This circuit was found in Radio Electronics magazine from August 1966. The transistors are from the time and the power supply from the power grid is included.
This circuit was found in Maxim documentation from the 1990s. The RC circuit determines the...
This Vienna bridge multi-band oscillator circuit was found in a 1974 Ferranti transistor manual. The...
This circuit can be used as a shield to control the matrix flow of 100 LEDs from a single output of...