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:
Copyright Ingenium / CC BY-NC-ND (Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
ATTRIBUTE THIS IMAGE
Ingenium,
1966.0643.001
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 IMAGEPURCHASE 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
- SHARP CUTOFF/RF AMPLIFIER
- DATE
- 1936
- ARTIFACT NUMBER
- 1966.0643.001
- MANUFACTURER
- MULLARD WIRELESS SERVICE CO. LTD.
- MODEL
- EF37A
- LOCATION
- England
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- GLASS/ SYNTHETIC/ METAL
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 9.8 cm
- Width
- 3.0 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
- MULLARD
- Country
- England
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- England
- State/Province
- Unknown
- Period
- PROBABLY 1940'S
- Canada
-
Unknown - Function
-
USED AS A RADIO FREQUENCY AMPLIFIER IN A RADIO RECEIVER - Technical
-
ONE OF THE 'RED E' SERIES INTRODUCED BY MULLARD IN THE UK. THE TUBES HAD A 6.3V HEATER & WERE PATED RED TO DISTINGUISH THEM FROM THE EARLIER 4V SERIES. THEY MARKED A TURNING POINT IN EUROPEAN TUBE DESIGN BECAUSE OF THE GREATLY REDUCED PHYSICAL SIZES OF ALL TYPES EXCEPT OUTPUT TUBES & RECTIFIERS (REF.2). - Area Notes
-
Unknown
Details
- Markings
- PRINTED ON ENVELOPE: 'Mullard/ EF37A/ BVA/ BRITISH MADE/ DA'/ PRINTED ON SHELL: 'EP1/ B5J'
- Missing
- N/A
- Finish
- GLASS PAINTED RED/ BLACK BASE
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
MULLARD WIRELESS SERVICE CO. LTD., Vacuum tube, after 1936, Artifact no. 1966.0643, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1966.0643.001/
FEEDBACK
Submit a question or comment about this artifact.
More Like This
1966.0643.001
