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Transistor, early British Experimental Device from Pye Radio Research Labs

Early junction transistor (B.T.H.), c.1953

Replica of the first transistor, 1947-2003

1947-2003

Point-contact transistor,type GET 2 c.1953

circa 1953

Transistorised submarine repeater, 1982

1982

power transistor kit type EW57

1958

Ferranti model CV4004 transistors

Transistors

Transistor

Texas 2S131 transistor

2N706A transistor

Texas 2N388 transistor

Point-contact transistor type GET 1, c.1953

"Red Spot" junction transistor

Mullard silicon alloy transistor OC202 (c.1958)

Philco 2N1204 transistor

Transistor suspended in plastic display case

1960-1980

Transistor, 1960-1980

Submarine repeater transistor P.O. type 10A

submarine repeater transistor P.O. type 4A

Model germanium diode built into cryogenic system

1969

Three arm transistor, 1960-1980

1960-1980

Transistor, 1960-1980

Siliconix silicon field-effect transistor

Philco 2N1500 transistor

General Electric 1N2939 transistor

2N645 transistor

Ediswan F/XA162 transistor

Texas 2N711 transistor

Motorola germanium mesa transistor

Texas 2N705 transistor

Texas 2N1142 transistor

Home made point-contact transistor, 1953

Westminster Micro Transistor Radio

1970-1974

RCA 2N247 transistor

"Plastic" transistor incorporating a semi-conducting layer of polyacetylene, as prepared by the Cavendish Laboratory and reported in Nature, September 8th, 1988, pp 137-141

Plastic transistor incorporating a semi-conducting layer of polyacetylene

1988
Model CV4004 transistor

Model CV4004 transistor

Germanium P-N-P transistor GET 105 c.1950

GET105 transistor

circa 1950
matched pair of germanium P-N-P germanium transistors GET 8. c.1950

Germanium P-N-P transistors GET 8

circa 1950