This oscillator uses a crystal to set the frequency. The operating limit of the unijunction is in the order of 100 kHz. Power supply can be between 10 and 20V.
This circuit is from a Radio Electronics from October 1963. The transistor is a power transistor of the...
We found this circuit in an English publication from the 80's. The circuit is perfectly current,...
This circuit is from the 1977 RCA CMOS Integrated Circuit from the RCA of 1977. The power supply of...