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Diode with screw base and lateral anode-lead

Ferranti DS6A BN diode

Ferranti DS6C BT diode

alloy junction diode

circa 1950

diode kit

circa 1950

veractor diodes type SVC11

circa 1950

vx3282 and vx3289 mixer diodes

circa 1950

Double diode, type RD12Ga

V.H.F. diode, type SD6/12/1.0

Mounted semiconductor diode by Philip Harris Ltd.

1960-1983

GEC EW99 diode

STC JK100C diode

Osram thermionic diode valve

1955

Marconi Osram thermionic diode valve

1935

Mullard Double Diode

1938

VX 6122 modulator overswing diode

Mullard silicon 4-layer diode BA148

Germanium diode type GP5C

1953

Experimental cold-cathode diode

VX 6102 modulator overswing diode

diode components

circa 1950

Q-band detector diode

circa 1950

mixer diode VX3352

circa 1950

components for crystal diode

circa 1950

Special diode type GRD7

Q-band detector diode

circa 1950

Marconi thermionic diode valve

1915

Mullard Double Diode

Large diode, formerly used in a teaching laboratory for high-voltage work, c.1950-c.1970

Large diode

circa 1950-circa 1970
Original Fleming diode (1904)

Original Fleming diode (1904)

1904
NU5 diode, Admiralty pattern 7416, 1943

NU5 diode

Commercial pattern Fleming Diode (Ediswan Make)

Commercial pattern Fleming Diode (Ediswan Make)

An antique diode.

Antique Diode

Guard-ring diode apparatus by Unilab, incorporating Ferranti GRD7 thermionic valve; for measuring the charge-to-mass ratio of the electron by the magnetron method, and other experiments. (Without solenoid or cylindrical magnet

Guard-ring diode apparatus by Unilab

1970-1979
367 CV2154 crystal diodes - silicon SIM5 and germanium GEM5 used in civil marine radar application. 1950 - 1980

diodes CV2154

1950-1980
Nineteen gallium arsenide (GaAs) varactor diodes.

varactor diode

circa 1960