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.
This circuit can be used with motors or resistive loads, such as heaters and incandescent lamps....
The output of this circuit can be coupled to a radio control transmitter to perform a...
Using an RCA integrated circuit, this instrumentation amplifier was found in a November 1970 Radio...