| RefNo | ACS/1/2/2/194 |
| AltRefNo | 206 |
| Level | Item |
| Title | Letter from [Alan Archibald Campbell] Swinton, to [Robin] H. Houstoun [Esquire] |
| Creator | Swinton; Alan Archibald Campbell (1863-1930); British electrical engineer |
| Date | 8 March 1927 |
| Description | Responding to a previous letter, stating he remembers the Moore tube quite well, and its exhibition at the Savoy Hotel. Recalls it was a glass tube containing air at a rarefied pressure, and the principal point about it was that there was some form of apparatus attached, which when the vacuum got too high, let in a little more air so to compensate for the absorption of the air in the walls of the tube by a well, known phenomena in all vacuum tubes, and one which he investigated and communicated the papers on the subject to the Royal Society, entitled "The Occlusion of the Residual Gas in the Glass Walls of the Vacuum tubes". Doubts these tubes, containing air, would give out much in the way of ultra-violet light, even if they were made of quartz instead of the glass Moore used. States that mercury vapour lamps give out ultra-violet light in profusion, particularly if they are made of quartz. Mentions vacuum-tubes containing neon, which produce a reddish yellow light. Doubts that the Librarian of the Institution of Electrical Engineers would know much about the matter and mentioned contacting Herbert Jackson. |
| Extent | 2p |
| Format | Typescript |
| PhysicalDescription | Carbon |
| AccessStatus | Open |
| RelatedMaterial | doi/pdf/10.1098/rspa.1907.0022 |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA8285 | Swinton; Alan Archibald Campbell (1863 - 1930); electrical engineer | 1863 - 1930 |
| NA1711 | Jackson; Sir; Herbert (1863 - 1936); chemist | 1863 - 1936 |