Artifact Details

Title

Litton Radar chips

Catalog Number

102711358

Type

Physical object

Manufacturer

Texas Instruments Incorporated (TI)

Identifying Numbers

Other number 252A03 On small blue circuit
Other number 70Z800 On small black circuit
Other number 900077-6 On small black circuit
Other number SN270 On smallest circuit
Other number SN275 On largest circuit

Dimensions

overall: 1/8 in x 1/2 in x 1/2 in

Description

Beginning in 1962, the Litton AN/ASA27 radar computer indicator carried aboard the Navy’s W2P-1 early warning radar aircraft was the first full scale commercial application of TI Series 51 logic circuits. The SN275 was a custom variation using Texas Instruments’ “master slice” technique. The block with two transistors is the function replaced by the IC. The board with four mounted flat pack units is encapsulated in the blue module.

Category

Component/Semiconductor/IC

Credit

Gift of D.C. McKenzie

Lot Number

X5149.2009