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 shield circuit uses a common CMOS port. The voltage depends on the interfaced logic. The...
This logarithmic gain operating configuration was found in the June 1994 Electronics Now magazine. The...
This circuit was found in the Spanish magazine No longer in existence, Mundo Electrónico, in a...