Plate Bypass Cap for EVH 5150 III

[Jcknowles89]

Hello All!

Looking to add a Plate bypass Cap to the last gain stage and possibly the last two of the Red channel of EVH 5150III to cut back the high end fizzle. Any suggestions on values? Seems like BE-100 uses 500pf caps, Dual Rec uses 220pf, and SLO 100 uses 1000pf. Any suggestions? also if let me know if I should consider doing this to other gain stages instead of V3 or V4.

Schematic: View attachment Fender-EVH-50W page 1.pdf

Thanks,

 

[devastone]

Re: Plate Bypass Cap for EVH 5150 III

Since the caps form a filter with the plate resistors you need to also look at the value of the resistor they are going across.