This circuit with pressure sensor was obtained from the Encyclopedia of Electronic Circuits volume 5 of 1995. Note the construction of the sensor with rubber and conductors.
This circuit decodes FSK signals with frequencies of 1070 and 1270 Hz and can be used in data...
Found in Motorola's 1968 power circuit manual, this circuit has a high input voltage and no...
We found this circuit in a Popular Electronics from the 90's. The circuit uses three SCRs to...