This mod sounds good
Still sounds like A$$ C19 mod
The general consensus is the C-19 mod is laregly done by bedroom players who never drive the amp. I think it is unnecessary...
I agree...your vintage amps are light years better...
This mod sounds good
Still sounds like A$$ C19 mod
Thanks, Robert. I’ll see if I can try it this weekend. But it is NAMM weekend and I might be busyCurrent setup was based on just what I had on hand:
V1 - JJ-ECC823
V2 - JJ-5751
V3 - JJ-ECC83-MG
V4 - 7025WA
Essentially, you could use the stock Marshall ECC83 tubes in V3 and V4. The JJ-ECC83-MG is a low gain 12AX7/ECC83 and the 7025WA is the same tube but a low noise variant.
In this configuration, I'm running gain at 6-7 on 'Lead 1' with Tone Shift 'In.'
View attachment 21429
The settings shown are what we are using for everything. It sounds great on Zeppelin's The Ocean and equally great on Judas Priest's Green Manalishi.
I wish I had a DSL40C to give you an honest answer...Let's talk about V3/V4 tubes - in this case, in the DSL40C - and what kind of tone influence they might have????

Sure sounds good to me, Robert.
I love it! Nothing I can find to improve on here. I dig the Star Trek quote!
That sounded damn good, Robert. I like heavy midrange as long as it doesn't make the higher frequencies harsh.
How's the clean side of the amp working for you?
That sounded damn good, Robert. I like heavy midrange as long as it doesn't make the higher frequencies harsh.
How's the clean side of the amp working for you?
Positive progress... :dood:I didn't play any solos that night, but even the solos sound nice and full. The tone compliments the bass.
Positive progress... :dood:
Clarifying from a technical point of view, the phase inverter tube is always part of the power amp circuit. Sometimes only half of a triode type of tube is used for phase inverter duties, while the other half is doing pre-amp duties.The amp is tubed as follows:
Pre-Amp
V1 - JJ-ECC823
V2 - JJ-5751
V3 - JJ-ECC83-MG
V4 - 7025WA
Power Amp
EL-34 Electro-Harmonix Russian Made
Then leave it as it is now. Never change a winning team.I'm curious about the V3/V4 tubes, but I now hate t mess with it. All the bandmembers agreed that's the sound they all like the best...
Then leave it as it is now. Never change a winning team.
Ut oh, Robert had a strokeDu bist sehr klug!!!!