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'More complete schematic w/ NFB.'
Author:yecrom (registered user: 1167 posts )
Date: Thu, Dec 18th, 2008 @ 15:37 ( . )

Thanks Merlin. R18 and R19 are equal at the moment simply because I typed in the same values. I just haven't changed them yet. I'd actually thought about feeding them to opposite sides of the PI, but like the extra gain from having the other input fully bypassed/coupled/groundified? not sure of the word I'm looking for at the moment. It's been a long week. thinking isn't my forte at the moment.

R20 right now is a total guess at 470k. I'll probably go with R18 at 470k and R19 at 220k and adjust from there. Maybe I should socket them like I do for trannies/caps on the effects builds. :-)

I'm doing up a rough layout right now for a 6.5"x20"x2.5" 18-watt-combo style chassis. I've already got it. It will work well. And having a Fender-ish amp in a marshall combo cab should make people give lots of weird looks when they first hear it especially if I can get some nice lush deep reverb out of it. Ok, maybe I'm just warped, but I think it will be fun.

Matt

-- REPLY: [With No Quote] --- [With Quoted Text]

Replies:
--* Here's the working Schematic. Now for the Layout.
12/18/2008 @ 18:39--yecrom
12/18/2008 @ 19:32----sharkboy
------* CalDreamer -- Now with more that one resistor!!
12/18/2008 @ 20:16------yecrom
12/19/2008 @ 11:10--------yecrom
12/19/2008 @ 11:33----------sharkboy
12/19/2008 @ 11:41------------yecrom
12/19/2008 @ 12:34------------yecrom
12/19/2008 @ 13:04--------------Merlin
----------------* Very rough layout.
1/02/2009 @ 16:04----------------yecrom
------------------* ... and a drill plan
1/06/2009 @ 14:53------------------yecrom
2/06/2009 @ 13:36--------------------Merlin
2/06/2009 @ 19:09----------------------yecrom
2/06/2009 @ 19:27----------------------yecrom
2/07/2009 @ 05:31------------------------Merlin
2/07/2009 @ 05:32------------------------Merlin
2/07/2009 @ 13:16--------------------------yecrom
----------------* CalDreamer -- Now with more that one resistor!!
2/06/2009 @ 21:04----------------joe kerr
2/09/2009 @ 11:21------------------yecrom
--------------------* Slowly but surely...
9/10/2009 @ 01:01--------------------yecrom
9/10/2009 @ 18:16----------------------Merlin
9/10/2009 @ 22:43------------------------yecrom
------------------------* Slowly but surely... Chassis is finally drilled!
9/14/2009 @ 12:02------------------------yecrom
--------------------------* Ok! Someone lied to me!!
9/18/2009 @ 11:02--------------------------yecrom
9/18/2009 @ 14:31----------------------------Stephen Keller
9/18/2009 @ 15:25------------------------------MasonAtom
9/18/2009 @ 15:55--------------------------------yecrom
9/18/2009 @ 16:30----------------------------------sharkboy
9/18/2009 @ 16:49----------------------------Zoe N Iain
9/18/2009 @ 18:38----------------------------Cliff Chappell
9/18/2009 @ 19:27------------------------------yecrom
9/19/2009 @ 03:29------------------------------Zoe N Iain
----------------------------* Another question --- Where to put reverb dwell control.
9/22/2009 @ 19:11----------------------------yecrom
----------------------------* Ok! Someone lied to me!!
7/05/2012 @ 20:49----------------------------Zambo

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