This circuit is from a 1972 Motorola publication. The used transistor can still be found, but it can be used equivalent. The circuit is powered by the amplifier with which it must operate.
This circuit was obtained from ancient American documentation based on the application of neon...
This circuit was obtained in a June 1987 magazine Hands-On. It is a circuit that indicates on an...
This high voltage switched generator circuit was found in a 70s American documentation. The...