Western Electric GA-52830 & GA-53242  
Written by Accutron on 2017-11-29  

Devices included in this entry:

Western Electric GA-52830 germanium PNP power transistor
Western Electric GA-53242 germanium PNP power transistor

Originally developed at Bell Telephone Labs as the M-2012, the Western Electric GA-52830 is an early PNP germanium power transistor, rated at 0.5W dissipation with switching speeds up to 4MHz. This combination of high gain and high speed made the GA-52380 suitable for driving core memory circuits in early transistorized computers, but its status as a developmental part number confined its use to government-funded prototypes. The GA-52830 was employed in a number of early experimental computers, including the MIT Lincoln Laboratory TX-2 and the TRADIC Leprechaun.

Western Electric later introduced the GA-53242, a production version of the GA-52830.

Western Electric GA-52830 Datasheet (PDF)

Western Electric GA-52830 PNP germanium power transistor, manufactured in 1956.

GA-52830 transistor, underside construction and original packaging. Unlike the 2N66 which shares the same package outline, the GA-52830 has a gold plated canister and leads.

Western Electric GA-53242 PNP germanium power transistor, manufactured in 1958.

GA-53242 power transistor with original packaging, manufactured in 1960.

This article is part of the [Discrete Semiconductors] exhibit.

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