Found in an 1989 R-E Experimenters Handbook, this circuit produces several sound effects that can be modified. The signal must be applied to an external amplifier.
This circuit was found in the 1967 RCA SCR manual. The circuit generates approximately 300 V at a...
Found in American documentation from the 90s, this circuit can be applied to other operational ones. We...
We found this circuit in a technical documentation from the 70s. It can be implemented with more...