09-04-2021, 08:38 AM
Thanks both! - so do I surmise that its merely the addition of an F1 terminal on the unit that stops it doing that, as even with present units, the resistance is "ready" as per John's diagram so to speak? And getting rid of the "formally-bodged" F1-F2 connection on the switch?
I only started looking again when looking at the complete mismatch between electronic regulators and the C35 dynamos, which are - as several old forum threads show - ALL incredibly low in field winding resistance (1.5/6) presumably for a very position reason - the third brush. The demands of the new-fangled units are higher resitance there - 2.5/3.5 ohms - and are encouraging expensive, perhaps unneccessary rewinds.
I only started looking again when looking at the complete mismatch between electronic regulators and the C35 dynamos, which are - as several old forum threads show - ALL incredibly low in field winding resistance (1.5/6) presumably for a very position reason - the third brush. The demands of the new-fangled units are higher resitance there - 2.5/3.5 ohms - and are encouraging expensive, perhaps unneccessary rewinds.