Suggested by Mullard in a1969 documentation, this circuit generates the erasure signal for tape recorders of the time. Transistors can be modern equivalents like BD136 and BD136.
In the circuit shown in the figure we have the way to excite a small speaker from a TTL output. The...
This fuzz uses only one transistor that can be the BC548. Signal input and output cables must be...
This circuit is from a 1977 documentation. It is powered by the power supply of the circuit under...