This circuit uses a common multimeter on the voltage scale. The calibration of the scale should be done based on transistors with known gains.
We found this simple continuity tester in a 1995 documentation. It uses two LEDs to indicate...
We found this oscillator in the 1994 National Semiconductor Handbook of Linear Applications. The...
This circuit was found in a 90s Electronic Design. The circuit directly controls a triac that is...