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Transistor Ignition Distributer.....Tip

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Old Oct 25, 2007 | 01:00 PM
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From: St. Joseph Mo
Default Transistor Ignition Distributer.....Tip

If you are wondering if your pickup coil is good or not, just set your VOM to the lowest scale on AC volts, hook up the two leads to the pickup coil and spin the dist shaft with your fingers. If the needle jumps, your coil is good.

Just tinkering the other day.
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Old Oct 25, 2007 | 04:09 PM
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That would give the same indication of points opening and closing. Correct?
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Old Oct 25, 2007 | 07:49 PM
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Originally Posted by MikeM
That would give the same indication of points opening and closing. Correct?
Not really, points with a meter show continuity/no continuity whereas a TI dist and a VOM on the 0-10 v. a.c. will sent the needle upscale when you give the shaft a spin.

For Points:
Set your meter on low ohms in order to set your timing on a point type dizzy. With the crank damper mark aligned with the desired degree DTDC, rotate the dist back and forth and watch the meter. Lock it down when it opens (or closes, I suddenly can't remember).
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Old Oct 25, 2007 | 09:38 PM
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[QUOTE=67L36Driver;1562464880]Not really, points with a meter show continuity/no continuity whereas a TI dist and a VOM on the 0-10 v. a.c. will sent the needle upscale when you give the shaft a spin.




Well, to rephrase, when you twirl that TI distributor and it bumps your meter, it's indicating your distributor is making and breaking the circuit?
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Old Oct 25, 2007 | 11:17 PM
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From: St. Joseph Mo
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Originally Posted by MikeM
Well, to rephrase, when you twirl that TI distributor and it bumps your meter, it's indicating your distributor is making and breaking the circuit?
Nope, generating AC current. A very small current to be sure but enough for your VOM to detect and your TI amp & coil to make sparks.
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Old Oct 26, 2007 | 08:13 AM
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Originally Posted by 67L36Driver
Nope, generating AC current. A very small current to be sure but enough for your VOM to detect and your TI amp & coil to make sparks.

I'm trying to learn something here.

So it generates current and the TI amp senses it and causes the coil to discharge? If so, isn't that the same as points opening/closing?

If this isn't correct, what does make/break the coil circuit in the TI distributor?
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