The Tektronix 1101 and 1101A are Accessory Power Supplies (probe power supplies);.

Tektronix 1101
Accessory power supply
Tektronix 1101

Produced from 1970 to (?)

Manuals
(All manuals in PDF format unless noted otherwise)

They provide +15 V, +5 V, and –15 V at 300 mA each through a LEMO S-series connector compatible with the probe power outlets on 7000-series scopes.

The 1101 has four and the 1101A two outlets.

The 035-5039-00 is a test unit for the 1101.

Links

Pictures

Compatible probes