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 configuration has already been found in other manuals, as the LM117 is manufactured by...
This is the radio receiver for the previous infrared alarm radio transmitter. It contains the...
This circuit, from an old publication from the 70s, can be assembled with a 2N2646 unijunction...