This circuit with a 4046 PLL was found in the December 1989 issue of Radio Electronics magazine. The circuit produces the clicks of a roulette wheel at decreasing speed.
Using the NE5205 integrated circuit this circuit was found in the May 1987 issue of Radio...
This circuit was found in a 1980s American schematic. Transistors can be modern equivalents. The...
This circuit is from a 1972 Motorola publication. The used transistor can still be found, but it...