Philco 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.


2N128 Type : 2N128, PNP Germanium Transistor

Manufacturer : Philco
Year : 260, 1960, week 2
Package, Case style : Blister, TO-24
Spec's : Vcbo=-10V, Vceo=-4.5V, Hfe=19, Ic=-5mA, Icbo=3uA, P=25mW, ft=28MHz, Cobo=5pF
Photo's : Picture1, Picture2, Picture3 (Donated by Rose Freeman US)

2N226 Type : 2N226, PNP Germanium Transistor

Manufacturer : Philco
Year : 1962, week 47
Package, Case style : Blister, TO-25
Spec's : Vcbo=-25V, Vceo=-6V, Hfe=20-120, Ic=-150mA, Icbo=25uA, P=100mW, ft=400kHz, Cobo=140pF
Photo's : Picture1, Picture2, Picture3

2N345 Type : 2N345, PNP Germanium Low Power Transistor

Manufacturer : Philco
Year : (260, 5930), Week 2 1960 or Week 30 1959?
Package, Case style : ?, TO-24
Spec's : Vcbo=-5V, Vceo=-5V, Hfe=14, Ic=-5mA, Icbo=3uA, P=20mW, ft=?kHz, Cobo=6pF
Photo's : Picture1, Picture2. Picture3, Picture4, Picture5, (Donated by David Willenborg from the US)

2N393 Type : 2N393, PNP Germanium Transistor

Manufacturer : Philco
Year : ?
Package, Case style : ?, TO-24
Spec's : Vcbo=-6V, Vceo=-6V, Hfe=20-40, Ic=-50mA, P=25mW, Cobo=6pF
Photo's : Picture1, Picture2, Picture3

2N499 Type : 2N499, PNP Germanium Low Power Transistor

Manufacturer : Philco
Year : 260, February 1960
Package, Case style : none, TO-1
Spec's : Vcbo=-30V, Vceo=-30V, Hfe=6, Ic=-50mA, Icbo=5uA, P=25mW, ft=100MHz, Cobo=2.53pF, PG=7.5dB
Photo's : Picture1, (Donated by Gerard Duperray France)

2N501A Type : 2N501A, PNP Germanium Transistor

Manufacturer : Philco
Year : ?
Package, Case style : Blister, TO-24
Spec's : Vcbo=-15V, Hfe=20, Ic=-50mA, P=60mW, ft=175MHz
Photo's : Picture1, Picture2

2N502 Type : 2N502, PNP Germanium Low Power Transistor

Manufacturer : Philco
Year : (260, 5930), Week 2 1960 or Week 30 1959?
Package, Case style : Blister, TO-9
Spec's : Vcbo=-20V, Hfe=5.5, Ic=-100uA, P=25mW, ft=220MHz, Cobo=2pF
Photo's : Picture1, Picture2, Picture3, Picture4, (Donated by David Willenborg from the US)

T1362 Type : T1362, PNP Germanium Transistor

Manufacturer : Philco
Year : ?
Package, Case style : None, unknown
Spec's : Unknown, (Who can help me with the technical data?)
Photo's : Picture1, Picture2

T2546 Type : T2546 Match Pair, PNP Germanium Transistor

Manufacturer : Philco
Year : 1962 week26
Package, Case style : Original envelope, ?
Spec's : Vceo=?V, Vcbo=?V, Hfe=?, Ic=?mA, P=?mW
Photo's : Picture1, Picture2, Picture3

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