|
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: did you have any hum at the El84 driver stage? posted by zobsky on December 7, 2006 at 09:18:08:
The pentode driver stage does not have much to offer in the way of ripple rejection, however, if your layout is decent and the power supply is well filtered, hum will not be an issue. I have less than 1 mv hum at speaker terminals. My supply is lcrc, with a snubber ahead of the choke. filter caps are 97uf and 97uf. B+ for the output is at junction of choke and first 97uf cap, B+ for el83 is at the last cap. I did float the el84 heater about 20v above ground.
Jim
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Re: did you have any hum at the El84 driver stage? - Jim Womble 12:13:51 12/07/06 (3)
- Thanks (NT) - zobsky 15:28:40 12/07/06 (0)
- Re: did you have any hum at the El84 driver stage? - red 12:19:45 12/07/06 (1)
- Re: did you have any hum at the El84 driver stage? - Jim Womble 13:41:56 12/07/06 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
