In fact, this 1967 Electronic Design circuit generates two symmetrical ramps whose frequency depends on the values of the components used. Modern equivalent transistors can be used.
Pressing and releasing S1 remains one of the neon lamps. Which one will be, it is not possible to...
This circuit, which appears on our website in different versions, uses an integrated VU which is...
This VCA was found in the July 1988 issue of Radio Electronics magazine. It uses an OTA op amp and...