Designed for the audio track, this circuit was found in a Popular Electronics from the 90's. Other operational can be used and R7 can be 470 k. The frequency is 1 kHz.
This 600 W reducer uses SCRs and a switching system. The circuit is from Motorola's 1975...
We found in an old documentation how to use a 555 as a monostable key. The circuit should not be...
This circuit can be implemented with more modern operational amplifiers like the 741 and its...