GEC Semiconductors: Vintage Transistors / Diodes Collection

This site contains my collection of vintage transistors and diodes, most of them included with their original package or sleeves. The devices are produced in the late fifties and early sixties except the MOSFET's from Sony they where made in 1975. Enjoy the collectables and click on the picture links for more details. Suggestions regarding these transistors are welcome. I'm always looking for new semiconductor items to complete my collection, so if you would like to sell or exchange something, please contact me, jan@transparentsound.com.


EW80 GEC Type : EW80, PNP Germanium Transistor Low Power

Manufacturer : GEC
Year : End Fifties
Package, Case style : Carton box, Black Metal Can
Spec's :

Vceo(max)=- ?V, Vcbo(max)=- ?V, Hfe= ?, Ic=- ?mA, Icbo=5uA, P= ?mW, ft= ?kHz, Cobo= ?pF

  : Picture1, Picture2, Picture3

GET67 GEC Type : GET67, PNP Diffused Germanium Transistor

Manufacturer : GEC Semiconductors 
Year : Perhaps mid fifties
Package, Case style : None, TO-8var
Spec's : Vceo=-?V, Vcbo=-?V, Hfe=?, Ic=-?mA, P=?mW
Photo's : Picture1, Picture1,

GET101 GEC Type : GET101, PNP Germanium Alloy Transistor

Manufacturer : GEC Semiconductors also produced by Mullard Ltd.
Year : Early Sixties
Package, Case style : None, GEC & Mullard: Red plastic over metal tube
Spec's : Vceo(max)=- ?V, Vcbo(max)=- ?V, Hfe= ?, Ic=- ?mA, Icbo=?uA, P= ?mW, ft= ?MHz, Cobo= ?pF
Photo's : Picture1

GET102 GEC Type : GET102, PNP Germanium Alloy Transistor

Manufacturer : GEC Semiconductors also produced by Mullard Ltd.
Year : Early Sixties
Package, Case style : None, GEC & Mullard: Red plastic over metal tube
Spec's : Vceo(max)=- ?V, Vcbo(max)=- 30V, Hfe= 100, Ic=- 1000mA, Icbo=?uA, P= 200mW, ft= 1.5MHz, Cobo= 90pF
Photo's : Picture1, Picture2

GET103/CV7074 GEC Type : GET103, PNP Germanium Alloy Transistor

Manufacturer : GEC Semiconductors also produced by Mullard Ltd.
Year : Early Sixties
Package, Case style : None, GEC & Mullard: Red plastic over metal tube, R11, CV-series: Grey plastic over metal tube
Spec's : Vceo(max)=- ?V, Vcbo(max)=- 30V, Hfe= 55, Ic=- 1000mA, Icbo=?uA, P= 200mW, ft= 1MHz, Cobo= 2pF
Photo's : Picture1, Picture2

GET104 GEC Type : GET104, PNP Germanium Alloy Transistor

Manufacturer : GEC Semiconductors also produced by Mullard Ltd.
Year : Early Sixties
Package, Case style : None, GEC & Mullard: Red plastic over metal tube, R11
Spec's : Vceo(max)=- ?V, Vcbo(max)=- 30V, Hfe= 55, Ic=- 1000mA, Icbo=?uA, P= 200mW, ft= 1MHz, Cobo= ?pF
Photo's : Picture1

GET115 GEC Type : GET115, PNP Power Germanium Alloy Transistor

Manufacturer : GEC Semiconductors also produced by Mullard Ltd.
Year : Early Sixties
Package, Case style : None, GEC: TMM6 Black Metal
Spec's : Vceo(max)=- ?V, Vcbo(max)=- 15V, Hfe=30, Ic=- 1000mA, Icbo=?uA, P= 800mW, ft= 1MHz, Cobo= ?pF
Photo's : Picture1, Picture1,

GET120 GEC Type : GET120, PNP Power Germanium Alloy Transistor

Manufacturer : GEC Semiconductors also produced by Mullard Ltd.
Year : Early Sixties
Package, Case style : None, GEC: TMM6 Black Metal
Spec's : Vceo(max)=- ?V, Vcbo(max)=- 30V, Hfe=20, Ic=- 1000mA, Icbo=?uA, P= 800mW, ft= 1,4MHz, Cobo= ?pF
Photo's : Picture1, Picture1

GET571 GEC Type : GET571, PNP High Power Germanium Alloy Transistor

Manufacturer : GEC Semiconductors 
Year : Early Sixties
Package, Case style : None, Metal case MD2
Spec's : Vceo(max)=- ?V, Vcbo(max)=- 16V, Hfe= 30, Ic=- 12A, Icbo=?uA, P= 18W, ft= ?MHz, Cobo= ?pF
Photo's : Picture1, Picture1

GET691 GEC Type : GET691, PNP Germanium Transistor (New)

Manufacturer : GEC Semiconductors 
Year : Early Sixties
Package, Case style : None, Green plastic over metal tube, R11
Spec's : Vceo(max)=- ?V, Vcbo(max)=- 20V, Hfe= 60, Ic=- 10mA, Icbo=?uA, P= 45mW, ft= 30MHz, Cobo= ?pF
Photo's : Picture1, Picture1

