From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Product data sheet for a Mercury Vapour Rectifier from the Hewittic Electric Company Limited.
Identifier | ExFiles\Box 32\5\ Scan009 | |
Date | 22th November 1922 guessed | |
X1589. MERCURY VAPOUR RECTIFIER Single bulb type, D.C. output up to 100 or 150 amperes HEWITTIC ELECTRIC COMPANY LIMITED, 80, YORK ROAD, KING'S CROSS, LONDON, N.1. | ||