NE602 Crystal Oscillator (CB26005E)

This oscillator reaches 50 MHz with an overtone crystal. The circuit is from Electronics Now magazine from February 1997.

5 V Lamp Dimmer (CB13464E)
We found this circuit in a 1977 CMOS integrated documentation. The circuit also works with 6 and...
Binary Test (CB17400E)
Photo diode sensor switch (CB8335E)
This circuit is from a 1966 NASA documentation. The circuit uses a photodiode as a sensor. The other...