I would ask Mike about the DVR2.
Right then,
I contacted ManorMike, (Mike Hutchings) at Dynamo Regulators; he agreed to have a look at my DVR2. I sent the unit off and refitted my el cheapo Wassell gizmo which since my dynamo was fettled by Dave Lindsley actually does work, (see more about this later).
Mike confirmed that something had gone wrong with the DVR2 and it was earthing the dynamo output. I would not have been surprised to be told that I had done something to damage the unit
, although I am not really that dumb with electrickery, (I was a telephone maintenance engineer for many years).
Mike sent me a new DVR2 last week and this morning I've had the opportunity to go to the garage and fiddle, (with the bike!).
A while ago you may remember we discussed using an LED to illuminate the ammeter and display charge state, (
http://www.a7a10.net/forum/index.php?topic=6284.0).
I fitted one of these things back then:
http://goo.gl/s2BCN3. I got a 6v positive earth version and fitted it, (with blue-tack) to the clear plastic outside of my ammeter casing inside the headlamp cowl. As my bike has no way of turning the device on and off and it is only needed in poor light when you cannot see the ammeter I wired it between the speedo bulb feed and earth.
After changing over the regulator units today I started the engine and wow; what a difference! With the Wassell unit in circuit with headlight on, engine revs raised, the ammeter was showing a move to the centre position so the regulator was attempting to balance the dynamo output vs battery load. The best I got from the LED device was a neutral amber light.
Now I have the DVR2 fitted, as the revs are increased the ammeter moves over from discharge to showing a healthy charging current; the LED device meanwhile changes colour from red to amber and then shows a good clear green! Obviously when the battery has been fully charged I'm expecting to see a neutral display from both devices.
I can recommend the LED charge indicator; it works
. However, I highly recommend the DVR2 and the super service provided by DynamoRegulators. Thank you very much Mike!