Re: Rectifier/Regulator circuit for an outboard motor?

From: Ken Weitzel (kweitzel_at_shaw.ca)
Date: 06/08/04 

Date: Tue, 08 Jun 2004 05:11:55 GMT

Sunny wrote:

<snip>

>
> Never seen such a thing - did they at least give you a meter so you
> could adjust the engine RPM to something approximating the correct
> voltage for the tool?

They were made by BEL (Beltronics). Still in business,
but now make radar detectors instead :)

Nope, no meter. The max output of an alternator is about
115 volts, so all you had to do in the interest of
cost effectiveness was get the engine running fast
enough to do the job. I discovered that 2 popsicle
sticks stuck under the idle adjustment screw would
start the table saw - and after starting it, one would
keep it going provided you didn't try to rip a 2x6
too aggresively. Funny, the girls always reminded
me that we'd need popsicle sticks on the way there :)

> I looked at taking the regulator off one of the old outboards I have
> lying around for parts, but they all use a field coil to control the
> alternator so the regulator doesn't have to deal with such wide voltage
> swings. No field coil on the new motor as far as I can tell.

Ahhh, the difference between generators and alternators :)

> I'm not getting any help with the circuit design here, maybe I should
> just order the regulator for my motor and buy a motorcycle battery -
> there's a spot I could put a small battery where it would be fairly
> safe. It'll cost more than I planned, but should work.

One of my neighbors owns AVO marine here in Winnipeg.
OMC and Honda outboards. We're pretty good friends
for the past 25 or so years, so if you like I'll
ask him for his suggestions. He may have something.

Tell me what kind/size of motor you have there.
Email if you prefer.

Take care.

Ken

Relevant Pages

  • Re: Getting better photos -how?
    ... particular camera, with a particular lens at a particular length; ... value so that (in the light meter) it doesn't center but is moved down ... adjust the fstop to about f8 at least. ... area that you want to be in the center of the exposure gamut. ...
    (rec.photo.digital.slr-systems)
  • Re: Which pH meter
    ... And if I use a ph meter mainly for fresh water I will go with the 4 ph calibration as the standard, but still like to look at the 10. ... They are separated by the probe characteristic which is different for each range and is aproximated with linear at different angle for each measurement range. ... adjusting zero point of the amplifier and the other, marked as "temperature" adjusts gain of the amplifier, for the user this will be your "pH 4/10" adjust. ...
    (rec.aquaria.marine.reefs)
  • Re: Getting better photos -how?
    ... I didn't want to manipulate the images any more than absolutely ... Or are you telling me to change the aperture value? ... As for the meter, I often hear people talk about "stopping down" or up ... adjust the fstop to about f8 at least. ...
    (rec.photo.digital.slr-systems)
  • Re: Calibration Of Electronic Equipment In The Home Workshop
    ... You make it sound like the OP was going to cal some critical lab ... tout calibrating your home theater by using a DVD/CD. ... METER CAN BE USED, ESPECIALLY WHEN THAT METER IS AVAILABLE WITH NIST ... adjust a scope's vertical response to 3% as it's specs state? ...
    (sci.electronics.repair)
  • Re: Question about Pan International SWR 200 meter
    ... now the meter indicated the reflected power. ... Then adjust antenna, and try again. ... What I did was connect a transistor over the SWR meter, ...
    (rec.radio.cb)