| RefNo | ACS/1/2/1/881 |
| AltRefNo | 950 |
| Level | Item |
| Title | Letter from [Alan Archibald Campbell] Swinton, to Albert Bennett [Esquire], Middlewood View, High Lane, Nr. Stockport |
| Creator | Swinton; Alan Archibald Campbell (1863-1930); British electrical engineer |
| Date | 7 July 1921 |
| Description | Encloses a diagram of the d-valve amplifier showing dimensions and general arrangement of the parts [enclosure not present]. Discusses at length the size of the condenser plates, the filament resistance, and the capacity reactance condenser. |
| Extent | 2p |
| Format | Typescript |
| PhysicalDescription | Carbon |
| AccessStatus | Open |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA8285 | Swinton; Alan Archibald Campbell (1863 - 1930); electrical engineer | 1863 - 1930 |