| RefNo | ACS/1/1/9 | 
| AltRefNo | 4516 | 
| Level | Item | 
| Title | Letter from [William George] Armstrong, Athenaeum Club, Pall Mall, 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 | 16 December 1890 | 
| Description | Writing in relation to an experiemnt, admits it troubles him that the best plan to obtain quantitative effect will be to make the wheel contract breaker act as a separate break for each coil. Suggests that they should multiply the discharges or number of sparks without affecting the volume of each & the aggregate quantity would necessarily be proportionate to the number of coils. | 
| 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 |