technomancer":3df2af1u said:
NewWorldMan":3df2af1u said:
slyym":3df2af1u said:
So have you actually taken a real one apart? I wonder if you could figure out how to tune the low cut on it.
Or, call me crazy here...you could buy a TC Integrated Pre or Booster+ Line Driver and then tune the low cut wherever you wanted by turning the bass knob...
Yeah the tuning is really complex to match the 33... bass off and treble full
I've got my TC clone I built and an actual 33 here side by side and the 33 has a touch more volume when turned all the way up but that's it. May be because my clone is based on a pc board I grabbed online and not exact to the TC schematic IIRC.
I think the rullywow pcb uses a charge pump to double the voltage, so minus the voltage drop from the diodes you only really get like 17v or so, unless you used an LT1054 charge pump so you can feed it more than 9 volts without blowing the charge pump.
From the pics I’ve seen of the 33, it looked like the charge pump was set up to quadruple the voltage, so 30 to 33 volts. That’s just a guess though, based on the amount of diodes and caps around the charge pump on the pcb. Voltage does have a big effect on the headroom, but a minor one over 18 or so volts.
I built a clone from the schematic available online, and it sounds the same as my real one, except it has an on/off switch and a light, which is so much more convenient. I considered making one with the bass and treble fixed, but I do like moving the controls around depending on the amp I’m using.
Also, Fredrick posted a short video on his Instagram a while ago, of all his integrated preamps, BLD’s, 33 prototypes and then the final 33 at the end. The settings on the integrated preamps were bass at 0, volume at 10, and treble looked to be around noon to 1:00 (hard to tell from the angle, def not on 10).
But who knows, maybe he changes settings often on the integrated preamps.
