This circuit was found in a 1969 US documentation. It provides a signal that can be externally programmed as suggested circuits. The circuit can be used as a shield.
This amplifier for effects on musical instruments can be mounted with BC549 transistors. The...
This circuit was found in documentation from the 1980s. The circuit uses several components of the...
The presented circuit can use an equivalent transistor like the BC548. The configuration, which [is...