I’m working on an external power supply that can power either a 2-channel or 4-channel version of my tube preamp and/or compressor. Would like it to be a universal plug and play for any of the designs I’m building.
Ian’s 12v and 48v designs are working great, providing there is ample heatsinking on the 12v. But I’m stumped on bein able to make a quiet regulated B+ psu.
I’ve tried the IRF820 MOSFET design, which just isn’t quite quiet enough. It’s “okay” but a traditional RC design is quieter.
Does anyone have any suggestions for a schematic to try? I am powering up to 4 channels, so 225-275vdc at around 100ma max.
Ian’s 12v and 48v designs are working great, providing there is ample heatsinking on the 12v. But I’m stumped on bein able to make a quiet regulated B+ psu.
I’ve tried the IRF820 MOSFET design, which just isn’t quite quiet enough. It’s “okay” but a traditional RC design is quieter.
Does anyone have any suggestions for a schematic to try? I am powering up to 4 channels, so 225-275vdc at around 100ma max.