TRANSISTOR MUSEUM

Historic Transistor Photo Gallery

 

 

 

Transistor Size (3/16 Diameter X 5/16H)

Date Code 648 (1956 Week 48) on Back

 

 

CBS HYTRON 2N180

 

TYPE

Germanium PNP Alloy Junction

General Purpose

 

USAGE

Commercial Audio/Hobbyist

 

DATE INTRODUCED

1956

 

CASE STYLES

White Metal (Early)

Silver Metal (Later)

 

AVAILABILITY

Rare (Low Volume Production)

 

 

HISTORIC NOTES

In the early 1950s, CBS purchased the Hytron vacuum tube manufacturing company located in a suburb of Boston Massachusetts, as part of a plan to enter the rapidly growing semiconductor business. Beginning in 1953, such products as point contact germanium diodes and transistors, as well as alloy junction transistors were being manufactured by the acquired company, known as CBS Hytron. Starting in 1956, the 2N180 and a series of related general purpose alloy junction transistors began to be appear the series included the PNP 2N180 and 2N181, and the NPN types 2N182, 2N183 and 2N184. These transistors were never produced in large quantities, although a line of germanium power transistors manufactured at the same time, such as the 2N155, were quite successful.

 

 

 

Copyright 2004 by Jack Ward

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