Different animal!

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Different animal!

Posted by gusser (A) on March 4, 2015 at 10:30:36

In Reply to: RE: choke input bias supply ARRL style posted by amnesiac on March 4, 2015 at 05:29:47:

RF power tubes have different bias coupling requirements due to the application. RF is much more critical in terms of layout and the coupling of bias voltage to the grid is often more complex. RF will also leak back out into the power line quite easily through power supplies if not taken care of. Audio amps don't have those issues.

What I and the other posters are saying here applies only to audio amps.

I too an a fan of regulated bias supplies as well as regulated driver power sources. I have tried regulated finals and don't like the sound.

So if you want to build a good regulated bias supply, it certainly won't hurt anything.

Keep on reading that ARRL book. It's a wealth of good timeless information. I have a few myself.

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Follow Ups Full Thread

Topic - choke input bias supply - hennfarm 14:11:14 03/02/15 (16)

RE: choke input bias supply - Paul Joppa 21:41:54 03/02/15 (0)

Not Necessary - gusser 14:47:53 03/02/15 (1)

RE: Not Necessary - hennfarm 15:27:00 03/02/15 (0)

Even a half wave bias supply is perfectly quiet with just a cap - Chip647 14:42:45 03/02/15 (0)

RE: choke input bias supply - sony6060 14:33:26 03/02/15 (0)

Critical Henry - Triode_Kingdom 14:26:01 03/02/15 (2)

zackly... - PakProtector 18:29:57 03/02/15 (1)

but.... - PakProtector 06:09:00 03/10/15 (0)

RE: choke input bias supply - hennfarm 14:14:08 03/02/15 (7)

RE: choke input bias supply - Russ57 14:38:04 03/02/15 (6)

RE: choke input bias supply - amnesiac 05:11:50 03/03/15 (5)

RE: choke input bias supply - gusser 10:14:39 03/03/15 (4)

RE: choke input bias supply ARRL style - amnesiac 05:29:47 03/04/15 (3)

Different animal! - gusser 10:30:36 03/04/15 (2)

Regulated Bias - Triode_Kingdom 21:30:04 03/06/15 (1)

Can be done - Maxamillion 13:38:50 03/07/15 (0)

Follow Ups

Different animal! - gusser 10:30:36 03/04/15 (2)

Regulated Bias - Triode_Kingdom 21:30:04 03/06/15 (1)

Can be done - Maxamillion 13:38:50 03/07/15 (0)

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