This circuit converts a constant input current intensity into a voltage given by Vo = -R x I. T1 must be equal to R. The operational admits equivalent.
This sensor circuit from a 1967 Ferranti documentation uses components from the era. The circuit...
This is the receiver for the previous circuit transmitter. Similarly, no information about the...
Found in a 90s Popular Electronics, this circuit uses two PLL tone recognizers to trigger by touch an...