The power supply for this 1972 circuit must be symmetrical and the BC549 transistors. Care with the layout is important to avoid capturing tinnitus.
The circuit shown here is a CCO. The frequency here depends on the current through the...
This circuit can be used with the CIR12642E TTL Roulette, or other game circuits that must draw...
Found in Linear Technology documentation from the 90s, this circuit uses components from that...