[Vasily Ivanenko] has been designing a power supply for a clean jazz guitar amplifier, and has helpfully documented the process. For a guitar amplifier which prides itself on clean tones ...

The stereo amplifier promises improved performance ... amp — as well as an upgraded toroidal transformer and improved power supply. This promises to deliver a higher-fidelity sound with less ...

TEAC has announced a brand new stereo power amplifier, the AP-507 ... there's a large toroidal transformer in the fanless power supply. Connections are XLR and RCA inputs plus 12V trigger in ...