This circuit, to control air conditioning systems, was found in July 1984 Radio Electronics magazine. The circuit is for old types of the time that did not have microcontroller control.
This oscillator for receiving SSB signals is intended for receivers with IF of 455 kHz. The...
This thermostat was found in a 1997 publication. It can be powered by 6 V with the use of a...
In the figure we have the basic configuration for interfacing TTL logic with CMOS logic. The...