The purpose of this 1965 Radio Electronics circuit is to help observe cycloid waveforms on an oscilloscope. The circuit uses only passive components.
We found this audio preamplifier circuit with a 741 operational in a 1976 publication. However,...
This circuit operates at a frequency of 80 KHz and modulation up to 60 kHz. The circuit is from...
Found in Linear Technology documentation from the 1980s, this generator uses integrated circuits...