Broadband Amplifier (CB21859E)

This circuit has a voltage gain of 30 times and passband of 14 MHz. The circuit is from the 1974 Ferranti transistor manual.

Moving scale DC voltmeter (CB7341E)
This circuit was found in an American publication in 1966. The circuit uses a general-purpose FET that...
Simple Alarm (CB19221E)
This circuit has no lock, but it has a very low consumption feature in the standby condition. We...
FM Local Oscillator (CB4293E)
This is the typical circuit of a local oscillator for a superheterodyne FM receiver. The circuit...