Vacuum tube

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Ingenium, 1969.1477.001
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OBJECT TYPE: AF AMPLIFIER
DATE: 1918
ARTIFACT NUMBER: 1969.1477.001

MANUFACTURER: SUDDEUTSCHE TELEFON-APPARATE
MODEL: A
LOCATION: Nuremberg, Federal Republic of Germany

More Information

General Information

Serial #: 29614
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: SYNTHETIC/ GLASS/ METAL/ FABRIC/ WAX

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 11.1 cm
Width: 5.1 cm
Height: N/A
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Vacuum Tubes
Category: Telephone
Sub-Category: N/A

Manufacturer

AKA: FELTEN GUILLEAUME
Country: Federal Republic of Germany
State/Province: Unknown
City: Nuremberg

Context

Country: Europe
State/Province: Unknown
Period: WWI
Canada: Unknown
Function: DEVELOPED FOR USE AS A TELEPHONE REPEATER BUT BECAUSE OF MILITARY REQUIREMENTS WAS INCORPORATED INTO AMPLIFIERS FOR EAVESDROPPING ON ENEMY CONVERSATIONS IN THE FIELD
Technical: FIRST HARD TUBE TYPE DEVELOPED IN GERMANY BY SIEMENS & HALSKE/ THIS TUBE TYPE WAS THE FIRST STAGE IN THE 'A' TUBE DEVELOPMENT BY SIEMENS
Area Notes: Unknown

Details

Markings: ETCHED ON GLASS: 'KTD/ DRP/ 29[?]14'/ IMPRESSED IN WAX SEALS: 'KTD'/ ON CAP: 'G' 'A'/ LABEL PRINTED IN GERMAN READS IN PART: 'Suddeutsche Telefon-Apparate, Kabel-/ U. Drahtewerke A.-G., Nurnberg./ Verstarker Nr. 29614/ In Betrieb 3. 8. 18./ Aus Betrieb/ Gesamtbrennstuden/ Unterschrift'
Missing: From CA of 05/01/1998 by Pat Montero: No - Complete
Finish: UNCOLOURED GLASS/ BLACK CAPS ON EACH END/ WHITE STRING WITH BLACK WAX/ BLUE TAG WITHBLACK PRINTING
Decoration: N/A

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SUDDEUTSCHE TELEFON-APPARATE, Vacuum tube, 1918, Artifact no. 1969.1477, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1969.1477.001/

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