We found this circuit in the March 1980 Radio Electronics magazine. The circuit used is the HA2400 released at the time. The power supply must be symmetrical.
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...