Which caps do I need for XXX model?

Info for maintaining and tweaking your amp to perfection.

Moderator: VelvetGeorge

Post Reply
User avatar
VelvetGeorge
Site Owner
Posts: 7220
Joined: Tue Oct 14, 2003 5:12 pm
Just the numbers in order: 13492
Location: The Murder Mitten
Contact:

Which caps do I need for XXX model?

Post by VelvetGeorge » Tue Jan 11, 2005 5:57 pm

To help make it easier for those of you ordering board kits without siganl caps. Here are the values you'll need in Sozos or your brand of choice.
A .1uf presence cap is included for each model.


100 watt superlead '69 era circuit:
(1) .0022
(6) .022
(2) .1
(2) .68

100 watt superlead '68 era:
(7) .022
(2) .1
(1) .68 (2) for split cathode

100 watt Superbass (same as '67 SL):
(5) .022
(4) .1

50 watt models are the same as the 100's.

JTM 45 and Bluesbreaker:

(5) .022
(4) .1

Master Volume 100 and 50 watt:

(7) .022
(2) .1
(1) .68

George
Check out Plexi Replicas for my personal amp builds...
Image

User avatar
rockstah
Senior Member
Posts: 12481
Joined: Thu Sep 15, 2005 12:28 pm
Just the numbers in order: 7
Location: Austin Texas

Post by rockstah » Fri Sep 23, 2005 3:28 am

thanks for the post George!

User avatar
guitar007
Senior Member
Posts: 1154
Joined: Thu Nov 10, 2005 8:28 pm
Contact:

Post by guitar007 » Mon Nov 14, 2005 9:51 pm

Yeah...thanks, VG! 8)
~guitar007

User avatar
Bainzy
Senior Member
Posts: 2119
Joined: Fri Sep 02, 2005 11:44 am
Just the numbers in order: 7
Location: Bingley, UK
Contact:

Post by Bainzy » Sun Apr 02, 2006 2:16 pm

Thought I might update this for people building other specs:

Ralle Spec:

(5) .022
(3) .1
(2) .68uf

****** EVH Spec:

(5) .022
(4) .1
(1).68uf (for the split cathode that the amp was changed to later)


Both these 2 specs need an additional electrolytic 330uF cap for the bypass cap on V2a Ck


I'll post some more as I think of them.
"I want to know what happened to the plans they sent you"

Shred Guitar
Plexi Mods - now with new forum, please join!

David_Well
Senior Member
Posts: 88
Joined: Wed Jul 29, 2009 5:12 pm
Just the numbers in order: 7

Re: Which caps do I need for XXX model?

Post by David_Well » Sun Aug 16, 2009 10:49 pm

My 73 Super bass got a .68 in presence....
do you know why and
can we change the .1 for a .68?

User avatar
flemingmras
Senior Member
Posts: 2532
Joined: Fri Mar 19, 2004 1:39 am
Just the numbers in order: 7
Location: Rohnert Park, CA
Contact:

Just out of curiosity...

Post by flemingmras » Fri Sep 04, 2009 5:45 am

...if people order caps for and install them in XXX model, will that make their amp "XXX" rated?

Or does that simply mean that they're ordering "brand X" caps?
There's just that fine line between stupid and clever - Nigel Tufnel

Joshabr1
Senior Member
Posts: 208
Joined: Fri Aug 23, 2013 1:26 pm
Just the numbers in order: 13492

Re: Which caps do I need for XXX model?

Post by Joshabr1 » Thu Sep 25, 2014 1:22 pm

David_Well wrote:My 73 Super bass got a .68 in presence....
do you know why and
can we change the .1 for a .68?
The latter circuit was a 25k pot with the .68 and a 4k7 shunt resistor. The earlier circuit was a 5k pot with only the .1 cap. Some where shipped with a 5k pot and the 68/4k7 set up. If yours is like that u can simply switch to the .1 and have the old circuit. Which I like better.

Joshabr1
Senior Member
Posts: 208
Joined: Fri Aug 23, 2013 1:26 pm
Just the numbers in order: 13492

Re: Which caps do I need for XXX model?

Post by Joshabr1 » Fri Dec 19, 2014 9:10 pm

I see u have 2 .68 caps on the 68 split cathode version. Was there a .68 across the v2 of many shared cathode amps???

Post Reply