|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
|
|
|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
|
In Reply to: Thanks,that cleared it up for me! posted by Rune on April 30, 2007 at 01:29:30:
>Does this mean that one have to choose voltage or current regulatedThe vast majority of regulated filament supplies are voltage (not current) regulated. One good reason for this is that the filament supply usually feeds a number of tubes in parallel. With a current source, removing a tube (or having a filament open unexpectedly) will cause the supply to increase the voltage to all the other tubes. So, safe operation requires either a crowbar across the output of the current regulator or a separate current regulator for each tube. On the other hand, the downside to voltage regulators (and simple filament transformers) is the inrush current when the tube is cold. This can be minimized if steps are taken during the design of the regulator to provide a slower start.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Re: Thanks,that cleared it up for me! - Triode_Kingdom 06:01:01 04/30/07 (8)
- Current source filaments - andy evans 14:52:54 04/30/07 (7)
- Re: Current source filaments - Triode_Kingdom 05:49:08 05/01/07 (6)
- I used to think that - Mark Kelly 14:35:27 05/01/07 (5)
- Re: I used to think that - dave slagle 17:47:52 05/01/07 (4)
- By "suck it and see" - Mark Kelly 19:13:56 05/01/07 (3)
- Re: By "suck it and see" - Triode_Kingdom 20:42:05 05/01/07 (2)
- I moved away from SS devices - Mark Kelly 21:18:27 05/01/07 (1)
- Re: I moved away from SS devices - arend-jan 04:43:02 05/04/07 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
