This high impedance circuit was found in 1967 documentation by Ferranti. The original operational amplifier is from that time. The circuit can be implemented with modern equivalents.
This is an amplifier for recorder and return containing preamplifier and power amplifier with...
This circuit uses a 7-segment display to indicate the logic level of a test circuit. The power...
The circuit shown in the figure has elements for maximum gain at maximum speed. By setting the...