This circuit was found in the magazine of radio amateurs 73 in a 90's edition. The components are current and the transistor is of general use.
We found this circuit in a 1996 Texas Instruments technical publication. However, the circuit is...
This circuit is used to test PNP or NPN transistors giving the status indication through LEDs. The...
This generator can be triggered by signals of any waveform. The pulse duration is set to R6 and...