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).
Hand-drawn circuit diagram for the Bleriot-Phi System.
| Identifier | ExFiles\Box 31\1\ Scan114 | |
| Date | 25th February 1921 | |
| X 1402 X. 681 R.R. 2854. (10M T) S.H. 783. 10-12-30 G 3347 + - Res. Sh. Se. Se. Vib. Reg. Sc Cut out Sh. Normal Load Heavy Load CIRCUIT DIAGRAM OF BLERIOT-PHI SYSTEM E7C 25/2/21 | ||