Using two unijunction transistors, this circuit found in Electronics World generates linear sawtooth signals. The frequency depends on the capacitors being around 500 Hz.
Found in the 1969 neon lamp documentation, using neon lamps this circuit provides 18 V regulated...
This circuit is from an old RCA documentation. The circuit sources a charging current of 1 A and...
We found this circuit with a Q factor of 25 in the Linear Applications Handbook by National...