Early B-52 Panel - What is the T-18 System?

[2banaviator]

A good friend is building out an early B-52 instrument panel and needs two "T-18 System" modules that were installed on the lower left, see photos. They were used in B-52's B thru F (pre-Arc light).

1) Does anyone know what the function of the T-18 System was?

2) Does anyone have a part number for this bugger?

3) Anyone know where to find any?

Thanks in advance!

[bdk]

A good friend is building out an early B-52 instrument panel and needs two "T-18 System" modules that were installed on the lower left, see photos. They were used in B-52's B thru F (pre-Arc light).

1) Does anyone know what the function of the T-18 System was?

2) Does anyone have a part number for this bugger?

3) Anyone know where to find any?

Thanks in advance!

MIL-T-25250, Military Specification, Tester, In-Flight Control, Type T-18 (19 November 1956, Cancelled 31 July 1965)
This specification establishes the requirements for one type of in-flight control tester, designated as Type T-18.
Drawings, Air Force, 52D23191 Tester, In-Flight Control, Type T-18
Intended Use- The T-18 Tester is intended to be used for in-flight control and monitor of special stores carried on USAF aircraft.