10 MHz counter (CB20128E)

This meter has a 0.001% tolerance and was found in an old American publication. The circuit has a selectable output.

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Variable active cycle 555 oscillator (CB8094E)
Found in an Electronics Now from the 90s, this circuit appears elsewhere in this section and...
Binary Demonstrator (CB24244E)
This TTL circuit was found in the February 1973 issue of Radio Electronics magazine. The power...
Schmitt Trigger (CB999E)
This circuit was found in an old publication about transistor. The original trasistors are...