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The '''Tektronix 203-0089-90''' (M89) is a Tek-made vertical output amplifier integrated circuit designed by [[Jim Cavoretto]] and [[Einar Traa]]. | The '''Tektronix 203-0089-90''' (M89) is a Tek-made vertical output amplifier integrated circuit designed by [[Jim Cavoretto]] and [[Einar Traa]]. | ||
The M089A is almost identical to the M102A. Except for R11 in the M102A, the two circuits are the same. | |||
==Used in== | ==Used in== |