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,
1969.0487.001
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
- AMPLIFIER/HIGH VACUUM
- DATE
- 1919
- ARTIFACT NUMBER
- 1969.0487.001
- MANUFACTURER
- Ediswan
- MODEL
- R4C
- LOCATION
- England
More Information
General Information
- Serial #
- 2136
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- TUNGSTEN FILAMENT/ NICKEL ANODE/ OTHER METAL/ GLASS ENVELOPE/ SYNTHETIC WIRE COVER
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 5.1 cm
- Width
- 8.3 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
- Edison
- Country
- England
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- Unknown
- State/Province
- Unknown
- Period
- Unknown
- Canada
-
Unknown - Function
-
USED AS AN AMPLIFIER IN RADIO RECEIVERS WHEN LOWER VOLTAGE WAS REQUIRED - Technical
-
REDESIGN OF TYPE R4A FOR USE IN AMPLIFIERS WHERE THE NOISE INTRODUCED BY THE R4A WAS OBJECTIONABLE/ OPERATED AT A LOWER VOLTAGE THAN THE R4B - Area Notes
-
Unknown
Details
- Markings
- ETCHED ON GLASS: 'ROYAL/ EDISWAN/ [ANCHOR]/ PATT.4411C/ VALVE R. 4C/ SERIAL NO. 2136'
- Missing
- From CA of 02/05/1998 by Pat Montero: No - Complete
- Finish
- UNCOLOURED GLASS ENVELOPE
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Ediswan, Vacuum tube, circa 1919, Artifact no. 1969.0487, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1969.0487.001/
FEEDBACK
Submit a question or comment about this artifact.
More Like This
![...](https://files.ingeniumcanada.org/items/coll/94/759/1969-0851-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/38/926/1980-0381-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/38/925/1980-0382-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/437/1998-0801-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/95/861/1969-0498-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/85/507/1966-0680-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/59/554/1989-0237-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/115/537/1978-0446-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/85/911/1966-0425-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/86/033/1966-0360-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/93/362/1969-1484-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/93/796/1969-1271-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/645/1998-0692-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/93/387/1969-1459-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/64/881/1992-1382-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/108/599/1975-0533-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/65/596/1992-0892-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/112/200/1976-0063-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/64/882/1992-1381-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/108/655/1975-0511-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/104/270/1972-0083-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/85/522/1966-0669-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/445/1998-0793-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/64/879/1992-1384-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/64/895/1992-1369-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/94/744/1969-0866-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/444/1998-0794-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/435/1998-0803-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/295/344/1983-0288-005-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/64/894/1992-1370-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/43/331/1982-0744-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/85/523/1966-0668-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/94/954/1969-0793-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/85/520/1966-0671-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/833/1998-0598-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/85/517/1966-0674-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/64/887/1992-1377-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/51/005/1986-0665-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/59/507/1989-0256-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/38/808/1980-0440-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/87/458/1967-1084-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/99/991/1971-0620-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/97/123/1970-1511-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/73/938/1996-0384-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/86/025/1966-0364-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/663/1998-0683-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/49/315/1985-0664-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/86/060/1966-0336-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/64/892/1992-1372-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/85/524/1966-0667-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/68/090/1993-0050-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/729/1998-0650-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/71/966/1995-0654-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/451/1998-0789-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/64/888/1992-1376-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/64/893/1992-1371-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/85/571/1966-0641-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/489/1998-0770-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/440/1998-0798-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/85/908/1966-0428-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/79/508/1999-0230-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/93/801/1969-1266-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/93/800/1969-1267-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/85/933/1966-0409-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/64/890/1992-1374-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/93/386/1969-1460-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/86/235/1966-0251-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/64/883/1992-1380-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/107/611/1974-0046-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/493/1998-0768-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/85/591/1966-0624-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/441/1998-0797-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/86/220/1966-0256-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/697/1998-0666-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/443/1998-0795-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/87/421/1967-1121-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/95/843/1969-0513-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/85/568/1966-0643-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/99/893/1971-0666-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/79/518/1999-0225-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/442/1998-0796-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/79/506/1999-0231-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/86/063/1966-0333-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/37/759/1993-0444-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/655/1998-0687-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/64/900/1992-1364-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/513/1998-0758-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/605/1998-0712-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/677/1998-0676-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/79/464/1999-0252-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/79/482/1999-0243-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/79/510/1999-0229-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/79/490/1999-0239-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/71/424/1995-0920-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/85/909/1966-0427-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/93/804/1969-1263-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/94/762/1969-0848-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/64/896/1992-1368-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/77/559/1998-0735-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/79/484/1999-0242-001-aa-cs.jpeg)