This 1 to 40 MHz amplifier is from a 1969 Motorola documentation. The components are of the time but admit modern equivalents.
This circuit is from an Electronics World of 1967. The circuit slows down the activation of a...
This circuit for analog TV was found in a 90s EDN. The integrated circuits used are from that time...
This circuit allows the use of a milliammeter in the measurement of low frequency alternating...