Tube Amps / Music Electronics
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|10/12/1999 9:41 PM|
|Jeff||Re: Plexi Palace Jumper|
I'm pretty much there I think. Just wondering what the best value for th nfb should be. I read Randalls post but I'm not that advanced. I believe it's 47k right now. Adding a .68uf cathode bypass cap on the 2nd gain stage helped a lot.
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|10/13/1999 3:00 AM|
This is for a 50 W plexi, but take a look at this:
I don't know if this is partly what you're thinking about. It looks like a non-intrusive mod, but I have NO idea how it would sound.
|10/13/1999 3:45 AM|
Thanks Dave. Looks interesting.
|10/13/1999 6:33 AM|
Jeff I had a look at that mod too and it looks cool. You can even use one of those push/pull pots with a DPDT switch so you won´t intrude on the original look of your amp.
|10/8/1999 1:22 AM|
||Re: Plexi Palace|
Well...you're running it wide open....are you gigging or recording?
|10/8/1999 3:36 AM|
I don't wanna go the mv route. I understand the logic though. I always run it wide open so it would defeat the purpose. We're a very loud band. I run the amp at 89 volts. I guess that quiets it a bit. Seems to give some more gain too. I read that off the Plexi Palace page. I've heard conflicting ideas on what the correct value of the nfb should be. I think it's a 47K right now. What would a diffrent value do? It has a .68 cathode bypass cap on the 2nd gain stage.
|10/8/1999 4:36 AM|
The correct value for that year is 47k. Changing to 100k will give you a bit more distortion and make the amp sound more agressive.
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