This circuit makes use of a mechanical delay line to produce the reverberation effect. This is a '80s setup, showing both channels for a stereo system.
This flip-flop controlled by an LDR-type photocell was found in Radio Electroinics magazine from...
With this circuit from an old 1973 publication it is possible to use a small speaker as a...
This circuit is from a manual of JFETs and can be implemented with the BF245 and for the bipolar...