We found this test circuit in the November 1999 issue of Electronics Now magazine. The circuit is to be connected in series with a load rated for the diac current.
We found this circuit in an old American publication. The transistors can be BC558 and diode 1N34....
This simple circuit operates with only 1.5 volts of a battery and detects low resistance making a...
The cascade connection of two flip-flops allows division by 4, as shown in the figure. Note that...