| RefNo | ACS/1/2/1/515 |
| AltRefNo | 570 |
| Level | Item |
| Title | Letter from [Alan Archibald Campbell] Swinton, to The Editor, The "Electrician" |
| Creator | Swinton; Alan Archibald Campbell (1863-1930); British electrical engineer |
| Date | 7 March 1921 |
| Description | Discussing the functionality of a loud speaking optophone, stating he has recently applied to the optophone a thernionic amplifier of the note magnifying type, used in wireless telegraphy and telephony. Comments on Dr Fournier d'Albe's ingenious instrument, improved and manufactured by Messrs. Barr & Stroud, was fully described in the "Electrician", continuing with an in depth descrption of the amplifiers used. |
| Extent | 3p |
| 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 |