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).
Electrical specifications and wiring diagram for a Weston Box Instrument Model 163.
| Identifier | ExFiles\Box 165\3\ img028 | |
| Date | 21th August 1929 | |
| -5- | Description | Number and Connections | Volt ranges | Ampere ranges | Resistances (Ω) | Remarks | |---|---|---|---|---|---| | Weston Box Instrument Model 163. | 92 (and wiring diagram with labels: Inst.r, 1.5, 15, A, V, 15, 150, 600, +, -) | .0187 (at 15°C.) | .0126 | 1.565 (at 15°C.) | Instrument only. | | | | .0472 (at 18°C.) | .0230 | 2.05 (at 18°C.) | Between External shunt terminals. | | | | 1.5 | | 117.7 | Internal | | | | 15 | | 1177 | volt | | | | 150 | | 11770 | coil | | | | 600 | | 47080 | box. | | | | | 1.5 | .0323 | External | | | | | 15 | .00315 | shunts. | | ||