anderson80
Registered User
Join date: Aug 2009
1,270 IQ
#1
my jcm 800 2204 is going to the tech to get the volume pot fixed and I thought id get new valves all round at the same time. so if money was no object what power and preamp valves would you install?
Robbgnarly
Tab Contributor
Join date: Feb 2011
1,177 IQ
#2
NOS Mullard ecc83 in V1/V2, NOS JAN Phillips 5751 PI and NOS Mullard EL34


But in reality: New Mullard 12ax7 V1/V2, NOS JAN Phillips 5751 and SED EL34
2002 PRS CE22
2013 G&L ASAT Deluxe
2009 Epiphone G-400 (SH-4)
Marshall JCM2000 DSL100
Krank 1980 Jr 20watt
Krank Rev 4x12 (eminence V12)
GFS Greenie/Digitech Bad Monkey
Morley Bad Horsie 2
MXR Smart Gate
anderson80
Registered User
Join date: Aug 2009
1,270 IQ
#3
excuse my ignorance but why choose a different valve for v3?
Robbgnarly
Tab Contributor
Join date: Feb 2011
1,177 IQ
#4
Quote by anderson80
excuse my ignorance but why choose a different valve for v3?

Because that is the Phase Inverter and the JAN Pillips 5751 is one of the best tubes for that and it only costs $30ish

NOS Mullard ecc83 will run you $100 each, the Mullard EL34 will run you $170 each
2002 PRS CE22
2013 G&L ASAT Deluxe
2009 Epiphone G-400 (SH-4)
Marshall JCM2000 DSL100
Krank 1980 Jr 20watt
Krank Rev 4x12 (eminence V12)
GFS Greenie/Digitech Bad Monkey
Morley Bad Horsie 2
MXR Smart Gate
Cathbard
Grumpy Old Tech
Join date: Oct 2009
2,565 IQ
#5
If you aren't going NOS then JJ all the way in the preamp of a Marshall. ECC803 in V1, ECC83S in the other positions.

Power tubes are another story. If you can afford SED =C= then that's what to go for. Otherwise JJ. EL34 for the traditional sound, EL34L if you want a beefier, bigger bottom end.
I have neen running JJ 6CA7's in my JCM900 (same power amp) which give nice breakup if you are cranking it hard. Sorta part way between EL34 and EL34L with a hint of KT66 in its distortion.
Gilchrist custom
Yamaha SBG500
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Marshall JTM45 clone
Marshall JCM900 4102 (modded)
Marshall 18W clone
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Atomic Amplifire
Marshall 1960A
Boss GT-100


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Robbgnarly
Tab Contributor
Join date: Feb 2011
1,177 IQ
#6
Cath you should give one of the new Mullards a try in the preamp, way better than JJ IMO. Well at least in a Marshall. They work really well in V1 of my DSL100
2002 PRS CE22
2013 G&L ASAT Deluxe
2009 Epiphone G-400 (SH-4)
Marshall JCM2000 DSL100
Krank 1980 Jr 20watt
Krank Rev 4x12 (eminence V12)
GFS Greenie/Digitech Bad Monkey
Morley Bad Horsie 2
MXR Smart Gate