Found in an American publication of 1968, this circuit makes use of a pilot light of the time. It can be replaced with LED with appropriate series resistor. Transistors may be modern equivalents.
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...