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.
In the figure we have an improved method of varying the voltage of a 7812 regulator. The circuit is...
This amplifier operates with a current amplifier for audio distribution lines. The power MOSFET can...
This circuit was found in Popular Electronics from 1992. The circuit has steps determined by...