I have a Mark IIb, Mark III green and Mark V 90.
They are all a bit different, the Mark V gets played the most because of its versatility, but the Mark III sounds the most aggressive. The Mark IIb sounds the most vintage.
He replaced the variable resistors with fixed resistors, and added a voltage booster straight out of the voltage booster data sheet.
It's a shame as the TC integrated preamp is actually a fantastic circuit as a preamp or boost.
And the zuul is lifted from the Marshall KK and YJM jcm800 built in...
You're not wrong. The blue and green stripes had a circuit mode for more high end compared to the earlier black/red/purple which matched the IIC+ circuit.
I thought he said "the amp has been optimised" for V30 speakers, or did he say the transformer? I'm not sure how one optimises a transformer for V30s yet simultaneously builds an identical transformer. Tweaking the amp circuit to sound better with V30s would be the normal thing to do, but the...
Ive worked on lots of Engls. I agree 100% they are made to a price point, everything is PCB mounted and machine placed which drops the manufacturing cost dramatically. Not outright a bad thing, but it does mean that care is required for swapping tubes which places a mechanical force direct to...
If you listen to the tone talk interview, the cost of the DeYoung was largely because the company got sold to a bigger entity, and the SLO transformer became a off the production line special order.
Soldano said he gave the transfomer specs to the new manufacturer, iron type, wire, winding...
Does your blue stripe have the C30 capacitor installed?
I have a green stripe which didnt and it sounded more aggressive than my IIC+. I tried adding a c30 cap (1nF) and think it prefer that the most being slightly smoother, matches the iic+ circuit now.
If you are intending to mute the amp input when you are measuring, then there will barely be any power at the output. It's not until the power amp starts working hard that any heat is generated in the output load. So if you're just intending to measure voltages with a muted input then you dont...
Ah no it's the 60W one as it doesnt have the midboost switch thing if that matters. Your amp builder guy would be able to add something comparable no doubt. I'm not sure how you would add a switch for that into the PB anyway? Unless the midboost is a tone stack mod, in which case the PB has a...
Yes the two amp circuits are very similar, you could mod either PB lead channels easily into a FB without affecting the clean and crunch channels either.
However the pcb is pretty tight and not very friendly to work on so some care would be needed.