[Simon] wrote in to tell us about a headphone tube amp ... schematics at diyaudioprojects.com that were actually featured on Hackaday in the past. [Simon’s] design adds an on board regulated ...

The pentode is controlled with the pre-amplified signal and acts as a power ... schematic should be all you need to get started. If you want some more background information about tube amps ...

NAMM 2025: AmpRx has unveiled Brownie, an voltage optimising power supply that’s designed to give your tube amp exactly what ...