This circuit indicates a digital value through a moving bar. The circuit is TTL and must be powered by 5 V. We find this circuit in a Texas Instruments optoelectronics manual.
We found this circuit in an old American publication from the 1980s. Transistors can be...
The circuit shown uses the LM340 but applies to other regulators. We found this setting in...
This circuit generates signals that depend on resistors and capacitor, producing a tone in a...