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Don 07-19-2019 08:06 PM

Sun machine power supply
 

I have a older sun machine that uses a 6 volt battery,,,,I don’t use the dwell or rpm gauges as I have a external dwell and rpm meter,, would like to rig up a PS to eliminate the battery,,anyone have a drawing that might work
If I knew the amp draw would help,,, Tks

fordwife 07-19-2019 08:44 PM

Re: Sun machine power supply
 

Google Paramount distributor co. They might be able to help you

petehoovie 07-19-2019 09:10 PM

Re: Sun machine power supply
 

Good read for you > http://bambam.gmu.edu/sun/index_files/Page2850.htm

and > http://bambam.gmu.edu/sun/index.htm

Pete 07-19-2019 10:51 PM

Re: Sun machine power supply
 

Quote:

Originally Posted by Don (Post 1779093)
I have a older sun machine that uses a 6 volt battery,,,,I don’t use the dwell or rpm gauges as I have a external dwell and rpm meter,, would like to rig up a PS to eliminate the battery,,anyone have a drawing that might work
If I knew the amp draw would help,,, Tks

If the battery powers the motor, it is going to take a bigger power supply than for just running the rest of the machine. For the motor the supply has to be able to handle the inrush current which can be several times the running current.

You can get a 0 to 30 volt, REGULATED, variable, 20 amp, DC power supply off eBay for about $100.

Battery chargers are not usually regulated so the voltage can vary widely.

marko39 07-20-2019 04:46 AM

Re: Sun machine power supply
 

Quote:

Originally Posted by Pete (Post 1779127)
If the battery powers the motor, it is going to take a bigger power supply than for just running the rest of the machine. For the motor the supply has to be able to handle the inrush current which can be several times the running current.

You can get a 0 to 30 volt, REGULATED, variable, 20 amp, DC power supply off eBay for about $100.

Battery chargers are not usually regulated so the voltage can vary widely.

The battery does not power the motor, it is 120volts. If it a Dist. Tester with vacuum tester the battery for one powers the vac. motor. I have not seen a way to eliminate the 6volt battery, only the 2 1.5 volt flashlight batterys for the dwell meter.

Bob C 07-20-2019 09:47 AM

Re: Sun machine power supply
 

Quote:

Originally Posted by Pete (Post 1779127)
If the battery powers the motor, it is going to take a bigger power supply than for just running the rest of the machine. For the motor the supply has to be able to handle the inrush current which can be several times the running current.

You can get a 0 to 30 volt, REGULATED, variable, 20 amp, DC power supply off eBay for about $100.

Battery chargers are not usually regulated so the voltage can vary widely.


Pete,can you post a link to the power supply, I can't find anything over
10 amps in the $100 dollar price range.


Bob

Pete 07-20-2019 11:19 AM

Re: Sun machine power supply
 

Quote:

Originally Posted by Bob C (Post 1779203)
Pete,can you post a link to the power supply, I can't find anything over
10 amps in the $100 dollar price range.


Bob

There were several used ones a couple months ago but the only one I see now is a new one for 145.
eBay item number:112992679653

Check the vacuum motor plate. 10A may be enough.

marko39 07-20-2019 11:33 AM

Re: Sun machine power supply
 

You can trace the wiring from the battery cables to see what else is powered by 6 volt DC.

Terranova 07-20-2019 03:06 PM

Re: Sun machine power supply
 

Can I buy the dwell/rpm gauge? The needle fell off my rpm gauge

alanwoodieman 07-21-2019 08:19 AM

Re: Sun machine power supply
 

I also have an older Sun machine and in asking questions about repair, I was told of some one near Charlotte, NC does this. I have not located him yet. Does anyone have that info?

Hoop 07-21-2019 08:51 AM

Re: Sun machine power supply
 

Alan, last contact I had was for Dave, [email protected]. Let us know if that email works.

He is in the Charlotte area and, I believe, worked directly for Sun as a tech.

Don 07-21-2019 08:43 PM

Re: Sun machine power supply
 

Need to keep machine all togeather might get it all working sometime,
Got a 6 volt battery now,,I’ll hook up and see what amp draw is ,might tell me which way to go,,


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