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for Double Diode Output Semi Miniature
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Double Diode Output Semi Miniature
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for Double Diode Output Semi Miniature
Double Diode Output Semi Miniature
Manufacturer
Marconi
Object Name
Valve
Classifications
Engineering
Acquisition
Presented in 1987 by Mr I Robertson.
Location
View by Appointment - Aberdeen Treasure Hub
Object number
ABDMS012876
Keywords
Manufactured
Receiving
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Boxed EM81 Miniature Tuning Indicator
Marconi
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Boxed Output Triode
Brimar
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Boxed Output Pentode
Mullard Limited
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for Semi-Miniature Output Beam Tetrode
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1950s
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Mullard Limited
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c. 1927 - 1930
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Marconi
pre-1950
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Octal/Triode/Heptode
Marconi
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for Q Triode Valve
Q Triode Valve
Marconi
c. 1914
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for 2 Q Type Triode Receivers
2 Q Type Triode Receivers
Marconi
1920s
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Marconi
1950s
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for Heptode, Boxed
Heptode, Boxed
Marconi
1930s
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for 2 Q Type Triode Receivers
2 Q Type Triode Receivers
Marconi
1920s
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for DH63 Diode-Triode
DH63 Diode-Triode
1950s
