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Germanium point contact diodes type GEX34 and GEX54

Germanium point contact diodes type GEX34 and GEX54

circa 1950
Diode type SOD84

Diode type SOD84

1995
Diode type SOD59

Diode type SOD59

1995
Thyristor type SOT186A

Thyristor type SOT186A

1995
Silicon wafer

Silicon wafer

1995
Silicon wafer

Silicon wafer

1995
Silicon wafer

Silicon wafer

1995
Thyristor type SOT82

Thyristor type SOT82

1995
Thyristor type SOT223

Thyristor type SOT223

1995
crystal valve type GEX54

crystal valve type GEX54

circa 1950
Silicon wafer

Silicon wafer

1995
Medium power silicon junction diode

Medium power silicon junction diode

circa 1950
Thyristor type SOT78

Thyristor type SOT78

1995
diode

diode

circa 1950
sample display

sample display

circa 1960
diode

diode

circa 1950
Thyristor type SOT93

Thyristor type SOT93

1995
mounting

mounting

circa 1950
Silicon wafer

Silicon wafer

1995
Thyristor type SOT186

Thyristor type SOT186

1995
Silicon junction diode type SX640

Silicon junction diode type SX640

circa 1950
Germanium crystal GEX44

Germanium crystal GEX44

circa 1950
Thyristor type SOT263

Thyristor type SOT263

1995
Thyristor type SOT399

Thyristor type SOT399

1995
Thyristor type SOT119

Thyristor type SOT119

1995
Thyristor type SOT404

Thyristor type SOT404

1995
Thyristor type SOT54

Thyristor type SOT54

1995
circuit element

circuit element

circa 1950
MIC transmission lines

MIC transmission lines

circa 1950
diode

diode

circa 1950
Point contact germanium triode type EW51

Point contact germanium triode type EW51

circa 1950
Germanium Junction Diode type EW ??

Germanium Junction Diode type EW ??

circa 1950
Thyristor type SOT263

Thyristor type SOT263

1995
diode

diode

circa 1960
diode

diode

circa 1950
Two cathode ray tubes

Two cathode ray tubes

circa 1950
Medium power germanium junction diode type EW54

Medium power germanium junction diode type EW54

circa 1950
Two units - S-band switch. c.1950

switch

circa 1950
First example of branch arm coupler on glazed ceramic (SYNTOX) together with four later examples on saphire. 1965/66

branch arm coupler

1965/66
Three units, first X-band balanced mixer, second production example of X-band mixer, third S-band balanced mixer. c .1950

balanced mixers

circa 1950
Two unmarked packs of 5 pre-production Germanium Junction Diode semi-conductors, c.1950

Germanium Junction Diode

circa 1950
Semi-conductor rectifier, type CV7017, MoD Spec, in box.

Semi-Conductor Rectifier

X-band MIC super HET receiver with together with five component circuits 1968

X-band receiver

1968
4 examples of MIC circulator. c.1950

MIC circulator

circa 1950
Wave guide microwave mixer diode mount marked ASH 4. c.1950

mixer diode mount

circa 1950
three pieces - X-band MIC balanced mixers 1966

balanced mixers

1966
38 pieces - assortment of small circuits - various MIC examples. C.1950

circuits

circa 1950
Microwave delay line. non working example of 3.5 Ghz delay line. c.1950

delay line

circa 1950
Three demonstration glass indicators excitable by tesla coil. c.1950.

indicator

circa 1950
Eight resitors used in the evaluation of noise / temperature ratio of detector / mixer crystal diode of resistor. c.1950

resistors

circa 1950