Modulator Amplifier (V1574E)

This circuit is from a 1938 tube manual. Transformers are the critical components. Component values are given.

60 Hz Rectangular Signals (CB10687E)
This circuit was found in a 1963 publication. Its purpose is to convert sinusoidal signals from...
INA240 – Zero Drift Sensors Amplifiers (COM167E)
January 2017 - Through Mouser Electronics Texas Instruments is launching its new zero-drift...
20 kb/s Fiber Optic Receiver (CB13534E)
This fiber optic receiver was obtained from a 1978 documentation. We can use any modern...