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Image Not Available for Heptode, Boxed
Heptode, Boxed
Image Not Available for Heptode, Boxed

Heptode, Boxed

Manufacturer
Date1930s
Object NameValve
ClassificationsScience And Technology
DimensionsOverall: Height: 12.5 cm, Diameter: 4 cm
AcquisitionPresented in 1987 by Mr I Robertson.
LocationView by Appointment - Aberdeen Treasure Hub
Object numberABDMS016213
Image Not Available for Octal/Triode/Heptode
Octal/Triode/Heptode
Marconi
Image Not Available for 13 Boxed Receiving Valves
13 Boxed Receiving Valves
Marconi
pre-1950
Image Not Available for Boxed EM81 Miniature Tuning Indicator
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Marconi
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Q Triode Valve
Marconi
c. 1914
Image Not Available for 2 Q Type Triode Receivers
2 Q Type Triode Receivers
Marconi
1920s
Image Not Available for Half-Wave Rectifier
Half-Wave Rectifier
Marconi
1950s
Image Not Available for 2 Q Type Triode Receivers
2 Q Type Triode Receivers
Marconi
1920s
Image Not Available for Boxed Heptode/Triode
Boxed Heptode/Triode
Mullard Limited
3 Valve Battery Receiver
3 Valve Battery Receiver
Marconi
c. 1927 - 1930
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Double Diode Output Semi Miniature
Marconi
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Octal Output Beam Tetrode
Marconi
Image Not Available for Cut-Away" Heptode
Cut-Away" Heptode
A C Cossor Ltd.
Image Not Available for 2 Red Coated Heptodes
2 Red Coated Heptodes
Mullard Limited
Image Not Available for Boxed Oak Switch
Boxed Oak Switch
1950s
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Boxed 41-MXP Triode
A C Cossor Ltd.
1930s
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Boxed 225-DU Rectifier/Voltage Doubler
A C Cossor Ltd.
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Image Not Available for Boxed Oak Switch
Boxed Oak Switch
1950s
Image Not Available for 10 Boxed Receiving Valves
10 Boxed Receiving Valves
Image Not Available for 36 Boxed Receiving Valves: American Pattern
36 Boxed Receiving Valves: American Pattern
Brimar
pre-1950
Image Not Available for Boxed 220-PT Receiving Valve
Boxed 220-PT Receiving Valve
A C Cossor Ltd.
Image Not Available for 5 Boxed Rectifiers: American Pattern
5 Boxed Rectifiers: American Pattern
Brimar
Image Not Available for 23 Boxed Receiving Valves
23 Boxed Receiving Valves
Image Not Available for 54 Boxed Receiving Valves
54 Boxed Receiving Valves
Image Not Available for 14 Boxed Receiving Valves
14 Boxed Receiving Valves
Mullard Limited