AC Switch with Triac (CB25855E)

The load controlled by this circuit depends on the triac used. The circuit is from Electronics Now magazine from June 1995.

1 MHz Pierce Oscillator (CB8050E)
The frequency of this Pierce oscillator, found in 1969 documentation, depends on the crystal. The...
Nicad Charger (CB14020E)
We found this Nicad cell charging circuit in an English publication from the 1970s. The circuit can...
Constant Current Source for SMA - II (CB1245E)
In the figure we have a constant current source for Shape Memory Alloy in wires or Alloy with...