B. T. H. Stand 256.

B. T. H. Magnetos and electrical equipment made by the British Thomson-Houston Co., Ltd., of Rugby, are deservedly favoured amongst users of cars of all types, and it is a fact that many recent successes have been achieved on cars embodying electrical equipment from this factory. On the stand are shown magnetos of the two main tvi.cs, those with rotating armature and those of the yolar inductor type, which have rotary magnetic fields and stationary armatures. A feature of this type is that it can be run at a reduced speed and will give four sparks per revolution.