This sound effect circuit is from a Radio Electronics magazine from December 1969. The transistors support equivalents and the power is provided by a battery to reduce the possibility of noise.
This circuit with the CA3130 has a feedback system that works as a lock. The circuit is from a...
This guitar effect circuit uses components that are still common in our market. We found the...
This circuit is from a 1967 US publication. The configuration can serve as a basis for designs...