I'm retrofitting a vintage stereo receiver with pretty much everything new except for the tuner stage. I've tried a couple SMPS's, but unfortunately the noise bleeds into the tuner, so I've decided to go linear instead using a basic Antec 400w with a Belleson SPHP regulator on the output. Was wondering if anybody has any experience using one of these regulators?
You can regulate the preamplifier and tuner sections with something as simple as the LT1963A/LT3015 which were the best performing and best sounding of OEM regs. Unless the amplifier section itself has poor PSRR it's better to NOT regulate the output stage.
I have no experience with the SPHP but I take his measurements with a grain of salt.
I have no experience with the SPHP but I take his measurements with a grain of salt.
Ok. I was going to use an lm7915/7815 for the preamp +-15v and a 7812 for lighting, etc. Didn't know power amps were typically fed unregulated power. After a quick read it makes sense, although it seems the amp would be more vulnerable to line fluctuations.