This interesting circuit was found in a 1968 documentation. The transistor can be a general-purpose equivalent. The circuit can act as a shield.
The circuit shown is from a Texas Instruments optoelectronics manual. RE depends on the peak...
We found this circuit in a 1997 documentation. Its purpose is to turn a load on or off using...
The gain of this alternating voltage amplifier is 100 times, depending on the 1M-ohm resistor, which...