mideel
New Head-Fier
- Joined
- May 14, 2009
- Posts
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- 10
I recently bought MrMajestic2 balanced EHHA kit and my build is going along nicely:
The build includes o22 PSU with 100VA 2x30V Trafo, 12.6V o11 heater with 25VA 2x15V Trafo. All gain resistors are socketed, for tweaking. I'm still undecided on the volume control. I'm thinking of using two shunted alps pots at first and then maybe doing something crazy ie. using 17 switches and a PGA2320. What ever I end up doing case work is going to be a pain
But at least I'm making good progress, the o11 just tested OK, I used 12V zener diode (measured 12.01V) and a 220kohm resistor to set the voltage at the output to 12.6V.
The build includes o22 PSU with 100VA 2x30V Trafo, 12.6V o11 heater with 25VA 2x15V Trafo. All gain resistors are socketed, for tweaking. I'm still undecided on the volume control. I'm thinking of using two shunted alps pots at first and then maybe doing something crazy ie. using 17 switches and a PGA2320. What ever I end up doing case work is going to be a pain
But at least I'm making good progress, the o11 just tested OK, I used 12V zener diode (measured 12.01V) and a 220kohm resistor to set the voltage at the output to 12.6V.