Triode voltage amplifier (T386E)

This typical voltage amplifier step with the 6J5 was found in a modern tube publication.

Power Zener (CB216E)
Using in operational amplifier is possible to increase the dissipation power of a zener. This...
Color Bar Generator (CB4649E)
This old circuit is from the era of analog televisions, serving for technicians to make...
Adafruit Raspberry Pi Perma Proto PCB Kits
Adafruit Raspberry Pi Perma Proto PCB Kits Adafruit kits are available from Mouser Electronics...