This circuit was found in a Hughes manual of 1068 using a MOSFET of the time. The circuit can be adapted to use modern equivalent MOSFETs.
We found this small FM transmitter in an Australian publication from 1991. The 3-transistor...
We found this circuit in a 1994 Linear Applications Handbook by National Semiconductor. The LM10...
With the use of a cascade transistor, the dynamic response of a phototransistor can be increased, as...