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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: LED BIAS vs LEAD ACID BATTERY posted by ALL DHT on October 25, 2001 at 22:35:12:
what bias voltage were you trying to get???an interesting aside... the use of a rechargable battery in the cathode is known as "Kotei" bias in an old joenet post from reid welch it stated that the direct heating folks preferred lead acid kotei to nicad.
i found i like nimh batteries (two AA nimh in series for -2.7V on a 6C45) best and high capacity nicads better than Lead acid cells... and once you get past 3-4 seriesed cells i tend to prefer the more traditonal R/C combo... (remember that the 6V lead acid cells are just a bunch of lower voltage (2v?) cells in series...
has anybody else compared the various batteries in kotei bias?
dave
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Follow Ups
- Re: LED BIAS vs LEAD ACID BATTERY - dave slagle 09:30:30 10/26/01 (16)
- Re: LED BIAS vs LEAD ACID BATTERY - Dave-A 20:39:21 10/26/01 (0)
- BATTERY for filament heating - stelios 10:30:09 10/26/01 (14)
- Re: BATTERY for filament heating - dave slagle 11:22:26 10/26/01 (13)
- Re: BATTERY for filament heating - stelios 13:08:47 10/26/01 (1)
- Re: BATTERY for filament heating - dave slagle 14:15:06 10/26/01 (0)
- Re: BATTERY for filament heating - Paul Barker 12:21:38 10/26/01 (10)
- Re: BATTERY for filament heating - stelios 13:32:14 10/26/01 (9)
- Re: BATTERY for filament heating - dave slagle 13:57:35 10/26/01 (8)
- Re: BATTERY for filament heating - stelios 08:45:46 10/27/01 (0)
- Re: BATTERY for filament heating - Paul Barker 00:40:32 10/27/01 (5)
- Re: BATTERY for filament heating - dave slagle 15:22:33 10/28/01 (4)
- Re: BATTERY for filament heating - hifitom 22:03:33 10/26/01 (0)
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