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02-11-2020, 05:59 AM | #21 | |
Junior Member
Join Date: Oct 2011
Location: Holt, Michigan
Posts: 20
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Re: Coil Tester needed
Quote:
Hello KR500, I would be thrilled to get an instruction sheet and schematic for my vintage Snap-On MT-640 coil & condenser tester. When were these built? Thank you, Kyle |
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02-11-2020, 11:39 AM | #22 | |
Senior Member
Join Date: May 2010
Location: So Cal
Posts: 8,748
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Re: Coil Tester needed
Quote:
The bulb in mine broke in shipping and I haven't been able to find another, there was no number on it. Bob |
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02-11-2020, 12:39 PM | #23 | |
Senior Member
Join Date: Jun 2015
Location: Red Deer, Alberta
Posts: 5,043
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Re: Coil Tester needed
Quote:
Maybe an NE-51? https://www.bulbtown.com/B1A_NE_51_N...Base_p/b1a.htm
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If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! Last edited by katy; 02-11-2020 at 12:42 PM. Reason: Addition |
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02-11-2020, 12:54 PM | #24 | |
Senior Member
Join Date: May 2010
Location: So Cal
Posts: 8,748
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Re: Coil Tester needed
Quote:
You can see the bulb in post #5 between the springs. Bob |
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02-11-2020, 01:40 PM | #25 |
Senior Member
Join Date: Jun 2015
Location: Red Deer, Alberta
Posts: 5,043
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Re: Coil Tester needed
__________________
If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! |
02-11-2020, 02:52 PM | #26 |
Senior Member
Join Date: May 2010
Location: Fresno, Ca.
Posts: 3,636
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Re: Coil Tester needed
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I'll start the hunt. When I bought it, without the bulb, I did use it too check my Model A coils and it did work. I think it's kind of a "buffer" for lack of a better word..for the bulb. djm |
02-11-2020, 03:06 PM | #27 |
Senior Member
Join Date: May 2010
Location: So Cal
Posts: 8,748
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Re: Coil Tester needed
I was thinking maybe it would glow when there was power at the terminals
from the coil being tested so you don't touch them. Bob |
02-11-2020, 05:48 PM | #28 |
Senior Member
Join Date: May 2010
Location: Fresno, Ca.
Posts: 3,636
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Re: Coil Tester needed
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02-11-2020, 09:01 PM | #29 | |
Senior Member
Join Date: May 2010
Location: So Cal
Posts: 8,748
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Re: Coil Tester needed
Quote:
12volts, I wonder how well it will work on 20,000 volts |
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02-14-2020, 04:06 PM | #30 |
Senior Member
Join Date: May 2010
Location: Fresno, Ca.
Posts: 3,636
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Re: Coil Tester needed
Bob...!
On the panel, it sez,..." use a 6 amp fuse ",...now I'm not sure.. |
02-15-2020, 12:31 PM | #31 |
Senior Member
Join Date: Dec 2016
Location: Sunrise Beach, Mo
Posts: 439
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Re: Coil Tester needed
My Dad from about 1925 on to 1965 made a living as a mechanic. He built a test set of the day, to check current, and leakage current (with a milliamp meter, along with lights for just plain continuity testing and as you can see from the pic's also distributor points with a heater motor with a single lobe cam on the shaft, that speed could be adjusted with a rheostat as well as spark gap of the coil. The unit also worked to test condensers. Clever! Today ya just go buy one or more to do these chores.
Last edited by DHZIEMAN; 02-15-2020 at 12:35 PM. Reason: forgot to add pics |
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