211

The Tektronix 211 is a 500 kHz single-channel miniaturized analog battery-powered oscilloscope.

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500 kHz miniature analog scope Tektronix 211 Produced from to Manuals Tektronix 211 Manual (PDF) (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The probe input first goes through compensated attenuators and then into one gate of Q18, a dual JFET. The drains of the dual JFET drive the inputs of an amplifier IC, U25, part number 155-0057-00.

Triggering is done using a 155-0048-01.

The 211 uses a 155-0047-00 for X and Y amplification until the final stages, which use NPN transistors to drive the CRT deflection plates.