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).
Circuit diagram for high tension direct current insulation testing using a trembler coil and rectifying valve.
| Identifier | WestWitteringFiles\Q\2April1927-June1927\ 70 | |
| Date | 29th April 1927 | |
| INTERMITTENT POSITIVE H.T. MAIN H.T. + C E R.R. TREMBLER COIL SWITCH BATTERY H.T. ~ + - B- F- D H.T. RECTIFYING UNIT DIAGRAM OF CONNECTIONS FOR H.T.D.C. TESTS OF INSULATION WITH TREMBLER COIL & H.T. RECTIFYING VALVE H.T.D.C. MAIN H.T. CONDENSER (.3 MICROFARAD) WITH SAFETY GAP DATUM CONDUCTOR CALIBRATED H.T. SPARK GAP M.A. MILLIAMMETER WITH SHUNTED CONDENSER. INSULATION UNDER TEST (DIAGRAMMATIC) EARTH E.F.C. 29/4/27 | ||