This circuit maintains on a flashing LED at a frequency determined by the capacitor. The unijunction transistor can be 2N2646.
With the use of a very sensitive and lockable relay this circuit can be used in intervals of 15 to...
We found this circuit in the 1982 SGS Linear Integrated Circuits manual. The transistor supports...
This circuit generates trains of pulses in regular intervals determined by R1 and C1. The...