E)
This circuit uses a reversible double contact relay to obtain the trigger lock with the unijunction pulse. The relay must be of the sensitive type with at least 150 ohms of coil.
We obtained this circuit from a 1993 documentation. The circuit has 9 current ranges that are...
This FM receiver tuning step circuit was found in a 1960 documentation. No information about the...
This circuit consists of two stages that each shift 180 degrees the signal. The circuit was...