Re: What are the normal voltages going to the dynamo D and F

[Barney Gaylord <barneymg@mgaguru.com>]

At 10:14 AM 1/3/2007 -0800, Simon Matthews wrote:
>....
>How quickly should the electro-mechanical regulator on an MGA switch?
>Should it switch fast enough to make a buzzing sound?
>....

Yes it vibrates.  The frequency may be about the same as ignition 
spark at idle speed, about 30 contact cycles per second (in the 
ballpark).  See here: http://chicagolandmgclub.com/techtips/general/585.html
Function of the regulator relay starts half way down the page just 
after the last picture.

Barney Gaylord
1958 MGA with an attitude
http://MGAguru.com