Obtained in MIT documentation, this 4-stage circuit has high gain for small signals. The power supply sources 150 V.
This circuit is connected to the sum key of a common calculator. Adjusted to produce a pulse per...
This circuit can generate signals in the range from 1 to 20 kHz, depending on the crystal. The...
This simple, unregulated power source with full-wave rectifying is for small appliances that do...