| RefNo | ACS/1/1/17 |
| AltRefNo | 5347 |
| Level | Item |
| Title | Letter from [William George] Armstrong, Cragside, Rothbury, to [Alan Archibald Campbell] Swinton, 66 Victoria [Street], London, S.W |
| Creator | Armstrong; William George; Baron Armstrong (1810-1900); British armaments manufacturer and industrialist |
| Date | 13 April 1891 |
| Description | Description Enquires if there is no instrument in use by which a continuous current (and as a secondary battery would supply) can be converted into an alternating current. Discusses the effects Mr [William] Spottiswoode obtained from a Ruhmkorff by using an alterating Dynamo for the primary current. |
| Extent | 2p |
| Format | Manuscript |
| PhysicalDescription | Ink on paper |
| AccessStatus | Open |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA3460 | Armstrong; William George (1810 - 1900); Baron Armstrong of Cragside; armaments manufacturer and industrialist | 1810 - 1900 |
| NA8285 | Swinton; Alan Archibald Campbell (1863 - 1930); electrical engineer | 1863 - 1930 |
| NA7690 | Spottiswoode; William (1825 - 1883); mathematician and physicist | 1825 - 1883 |