This biestable circuit was found in a Popular Electronics from the 90s. The circuit has an unusual configuration today, using components of the time.
The sensor of this circuit is a common transistor and the trigger point is set on the trimpot or...
This Power supply sources from 500 to 1,000 mA according the transformar and was found in a...
This circuit uses a Norton operational amplifier to generate 1 kHz pulses with a 1 to 60...