Vacuum tube

Use this image

Can I reuse this image without permission? Yes

Object images on the Ingenium Collection’s portal have the following Creative Commons license:

ATTRIBUTE THIS IMAGE

Ingenium, 1966.0631.001
Permalink:

Ingenium is releasing this image under the Creative Commons licensing framework, and encourages downloading and reuse for non-commercial purposes. Please acknowledge Ingenium and cite the artifact number.

DOWNLOAD IMAGE

PURCHASE THIS IMAGE

This image is free for non-commercial use.

For commercial use, please consult our Reproduction Fees and contact us to purchase the image.

OBJECT TYPE: DETECTOR
DATE: 1916–1919
ARTIFACT NUMBER: 1966.0631.001

MANUFACTURER: MARCONI'S W.T. CO. LTD.
MODEL: Q
LOCATION: England

More Information

General Information

Serial #: 7308
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: GLASS/ METAL

Dimensions

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

Length: 7.2 cm
Width: 2.6 cm
Height: N/A
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

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

Manufacturer

AKA: MARCONI
Country: England
State/Province: Unknown
City: Unknown

Context

Country: England
State/Province: Unknown
Period: 1920'S
Canada: Unknown
Function: USED AS A DETECTOR IN ALL TYPE 55 AMPLIFIERS FOLLOWING THE SIX STAGES OF HIGH-FREQUENCY AMPLIFICATION (REF.1).
Technical: TYPE SAMPLE OF ONE OF THE EARLIEST TUBE MODELS WHICH CARRIED THE MARCONI TRADEMARK. CAPT. H.J. ROUND WAS RESPONSIBLE FOR THE TUBE DESIGN. IT WAS A LOW CAPACITY TUBE WITH THE ELECTRODE CONNECTIONS BROUGHT OUT TO WIDELY SPACED CONTACT POINTS MOUNTED DIRECTLY ON THE BULB SURFACE (REF.2).
Area Notes: Unknown

Details

Markings: STAMPED ON GLASS: 'MARCONI'S W.T. CO. LTD./ MADE IN ENGLAND/ COVERED BY VARIOUS PATENTS/ 7308 Q'
Missing: From CA of 02/05/1998 by Pat Montero: No - Complete
Finish: UNCOLOURED GLASS/ ONE CONTACT POINT PAINTED PINK
Decoration: N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

MARCONI'S W.T. CO. LTD., Vacuum tube, between 1916–1919, Artifact no. 1966.0631, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1966.0631.001/

FEEDBACK

Submit a question or comment about this artifact.