Re: Blown cap on old dwell gauge - kal equip 2851
Yes it seems to be the same 'empty' 01.0 value after a few power cycles. Does that change the values of the resisters I should try?
It's actually designed for tuning a carburetor. The RPM is a useful data point to do so....
snakeintheeaglesshadow
Member
Last Activity: 12-04-2024, 07:32 PM
Joined: 12-20-2021
Location: Chicago
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Re: Blown cap on old dwell gauge - kal equip 2851
Ha! Or don't dwell at all and upgrade to HEI.
You mean touching the volt meter probes together and subtract the number from the resistor's value? I did that now and the 'empty' value is indeed 01.0. Meaning the final value of the burnt resistor is 4 ohms?...Leave a comment:
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Re: Blown cap on old dwell gauge - kal equip 2851
I finally found my multi meter and was able to test the resistance. The meter reads 05.0. However, the resistor practically crumbled while removing so I'm not sure how accurate that can be.
Does that narrow-down the correct resistor at all?Leave a comment:
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Re: Blown cap on old dwell gauge - kal equip 2851
I did try to use the tach function. My car doesn't have points ignition, but is old enough to use the tach. If I recall correctly, it worked for a split second then died, and now won't turn on at all. I'm pretty sure I attached the leads incorrectly. Probably attaching one to 12v that shouldn't have been.
I will test the resistor in the next couple of days and report back....Leave a comment:
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Re: Blown cap on old dwell gauge - kal equip 2851
Yes indeed. Three batteries total. I would kill for a set of instructions to know why haha.
It does have this function! I probably should have put all of the functions in the title. Attached is a pic of the front. It does dwell, tach, volts and ohms.
Ok that will be my next task. I think I found a few good youtube tutorials.
Precisely! Volts/ohms. The other switch is for tach/dwell....Leave a comment:
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Re: Blown cap on old dwell gauge - kal equip 2851
That goes to two AA batteries. Just FYI the other red wire in the pic goes to a 9v battery....Leave a comment:
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Re: Blown cap on old dwell gauge - kal equip 2851
Wow what great input! Very impressed by this community.
Can you recommend a specific resistor(s) to try?
I found it among my late father's hot rod stuff. No instructions of course, so I just plugged it up. Incorrectly, obviously.
Ah ha! I think I know where I went wrong attaching it. With no surge protection built-in, must be pretty easy to fry.
On the attached pic I attached the each colored lead to it's corrsponding connector on the...Leave a comment:
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Re: Blown cap on old dwell gauge - kal equip 2851
Thanks both for the quick replies. Sorry I couldn't respond until now.
Attached are pics of the trace side and (I hope) a clearer pic of the numbers of nearby components.
I believe it connects:
The very purple resistor (?) to the left of it
The black three post component (not sure what it's called)
Two white 'blocks': .1J100# and (horn?)33nJ250 (obviously not so sure on the symbols)...Leave a comment:
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Blown cap on old dwell gauge - kal equip 2851
Hi,
Can anyone help ID this cap, or any tips on how to figure it out? As you can see, it's clearly fried. Unfortunately the burn marks obscured the color bands. I couldn't get a good zoom on it with my phone, so I hope the pics are enough. I can try again if not.... -
Re: New Members - please post your introductions here
New member here from the midwest of the USA. I have two pretty cool old devises I'm hoping to restore. I'll make a thread ASAP. Please help me there if you can!Leave a comment:
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