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Tiny Tim Battery Charging Set

locknut

Registered
Hi Guys,
I have picked up 2 wrecked Tiny Tim sets out of which I am hoping to make 1 good one ( or at least 1 that runs).Unfortunately both engine tags with all the details on are missing - the ammeter shows plus and minus 60 amps.Can anyone kindly let me know what voltage this set is? eg is this a 24 volt unit?
I have 3 other Tiny Tim sets models L123 and L124 which are 12volt and have ammeter plus and minus 30 amps.
Any help or advice would be much appreciated.
Thank you.
Kev.
 

J.B. Castagnos

Registered
Last Subscription Date
01/01/2006
Re: Tiny Tim battery charging set

Not familiar with these units but higher voltage is usually lower amperage. 24 would be half the amps of 12.
 
Re: Tiny Tim battery charging set

Take a look at the number of poles (field coils) in your 12 volt Tiny Tims. Then count the commutator bars. If both are the same as your 12 volt units, that's what they are.

I think the only way to get 24 volts would be to run them at an excessive speed, unless the armatures are wound for the higher voltage.

If either unit has a voltage regulator on it, it might have a voltage rating tag or possibly a manufacturer's model number you can track down.

I've actually rebuilt some old generators without a clue as to what they put out........until they were started :). Then a home made brass tag was installed..........
 

bartlett0815

Registered
Re: Tiny Tim battery charging set

Kev,
Can you post photos? I have one that lacks any meters. It puts out about 12V. If you look in the archives here, I've got photos of mine posted a couple years ago.
Regards,
Kevin in Wilmington NC
 

Tim B

Subscriber
Last Subscription Date
04/22/2020
Re: Tiny Tim battery charging set

Not positive but I heard you could go by the color? Blue was 6volt than you had a green and a red one. I believe they were 6,12 and 32? Can anyone confirm my guesses? My 6volt is blue I do know this.
 

bartlett0815

Registered
Re: Tiny Tim battery charging set

Tim,
Mine shows traces of green paint and when I checked it was putting out just under 12V.
Kevin in NC
 

locknut

Registered
Re: Tiny Tim battery charging set

Hi Guys ,
Thank you all for your replies.

Here is a picture of the most complete of the 2 (wrecked) sets I have showing the 60 amp meter,and its green color.I would add that it is seized at the moment so I have a bit of work to do on that first.It would be nice if it was a different voltage to the 12volt sets that I already have.
All the best,
Kev.
 

Mike in CA

Registered
Re: Tiny Tim battery charging set

@ bartlett0815,

I think you have a Delco "Little Joe" generator/ battery charger. I have one and it is almost identical to what you have.
 

Vanman

Subscriber
Last Subscription Date
07/10/2019
Re: Tiny Tim battery charging set

That 60 amp meter would make me tend to think that it is a 6 volt set. 60 amps at 12 volts would be more power than that little engine could make, I'd think! This, of course, assuming that the gauge is original....

Keith
 

Tim Venetis

Subscriber
Age
66
Last Subscription Date
07/09/2019
Re: Tiny Tim battery charging set

That 60 amp meter would make me tend to think that it is a 6 volt set. 60 amps at 12 volts would be more power than that little engine could make, I'd think! This, of course, assuming that the gauge is original....

Keith
Hi is the tiny tim a b circuit or a circuit configuration thanks.
 

Tim Venetis

Subscriber
Age
66
Last Subscription Date
07/09/2019
Re: Tiny Tim battery charging set

I did some probing and found out the wards airline charger has a a circuit configuration and the tiny tim charger was another name for the wards charger. From my understanding Western Auto also sold the same charger under another name Wizzard Light Plant.
Hi is the tiny tim a b circuit or a circuit configuration thanks.
 

brownfrog

Registered
Last Subscription Date
03/15/2018
Hello:

I am in the same pickle. no tags or ID info. One way to see what voltage it puts out besides the smoke test is to find the cutout relay and see what voltage across its coil will cause it to close starting with the lowest possibility, 6 volts in this case. It is probably lurking under the metal cover on the side. The cutout relay coil is connected across the output of the generator and pulls in when the generator voltages equals approacjes and exceeds the battery voltage. I did not know that they made a 24 volt plant. They also made a 32 volt device. I need to machine a part for the pesky pushbutton switch on top. Contact us if any questions. Cheers!
 

Tim Venetis

Subscriber
Age
66
Last Subscription Date
07/09/2019
Hello:

I am in the same pickle. no tags or ID info. One way to see what voltage it puts out besides the smoke test is to find the cutout relay and see what voltage across its coil will cause it to close starting with the lowest possibility, 6 volts in this case. It is probably lurking under the metal cover on the side. The cutout relay coil is connected across the output of the generator and pulls in when the generator voltages equals approacjes and exceeds the battery voltage. I did not know that they made a 24 volt plant. They also made a 32 volt device. I need to machine a part for the pesky pushbutton switch on top. Contact us if any questions. Cheers!
You could try starting it on 6 volts and disconnect the battery and see what it puts out fromm the battery terminal on the voltage regulator.
 
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