If i hook up an accessary does it matter which side of the ammeter it goes on?
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technically, no.
But if you want the ammeter to show the load, hook on the downstream side
depends what you want -
Here's a wiring diagram. Connect to the yellow with black stripe so the drain will show on the ammeter when the engine is off.You do not have permission to view this gallery.
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I just wired my dash, and tested several connections to evaluate correctness (didn't even try to start the engine). I have 6 volts at multiple different points as expected including the wire to the distributor, but when I turn the key on, the needle on the ammeter does not move even a hair. No electrical draw items (lights, horn, etc) are connected, so this may be normal, but over the years I am...06-21-2022, 08:24 AM -
I inherited a gob of ammeters when I bought my pickup. This one stands out from all the others mostly aftermarket junk. Does this look original?You do not have permission to view this gallery.
This gallery has 4 photos.12-14-2020, 12:00 AM -
after all the vibrations, death wobble , fouled plugs , engine mount issues, I can finally look at dash without a pile of sweat and tears that my ammeter is showing reverse of what exactly what's happening . 12V alternator showing discharge all the time when engine running, was thinking if I reversed connections ? or this won't work anyway with Alternator ?05-23-2019, 05:54 AM -
The ammeter worked, but on the last drive it looks like it is going out.
30 coupe, 6v alternator with 12v ps. After starting the meter would show 10a charge and drop to 2 or 3 after a bit. Turning lights on would cause higher reading. With engine off, it would show negative with lights on.
Now it shows near 10 running and 0 when off, even with lights on.
Many...09-23-2018, 01:23 PM -
my ammeter is reading discharge when running,when not running and lights on it reads full charge.genorater rebuilt by pro new cut out same time,only 500 miles.was working fine.genorater is putting out.help!...08-08-2018, 07:56 AM -
I've noticed this spring that the ammeter needle in the '30 Roadster wants to bounce, on the Positive side. It swings between about 2 amps and 6 amps and doesn't want to settle down, doesn't
want to read steady. At idle or full throttle it acts the same. Ammeter nuts are tight there is no shorting out or heated up ammeter.
The ammeter is an original Doc Kalinka rebuild, and I'm...05-10-2021, 05:52 PM -
Can anyone out there know what changes are necessary to the attached wiring diagram if wiring the A for 12 VDC Neg ground?
Is there a 12 VDC wiring drawing available?
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This gallery has 1 photos.08-19-2019, 05:55 PM -
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For a number of years I've been running a 6V positive ground Alternator with an older repro 20 amp ammeter. I've never had any problems. I have the instrument panel off for re-plating. For safety sake, should I switch to a 30 amp ammeter? If so, now's the time to do it.05-24-2020, 08:56 AM -
Does anyone know of a source for the hard fiber insulating material in the back of the ammeter?
This is the part that burns and leads to a short when the the little carriage bolts get loose and heat up.
I need to restore one and haven't found any material to replace the original piece.
...10-27-2021, 07:01 PM
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