17-04-2019, 01:30 PM
(06-04-2019, 10:50 PM)Winston Teague Wrote: For general information, the new manufacture RB106 regulators are of such poor/erratic quality that 3hours of running before failure is quite normal, and that is installed on a vehicle for which it is intended! ie c40 dynamo. w
Leaving aside any general build quality issues with the reproduction items, a period specification document I have seen stated that the genuine Lucas RB106 regulators had Palladium contacts. The ones in the repros are probably made of Chinesium as Palladium was and is a precious metal.
Interesting reading about 12v conversions on the A7 dynamo; I have come across so many of these converted dynamos that have died having thrown the solder off the commutator wiring. I've always thought that the issue is basically one of maximum power output. i.e. 6v dynamo max 10A output =60W; but a 12v converted dynamo would only make 5A to produce the same power.; i.e. at that output it's still a 60W dynamo. Running it at 8 or 10 amps @ 12v means it's potentially a 120W dynamo -does look like trying to get a quart of power from a pint pot of dynamo to me -running the dynamo without the steel strap over the brushes might help with heat dissipation though.