This circuit was found in the November 1966 issue of Electronics Now magazine. It uses an LDR as a sensor and has a Bargraph scale with the well-known LM3914.
This 9 W amplifier with transistors from the 60's was found in documentation of the time. The...
The purpose of this 1965 Radio Electronics circuit is to observe cycloid waveforms on a standard...
In this circuit found in the December 1972 Radio Electronics magazine. R can be from 1k to 22k,...