Coaster.coaster wrote:Has anyone actually tried connecting to a Wassel DC set up with the rev counter feed connected to the DC output from the Wassel unit? maybe there is enough 'ripple' in the DC to trigger it, can't do any harm to try it in any case. If the battery smooths the DC out too much I wonder if inserting a diod into the possitive lead from thr Wassel and attaching the rev counter 'downstream' (isolating the batteryt) would work?sideout wrote:.....I wonder if the Wassel DC pioneers on here have got any clever ideas for a work around? Or is the future AC?....
Does the technical specification for the SIP speedo give any info on the AC signal requirements for the rev counter? If it'll take up to 30 odd volts then connecting to the unregulated side of the Wassel unit would work. If not then it might be possible to work out some kind of voltage reduction arrangement.
Any thoughts on either of the above J1MS or Firekpd??
It's been a while since you posted the above, but I've finally got around to testing it
Disconnected the battery and the Rev Counter part of the SIP speedo sprang into life
So now for a suggested solution using your diode idea (I'm only a simple mechy and haven't done electronics for a while either )
Sorry about the diagram, I decided it was a good idea to draw it using Excel......
Is there a grown up out there who could confirm that a diode placed before the battery would allow clean ripple-free DC on the battery side of the diode to feed the lights etc., and the Wassel side of the diode would still contain the vital ripple signal to trigger the Rev Counter?