Fast Monostable Sensor (MEC208E)

Figure 1 - Fast monostable.

Battery Low Indicator (CB4989E)
The components of this circuit are from the time of its publication in the 1980s. Modern...
12 V x 5 A Power Supply (CB1508E )
This traditional configuration from a simple 12 V source is from a 1977 publication. The...
Divide-by-7 TTL (CB225E)
This circuit shows how to use the TTL IC 7790 to divide a square TTL signal by 7. Duty cycle is...