12V x 1A power supply (CB21851E)

This stabilized power supply was found in the 1974 Ferranti transistor manual. The power transistor must be mounted on a heatsink.

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Low Power Interface (CB13055E)
In the figure we have a TTL logic interfacing circuit as CMOS logic using a 6N139 optocoupler...
8 V x 5 A Regulator (CB19504E)
This regulator is based on the SFC2308 integrated circuit, which is quite old, therefore difficult to...
Sub audio sinusoidal oscillator (CB8046E)
This oscillator that generates signals below the audible range (sub audio or infrasound) was found...