This circuit was found in documentation from the 1970s. The transistor supports modern equivalents. L1 with C4 determines the frequency range of the signals that will be produced.
This common configuration of voltmeter with differential pair of FETs was obtained in the 1994...
This circuit was developed to test suspect 4001 and 4011 integrated circuits. The circuit is from...
This servo circuit was found in 1969 Motorola documentation. Integrated circuits and transistors are...