This unijunction transistor trigger pulse generator circuit was found in the March 1973 issue of Radio Electronics magazine. Typical values for Re CT are 100k and 220 nF.
This oscillator was found in Radio Electronics from the 90s. C1 and C2 have 2,700 pF and the...
We found this circuit in a 1967 El3ectronics World. The transistors are from the era but can be...
The operational 714 (not the 741) is an old Raytheon type that is no longer common today. The...