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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: RE: Filaments and filament bias posted by coin on April 15, 2016 at 00:33:37:
"How bout a white cathode follower?"
IMHO designing WCF with DHTs is too complicated, solvable, but not practical.
Lower output impedance is an advantage, but with other solutions (other tubes, DHT/IDHT mix etc.) give better results.
As you can see the upper tube has DC filament (current or voltage is equal in this respect), the lower use filament bias. The anode current flow trough filament bias resistor, but it is negligible beside the filament current.
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Follow Ups
- RE: Filaments and filament bias - euro21 03:29:02 04/15/16 (3)
- RE: Filaments and filament bias - coin 03:40:56 04/15/16 (2)
- RE: Filaments and filament bias - euro21 03:57:17 04/15/16 (1)
- RE: Filaments and filament bias - coin 05:37:23 04/15/16 (0)
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