Tweed Bassman Mod for the Peavey Classic 30 amp
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Classic 30 schematic:
  http://www.blueguitar.org/c30schem.gif

Classic 30 layout:
  http://www.blueguitar.org/c30layg1.jpg

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1.   Replace R6 with a 68k resistor
2.   Replace C8 with a jumper
3.   Remove C10
4.   Replace R10 with a 1M resistor
5.   Replace C4 with a 680pf silver mica cap
6.   Remove C7
7.   Replace R9 with a 1M resistor
8.   Replace C13 with a 25uf/25wvdc electrolytic
9.   Replace R2 with a 100k resistor
10.  Replace C2 and R5 with jumpers
11.  Remove C1 and R11
12.  Cut the trace to pin 2 of Relay K1.  THIS IS VERY IMPORTANT
13.  Replace R3 with  a jumper
14.  Replace R17 with a 100k resistor
15.  Remove C15
16.  Remove R7
17.  Remove C5
18.  Replace C16 with a 47pf silver mica cap.
19.  Run a jumper wire from the R17/C15 junction to the C5/R13 Junction.
	Shielded cable is recommended.
20.  Put .01uf cap in series with the jumper in step 19 and VR3.  
	One of the inter-board jumpers can be removed and replaced with the cap.
21.  Replace VR3 with a 500Ka pot.
22.  Replace R59 and R60 with 5k/1watt resistors

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Contributed by David Becker

e-mail: loudernhel@aol.com
Website: http://home.att.net/~loudernhelampworks/index.html