Found in a 1990s Popular Electronics, this circuit uses two transistors to boost the power of a 741 with audio signals. The power depends on the transistors used, which can be general-purpose types.
The presented circuit generates a pulse whose delay in relation to the input depends on RC. These...
Found in documentation from the 70s, this circuit makes use of SCRs of the time. Modern equivalent types...
This circuit was found in a Linear Technology manual from the 1990s. The circuit makes use of the...