This simple bridge circuit can be used for impedance or resistance measurement using a high impedance earphone as an indicator. The circuit is from an American 80's documentation.
We found this circuit in the 1977 RCA Solid State ICs. The circuit consists of a current amplifier with...
This circuit was found in the 1967 RCA SCR manual. The circuit generates approximately 300 V at a...
We found this circuit in a 1978 publication. It is possible to detect the emission of infrared in remote...