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).
Potential fire risks and sparking issues related to car radio set installations.
| Identifier | ExFiles\Box 63\3\ scan0283 | |
| Date | 18th March 1935 | |
| S/W. Hs{Lord Ernest Hives - Chair}/Wst. 6183. H.3/WH. 18.3.35. Re:- Car Radio Sets. I have been instructed to see your Hs{Lord Ernest Hives - Chair}/Wst.9. In connection with cars catching fire, it seems to us as if the instruction recently circulated to connect condenser filter units to our main fuse and to avoid connecting them to the dynamo field fuse circuit might easily result in trouble, unless a smaller fuse is placed in the circuit somewhere to blow when a defect occurs in the wireless. Further we note in some cases that suppressors on the actual plugs are of the push on clip type and thus suffer from the same tendency to spark if loose or falling off as our own leads originally did. H.{Arthur M. Hanbury - Head Complaints} | ||