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M015 Block diagram

The Tektronix 155-0012-00 (M015) is a Tek-made Z Axis Logic chip in a 16-pin DIP, designed by Les Larson.

Under control of the horizontal switch drive, it selects the beam intensity - A or A intensified by B.

Additional functions are chop blanking for vertical and horizontal, external and plug-in Z axis input, and fast limiting of the composite signal. The signals are further limited at slow sweep speeds to prevent burning of the CRT.


Used in