This interesting circuit was found in a 1968 documentation. The transistor can be a general-purpose equivalent. The circuit can act as a shield.
This circuit was originally designed with the operational 747 which is rare today. However, the...
This circuit was found in a 1975 technical publication. The circuit can be designed with 741...
The TDA2613 is the mono version of the TDA1521A and has pinouts compatible with an integrated...