Featured in the February 1949 Radio Electronics magazine, this benchtop instrument generates multi-range audio signals. The circuit has 6 tubes including the rectifier.
This amplifier circuit for instrumentation was found in the manual of the used integrated circuit...
We found this circuit in a 1986 Elettronica Pratica magazine, but the components used are common. As...
Suggested by Popular Electronics, it is a digital amplifier, for pulses with frequencies up to a...