Tek 1M1

From Stan Griffiths book:

"The 1M1 is a test plug-in used for recalibrating 530, 540, and 550 series oscilloscopes. It loads the power supplies like the various plug-ins to be used, aids in setting the vertical gain, tests the chopped and alternate features, and has a fast-rise square wave generator to test the oscilloscope vertical response. The 1M1 was also known as the TU-7 and by the Tek part number 067-0521-00."

I've never seen a 1M1, but I have a 3M1, which is much the same but for the 560 series of scopes. The 3M1 does not have the built-in square wave generator.

----------------------------------------------- Jim Adney snipped-for-privacy@vwtype3.org Madison, WI 53711 USA

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