This 1967 General Electric circuit makes use of an array of 3 (integrated) transistors for an amplifier stage. The circuit has a 500 mV output.
This three-chanel remote control transmitter uses a unijunction transistor as low frequency...
This circuit can generate signals in the range from 1 to 20 kHz, depending on the crystal. The...
I found this simple circuit from an English magazine from 1984. The circuit can be easily...