Jayme 18:10:38 10/28/06 (0)
- I did it - dado4 16:37:23 10/27/06 (0)
- Why do you need DC heating ? - fatbottle 09:34:33 10/27/06 (8)
- Re: Why do you need DC heating ? - Ray Moth 16:53:50 10/27/06 (2)
- Re: Why do you need DC heating ? - Jayme 15:20:59 10/28/06 (0)
- Re: Why do you need DC heating ? - fatbottle 03:08:37 10/28/06 (0)
- Re: Why do you need DC heating ? - Jayme 10:10:14 10/27/06 (4)
- Re: Why do you need DC heating ? - fatbottle 12:02:27 10/27/06 (3)
- Re: Why do you need DC heating ? - Jayme 14:22:09 10/27/06 (2)
- Re: Why do you need DC heating ? - fatbottle 15:58:40 10/27/06 (0)
- My rule of thumb for this: - gusser 15:21:48 10/27/06 (0)
- Try it--but... - lipmanl 09:17:33 10/27/06 (3)
- Re: Try it--but... - Jayme 10:01:52 10/27/06 (2)
- Wait a minute - buzz or hum? - gusser 12:58:25 10/27/06 (1)
- Re: Wait a minute - buzz or hum? - Jayme 14:20:03 10/27/06 (0)
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