Hughes suggests this circuit in a 1968 documentation. The circuit uses old transistors that can be replaced with equivalents. MOSFET is the critical component of the circuit.
This continuous wave transmitter (CW) can send signals in the 30 to 100 MHz band, depending on the...
This 4-20 mA current interface was found on a 90's EDN. The components used are not common today and...
Indicated for vinyl media recovery, this circuit is from the 80's, having been found in an...