NE602 Crystal Oscillator (CB26005E)

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

Digital voltmeter 7107 (CB25985E)
The figure shows the basic way to use a 7107, a 3 and ½ digit converter in a digital voltmeter. The way...
Long-Range Wiretapping (CB19321E)
We found this wiretapping circuit in a publication from the 90s. The circuit allows the cable...
Light Meter (CB5306E)
This circuit is from the 80s own LM10 manual. The circuit can be implemented with other...