GET692 GEC Type : GET692, PNP Germanium Transistor (New)

Manufacturer : GEC Semiconductors 
Year : Early Sixties
Package, Case style : None, Green plastic over metal tube, R11
Spec's : Vceo(max)=- ?V, Vcbo(max)=- 20V, Hfe= 60, Ic=- 10mA, Icbo=?uA, P= 45mW, ft= 40MHz, Cobo= ?pF
Photo's : Picture1, Picture1

GET873 GEC Type : GET873, PNP Germanium Alloy Transistor

Manufacturer : GEC Semiconductors also produced by Mullard Ltd.
Year : Early Sixties
Package, Case style : None, GEC: Blue plastic over metal tube
Spec's : Vceo(max)=- ?V, Vcbo(max)=- 15V, Hfe= 50, Ic=- 10mA, Icbo=?uA, P= 75mW, ft= 6MHz, Cobo= ?pF
Photo's : Picture1, Picture1

GET875/CV7087 GEC Type : GET873, PNP Germanium Alloy Transistor

Manufacturer : GEC Semiconductors also produced by Mullard Ltd.
Year : Early Sixties
Package, Case style : None, GEC: Blue plastic over metal tube
Spec's : Vceo(max)=- ?V, Vcbo(max)=- 15V, Hfe= 90, Ic=- 150mA, Icbo=?uA, P= 75mW, ft= 20MHz, Cobo= ?pF
Photo's : Picture1, Picture1

GET882 GEC Type : GET882, PNP Germanium Alloy Transistor

Manufacturer : GEC Semiconductors also produced by Mullard Ltd.
Year : Early Sixties
Package, Case style : None, GEC: TO-5 Metal
Spec's : Vceo(max)=- ?V, Vcbo(max)=- 20V, Hfe=150, Ic=- 500mA, Icbo=5uA, P= 120mW, ft= 12MHz, Cobo= ?pF
Photo's : Picture1, Picture2

SX51SC GEC Type : SX651AC, Silicon Diode

Manufacturer : GEC Semiconductors 
Year : Perhaps mid fifties
Package, Case style : Carton box, TO-8var
Spec's : Reverse Voltage=-?V(max), Forward Current=?mA, Peak Forward Current=?mA
Photo's : Picture1, Picture2

SX633R GEC Type : SX633R, Silicon Diode

Manufacturer : GEC Semiconductors 
Year : Perhaps mid fifties
Package, Case style : Carton box, TO-8var
Spec's : Reverse Voltage=-?V(max), Forward Current=?mA, Peak Forward Current=?mA
Photo's : Picture1, Picture2

SX634 GEC Type : SX634, Silicon Diode

Manufacturer : GEC Semiconductors 
Year : Perhaps mid fifties
Package, Case style : Carton box, TO-8var
Spec's : Reverse Voltage=-?V(max), Forward Current=?mA, Peak Forward Current=?mA
Photo's : Picture1, Picture2

SX640 GEC Type : SX640, Silicon Diode

Manufacturer : GEC Semiconductors 
Year : Perhaps mid fifties
Package, Case style : Carton box, TO-8var
Spec's : Reverse Voltage=-?V(max), Forward Current=?mA, Peak Forward Current=?mA
Photo's : Picture1, Picture2

SX643 GEC Type : SX643, Silicon Diode

Manufacturer : GEC Semiconductors 
Year : Perhaps mid fifties
Package, Case style : Carton box, TO-8var
Spec's : Reverse Voltage=-?V(max), Forward Current=?mA, Peak Forward Current=?mA
Photo's : Picture1, Picture2,

SX645 GEC Type : SX645, Silicon Diode

Manufacturer : GEC Semiconductors 
Year : Perhaps mid fifties
Package, Case style : Carton box, TO-8var
Spec's : Reverse Voltage=-?V(max), Forward Current=?mA, Peak Forward Current=?mA
Photo's : Picture1, Picture2,

SX782 GEC Type : SX782, Silicon Diode

Manufacturer : GEC Semiconductors 
Year : Perhaps mid fifties
Package, Case style : Carton box, TO-8var
Spec's : Reverse Voltage=-?V(max), Forward Current=?mA, Peak Forward Current=?mA
Photo's : Picture1, Picture2,

SX781 GEC Type : SX781, Silicon Diode

Manufacturer : GEC Semiconductors 
Year : Perhaps mid fifties
Package, Case style : Carton box, TO-8var
Spec's : Reverse Voltage=-?V(max), Forward Current=?mA, Peak Forward Current=?mA
Photo's : Picture1, Picture2,

S1 GEC Type : S1, PNP Germanium Transistor

Manufacturer : GEC Semiconductors 
Year : Perhaps mid fifties
Package, Case style : Carton box, TO-8var
Spec's : Vceo=-?V, Vcbo=-?V, Hfe=?, Ic=-?mA, P=?mW
Photo's : Picture1, Picture2

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