Found in an American publication from 1968, this circuit generates pulses at a rate of 2,500 per second. The transistor can be replaced by a modern equivalent.
From an old manual of unijunction transistors, this oscillator generates different tones when the...
We found this circuit in an article in Radio Electronics magazine from November 1971. The circuit has...
We found this circuit in the 1977 RCA Solid State ICs. The circuit consists of a current amplifier with...