Voltage Regulator

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Wotherj
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Voltage Regulator

Post by Wotherj » Fri Aug 20, 2021 12:37 am

Hi everyone,
Dad recently dropped off a box of stuff that I'd long forgotten that I had. In it was a switch panel with what I think is a voltage regulator? It's got 3 wires, Bright, Dim and unknown.

Several questions.
1. Is it a volt regulator?
2. Is it worth salvaging?
3. Can they be repaired?
4. What years would it be relevant for?

Kind regards,
James.
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IMG_1270.JPG

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BE_ZERO_BE
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Re: Voltage Regulator

Post by BE_ZERO_BE » Fri Aug 20, 2021 3:30 am

 
 
This is an inductor that is used with MAG headlights on non-starter cars.
I would help keep the bulbs from burning out.
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TRDxB2
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Re: Voltage Regulator

Post by TRDxB2 » Fri Aug 20, 2021 10:15 am

It is worth saving and a member is looking for one. The contact wires can be repaired and then it can be tested. A MTFCA member came up with this
Note the insulated wires are thread underneath the wire core, soldering to the windings easily when pulled through. After soldering seal the joint with Flex Seal or Plasti Dip and rethread as shown. The threading is just to protect the wires from pulling loose
Non-Generator Headlight Inductor.pdf
(1.35 MiB) Downloaded 105 times
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Last edited by TRDxB2 on Fri Aug 20, 2021 1:09 pm, edited 2 times in total.
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Re: Voltage Regulator

Post by TXGOAT2 » Fri Aug 20, 2021 11:31 am

Given that the magneto produces alternating current, placing a diode in series with the headlight feed wire ought to cut the power delivered to the lights. I'd like to see a schematic of the OE device.

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BE_ZERO_BE
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Re: Voltage Regulator

Post by BE_ZERO_BE » Fri Aug 20, 2021 1:22 pm

This might help.
 
NON-STARTER DASH SWITCH - FIXED.jpg
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Re: Voltage Regulator

Post by TRDxB2 » Fri Aug 20, 2021 2:00 pm

Identifying the wires to the schematic
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wires routing.jpg
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BE_ZERO_BE
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Re: Voltage Regulator

Post by BE_ZERO_BE » Fri Aug 20, 2021 2:07 pm

Here are the links to the Schematics and Harness Diagrams on the MTFCI web site

Schematics
https://nebula.wsimg.com/3e10aca08d1115 ... oworigin=1


Harness Diagrams
https://nebula.wsimg.com/3a0733937917a1 ... oworigin=1
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CudaMan
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Re: Voltage Regulator

Post by CudaMan » Fri Aug 20, 2021 4:39 pm

Someone was just looking for one of those in the classifieds:

viewtopic.php?f=5&t=23001
Mark Strange
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Re: Voltage Regulator

Post by JohnH » Fri Aug 20, 2021 8:25 pm

TXGOAT2 wrote:
Fri Aug 20, 2021 11:31 am
Given that the magneto produces alternating current, placing a diode in series with the headlight feed wire ought to cut the power delivered to the lights. I'd like to see a schematic of the OE device.
A diode will indeed cut the power by half. But, an inductor reduces the power with increasing frequency (i.e. engine revs) which is why it is better suited to this application.


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Re: Voltage Regulator

Post by TXGOAT2 » Fri Aug 20, 2021 9:27 pm

So, it functions as a choke.

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BE_ZERO_BE
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Re: Voltage Regulator

Post by BE_ZERO_BE » Fri Aug 20, 2021 10:07 pm

More like a variable resistance (actually reactance).
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Re: Voltage Regulator

Post by Don D » Sat Aug 21, 2021 8:29 am

Does anyone know of a commerccial source for the purchase of a Voltage Regulator/Dimmer Resistance Inducer that is compatable for a 1915 T?

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ewdysar
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Re: Voltage Regulator

Post by ewdysar » Sat Aug 21, 2021 3:20 pm

The ‘15 Ts did not have a dimmer switch, and therefore no place for the dimming component discussed here. The magneto lights were just on or off, however, they are dimmer at idle and get brighter as the engine RPM increase.

Eric

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