Guitar amplifier with tremolo using ECC81 (12AT7), ECL86 (or PCL86), and EZ81.
This small amplifier project began thanks to a blog reader, Sergio, who contacted me via email to see if I could help him design a small guitar practice amp using…
Circuits, hardware, and classical computing.
This small amplifier project began thanks to a blog reader, Sergio, who contacted me via email to see if I could help him design a small guitar practice amp using…
Continuing with the restoration of the television, the first step I take is to check some of its valves using the μTracer3+: EF183 valve: As can be seen in the…
This TV came into my hands through a local online ad — I saw it at a good price and immediately thought it had to be mine. A valve (tube)…
For a long time now, I’ve been wanting to have a tube tester—something I’ve never owned—and also a vacuum tube curve tracer, since both would be incredibly useful for me.…