| RefNo | ACS/1/2/1/436 |
| AltRefNo | 482 |
| Level | Item |
| Title | Letter from [Alan Archibald Campbell] Swinton, to Messrs. H. V. Sullivan, Winchester House, Old Broad Street, E. C. |
| Creator | Swinton; Alan Archibald Campbell (1863-1930); British electrical engineer |
| Date | 9 February 1921 |
| Description | Anxious to consult with Mr Joseph with regard to a high frequency transformer amplifier he is proposing to construct, and the transformer he proposes to obtain from Messrs Sullivan. |
| Extent | 1p |
| Format | Typescript |
| PhysicalDescription | Carbon |
| AccessStatus | Open |