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The Tektronix 203-0130-90 (M130) is a Tek-made preamplifier integrated circuit. It was designed by Jim Woo.

The chip contains one channel with gain switch, gain calibration, positioning, trigger pick-off, and channel switch.

Two chips are combined on a ceramic substrate with heatsink and printed resistors to form the 155-0155-00 (H332).

Used in