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.
Other CMOS gates can be used in this sensor, which we found in the July 1995 Electronic Now...
This power supply is not protected from shorts in the output. Output voltage is given by the...
This circuit came out in a publication called Electronics Handbook of 1993. Q1 can be a 2N2222 or even...