Voltmeter vs. ammmeter

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spyder
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Re: Voltmeter vs. ammmeter

Post by spyder » Mon Feb 20, 2012 2:10 pm

Tachometer was a lot easier! I had to silicone the gauge face to the trim ring because the rear of the instrument was no longer held in place by the mechanical movement. I had to add wires to the electronics board to position it outside of the enclosure because it would not fit inside the housing. The shaft on the Datsun tach was larger in diameter than the Autometer so I just pinched the Datsun needle opening to make it clamp on the Autometer shaft.

Image

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With a test signal.
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Last edited by spyder on Fri Feb 28, 2014 11:42 am, edited 1 time in total.

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Re: Voltmeter vs. ammmeter

Post by Garm » Mon Feb 20, 2012 2:33 pm

So this is an electronic but original tach? Wow man, my hat's off to you. Nicely done!
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Re: Voltmeter vs. ammmeter

Post by DaRoaster » Thu Jan 09, 2014 12:09 am

I would think the toughest thing would be locating an electronic tach with the same scale and a diameter that was close enough, and there it is. Good work!
Dennis
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Re: Voltmeter vs. ammmeter

Post by bobd » Thu Jan 09, 2014 6:33 am

Image

Mine is crude compared to what I see on this site.

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Re: Voltmeter vs. ammmeter

Post by 70-1600 » Wed Mar 12, 2014 1:56 pm

Spyder:
Great set up with the tach. Did you end up putting this (the tach) into your car? How's it working? What did you do to align it to the gauge of the mechanical tach, so it reads correctly?

My 7000 rpm tach hasn't spun since I've owned the car and I'm uncertain where the "break" is (dizzy, cable, tach). I also have a spare 8000 rpm tach, but I know those are for the 2000 cars, not my 1600 car. So I'm thinking about sourcing a 7000 RPM tach from Autometer and giving this a go on mine.

- John

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spl310
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Re: Voltmeter vs. ammmeter

Post by spl310 » Wed Mar 12, 2014 2:41 pm

I used to have a spare 7000 tach in the garage from a 68 1600. If you want, I will see if I can find it.
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Re: Voltmeter vs. ammmeter

Post by 70-1600 » Wed Mar 12, 2014 6:04 pm

spl310 -

Not knowing if my problem is my tach, the cable, or the dizzy getting a spare 7000 tach may not solve my specific issue. And I kinda like the idea of converting my existing 7000 tach to an electric one like spyder did. :-)

Sure…go ahead and check and let me know.

- John

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Re: Voltmeter vs. ammmeter

Post by spl310 » Wed Mar 12, 2014 7:20 pm

It is easy to check. Pull the tach cable and start the engine to see if it spins.
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spyder
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Re: Voltmeter vs. ammmeter

Post by spyder » Thu Mar 13, 2014 2:37 am

70-1600 wrote:Spyder:
Great set up with the tach. Did you end up putting this (the tach) into your car? How's it working? What did you do to align it to the gauge of the mechanical tach, so it reads correctly?
- John
It has been in the car since February last year and it works flawlessly. The picture up-thread at 4k rpm was derived from a signal generator which confirmed that it was measuring 66.6 turns per second of the engine. It was spot on from the factory. In my setup the tach input is coming from the ignition system output.

The Autometer instruction manual states: Operates on 4, 6, or 8 cylinder engines with points, electronic, and most 12V high performance racing ignitions.

http://www.autometer.com/productPDF/468H.pdf" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;

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Re: Voltmeter vs. ammmeter

Post by Vinnyz » Sat Apr 08, 2017 2:54 am

@ Spyder...awakening this thread.......did you tie the two 10 gage ammeter wires together and just take a pigtail 16 gauge to the autometer gauge for function with this mod?

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Re: Voltmeter vs. ammmeter

Post by spyder » Wed May 31, 2017 12:41 pm

Vinnyz wrote:@ Spyder...awakening this thread.......did you tie the two 10 gage ammeter wires together (yes) and just take a pigtail 16 gauge to the autometer gauge for function with this mod?

-Vinny

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Re: Voltmeter vs. ammmeter

Post by Lorna c » Wed Sep 06, 2017 2:40 pm

if you want some LEDs for these gages I have way too many to use . like 40 too many .. haha several colors to choose from too .. just saying , gages are out already . I have NO idea what you guys were talking about but if this thread isn't 2yrs old I can mail some to u .
:wink:
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late 68 1600 3 main motor .

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Re: Voltmeter vs. ammmeter

Post by spyder » Thu Sep 07, 2017 1:28 am

Lorna c wrote:if you want some LEDs for these gages I have way too many to use . like 40 too many .. haha several colors to choose from too .. just saying , gages are out already . I have NO idea what you guys were talking about but if this thread isn't 2yrs old I can mail some to u .
I put LED bulbs in around seven years ago. I like 'em!

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Lorna c
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Re: Voltmeter vs. ammmeter

Post by Lorna c » Thu Sep 07, 2017 2:59 am

are they burnt out yet ? hahaha I have way too many is all . just playing around ..
:wink:
"Is it me, or does everyone want to race ?"

late 68 1600 3 main motor .