In Reply to: 6BQ5 Plate Voltage questions on Heathkit conversion to guitar head posted by bdgregory on February 16, 2012 at 12:40:39:
The tube's screen grids get a real beating in a guitar amp - add some 470 Ohm droppping resistors in each screen lead (from screen to transformer if it's still in UL). You'll find these in most guitar amps - screen current jumps much higher when the tube approaches clipping, which you DON'T do (or only do on occasional transients) in a hi-fi amp.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: 6BQ5 Plate Voltage questions on Heathkit conversion to guitar head - Tom Bavis 02/18/1217:45:26 02/18/12 (6)
- RE: 6BQ5 Plate Voltage questions on Heathkit conversion to guitar head - bdgregory 11:49:13 02/19/12 (5)
- Switch for UL - FenderLover 16:58:19 02/19/12 (4)
- RE: Switch for UL - bdgregory 19:02:31 02/19/12 (3)
- RE: Switch for UL - FenderLover 19:41:46 02/19/12 (2)
- RE: Switch for UL - bdgregory 20:39:23 02/19/12 (1)
- RE: Switch for UL - FenderLover 21:58:12 02/19/12 (0)