Pic 4. DC Generator assemblies. Note the use of 'electro-magnet' instead of 'stator'.
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Pic 5 . DC Motor assemblies. ------------------------------------------------
Pic 6. A loco under construction. The roof-mounted electric engine-cooling fan, drawing air though side mounted radiators, was a feature of later Class 37s. This appears to be a chassis only, with no bogies yet fitted. No cow-catcher, but still retaining the fly-traps.