Turning a Solenoid On and Off (MEC147E)

Figure 1 - Controlling a solenoid.

Function Generator 566 (CB19526E)
This circuit found in a European publication from the 1980s, is based on PLL 566. The frequencies...
Audio Frequency Triplicator (CB6313E)
This circuit found in a 1965 Electronic Design multiplies the frequency of a 400 Hz signal...
Unijunction Pulse Generator (CB5917E)
This circuit uses a complementary unijunction transistor that is not the common type. The...