This circuit is used to generate pattern bars on an analog television screen for calibration purposes. The circuit is from a 90s 303 Circuits.
This very high input impedance circuit is suggested by Texas Instruments. The circuit can be...
We found this circuit in the August 1994 issue of Electronics Now magazine. The circuit is based on...
This bargraph circuit using LM3914 was found in the October 1980 Radio Electronics magazine. Note...