The Tektronix 021-0127-00 Calculator interface is a microprocessor-based intelligent interface to connect the Tektronix 31 calculator to the 7704A/P7001 digitizer.

Tektronix 021-0127-00
31 Calculator Interface for P7001

Produced from 1973 to (?)

(All manuals in PDF format unless noted otherwise)

The complete system was called "DPO 3100 Series" and was presented to the public on 11 September 1973 at WESCON.