So I am working on something that can be used for Ivey's 2N2222S phonostage, the opamp Hagerman Bugle phonostage and Pass Labs B1 with Korg triode tube preamp.
I built Elliot Sound Products cap multiplier out of spare parts for a 24V output and have a few questions if anyone has any comments or opinions.
I attach a schematic.
And here are my questions:
1. I don't understand how the voltage output is adjusted. Can anyone give me a hint? I'm useless with transistors.
2. What I end up with rectified voltage is always a mystery to me. The overspec'd transformer and bridge gives me 28.8Vdc. Where I guess I would have expected 31.2V [(23VAC x 1.41) -1.2]. Oh well I was hoping for 27V rectified volts
3. Am I on the right track for a good power supply for a phonostage or preamp?
Thanks much,
Dan
I built Elliot Sound Products cap multiplier out of spare parts for a 24V output and have a few questions if anyone has any comments or opinions.
I attach a schematic.
And here are my questions:
1. I don't understand how the voltage output is adjusted. Can anyone give me a hint? I'm useless with transistors.
2. What I end up with rectified voltage is always a mystery to me. The overspec'd transformer and bridge gives me 28.8Vdc. Where I guess I would have expected 31.2V [(23VAC x 1.41) -1.2]. Oh well I was hoping for 27V rectified volts
3. Am I on the right track for a good power supply for a phonostage or preamp?
Thanks much,
Dan
