We found this circuit in a 2002 documentation. This die shows numbers 1 to 6 on a common anode display when the switches S1 and S2 are pressed. The circuit can be powered by voltages from 5 to 12 V.
This circuit is like the previous one except that it can be triggered electronically. The circuit is...
This amplifier, to detect biological signals in implanted transmitters, uses transistors such as...
We found this simple preamp circuit with only one transistor in a documentation from the 70s. The...