Found in an Electronic Design from the 90's, this circuit indicates three voltage levels by activating the LED in 3 modes: off, flashing and on for high voltage.
The selected circuit was found in the Texas Instruments optoelectronics manual. RC and C1...
The operating range of this circuit ranges from 0.5 to 2 MHz and its gain is 11dB. Transistors can be of...
This digital buffer was found in the November 1993 issue of Electronics Now. The power supply...