Search found 4 matches

by Greg_L
Wed May 31, 2017 10:08 am
Forum: Marshall Discussion
Topic: 1987x PPIMV and Cascade Mod - help please!
Replies: 7
Views: 2482

Re: 1987x PPIMV and Cascade Mod - help please!

ampmike wrote: Sun May 28, 2017 7:34 pm I think there is a you tube vidio under master vol Marshall. Try searching that. You got the right info from the best guy here but this might help just seeing it done. 👍
Thanks for the reply. It's actually been done for a few weeks now and working perfectly. :)
by Greg_L
Thu May 11, 2017 11:10 am
Forum: Marshall Discussion
Topic: 1987x PPIMV and Cascade Mod - help please!
Replies: 7
Views: 2482

Re: 1987x PPIMV and Cascade Mod - help please!

Why is it you want a master volume in the amp? Because I don't always want to use an attenuator. I have one I'm happy with, Weber Mass 200, but I don't always want to take it out to shows. I play punk rock gigs and some of them are sort of rough and tumble and some of them are in somewhat shady ven...
by Greg_L
Thu May 04, 2017 12:39 am
Forum: Marshall Discussion
Topic: 1987x PPIMV and Cascade Mod - help please!
Replies: 7
Views: 2482

Re: 1987x PPIMV and Cascade Mod - help please!

Looks like you've ID'd the 220k grid leak resistors that will be replaced by the dual MV pot correctly. The addition of grid stoppers (aka swamp resistors) will help prevent oscillations, and I'd definitely add them since you will be have some long leads running to the MV. You'll want to remove the...
by Greg_L
Wed May 03, 2017 8:13 pm
Forum: Marshall Discussion
Topic: 1987x PPIMV and Cascade Mod - help please!
Replies: 7
Views: 2482

1987x PPIMV and Cascade Mod - help please!

Hi, I'm new here. I didn't see an introduction section, so I figured I'd jump right in. Okay, I got this 2001 1987x here. No effects loop. Basic 50w Plexi reissue. Cool. http://i29.photobucket.com/albums/c280/whodat6464/Music%20gear/20170502_175913_zpsyh0kpr61.jpg I want to add a PPIMV so I can then...