|
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: RE: "few hundreds of mA, max." posted by FenderLover on July 19, 2016 at 06:51:45:
That's likely still more than needed. The amount of current through the tube grid is measured in microamps - with the exception of tubes/gear designed to push the tube grids into positive voltages! There is some current through the grid "leak" resistors, and there may be some paths to ground either through bias supply bleeder resistors or the adjustment pots (if present).
For instance a Citation II amp draws just a few ma. of grid current per channel under most circumstances.
It should be noted that some power tubes DO draw a bit more grid current as their grids are driven close to the zero point so some extra current capability is a good idea. But even 25 ma is probably overkill - although harmless...
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: "few hundreds of mA, max." - Jim McShane 08:02:59 07/19/16 (1)
- It is simple - PakProtector 10:52:38 07/19/16 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
