TRANSISTOR MUSEUM  

Historic Transistor Photo Gallery   

 

 

 

Transistor Size (1/2” L X 1/4”W X 1/2” H)

“Bath-Tub” Oval Case

Date Code 921 (1959 Week 21) on Back

 

 

Cardboard Packaging

 

 

 

 

GE 2N169/169A

 

TYPE

Germanium NPN Rate Grown Junction

High Freq

 

USAGE

Radio IF Amp 

 

DATE INTRODUCED

1955

 

CASE STYLES

Black Metal with Pinched Top (Early)

Black Metal with Flat Top (Later)

 

AVAILABILITY

Common (High Volume Production)

 

HISTORIC NOTES

General Electric was an early industry leader in germanium transistor technology and was a major producer of these devices throughout the 1950s and 1960s.  GE also manufactured transistor radios, beginning in 1955, and so had a ready market for transistors designed for radio use.  The 2N169 was introduced in 1955 and was designed for use as a radio IF amplifier; the 2N169A was a special high voltage unit intended for second IF stage amplifier service.    These transistors were used in a wide variety of radios made by different manufacturers, including the classic Zenith model 800. The 2N169/169A were available well into the 1960s, at a moderate cost – approximately $2.00 from the Lafayette and Burnstein-Appleby catalogs in the late 1950s. 

 

 

 

 

 

Copyright © 2005 by Jack Ward

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