Perforated tape reader (CB7417E)

Found in General Electric documentation from the 1980s, this high speed perforated tape reader circuit has a maximum speed of 2000 bits per second.

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Variable mixer (CB9032E)
This dynamic mixer allows for smooth adjustment of the signal's passage from one channel to...
Power Switch (CB387R)
Using this circuit a low current switch can be used in the control of heavy duty loads, powered...
Reflected Power Adapter and Monitor CW (CB3884E)
We found this circuit in an old American documentation for hams. The circuit serves as a telegraph...