Posted by Tnuctipun [ 64.12.116.14 ] on January 05, 2005 at 07:53:37:

In Reply to: Re: Options... posted by Wayne Parham on January 05, 2005 at 00:57:38:

For that approach, you'll need a higher voltage TX. The higher voltage will also raise the minimum current requirement( so-called 'critical current' ) to achieve choke-input regulation. You might also want to add another stage of filtering to get rid of the last volt or two of ripple.

That's a nice little side-efect of the active load: high PS isolation and high zero-signal current w/o resorting to low value plate loads and high B+.

Applying Ohm's law, getting a 100V drop at 10 mA is only going to allow a 10k plate load. This will create some audible, but perhaps not detrimental effects.
regards.
Douglas

...to the soldering bench Batman!

Replies:

• Re: Options... - Damir 08:10:02 01/05/05 (2)
  • heretic.... - Tnuctipun 16:22:56 01/19/05 (1)
    • I know you`d like it... - Damir 16:25:25 01/20/05 (0)