Smiths Industries UK, Voltage Stabilizer

[@mysteriomarvel933]

Very cool demo. If you had used an old analog multimeter set to DC volts you would see the needle sweep up and down which is a cool effect. I always thought they called this the voltage limiter when it goes to the guage cluster...the voltage stabilizer goes to the coil and alternator at least thats what those old mopar training videos and reference manuals called it.

[@snowyren5135]

Thanks very helpful

[@kiddrum99]

Thank you Cal, for that vid,, now i know what to do..:-)

[@nonsuchsame6902]

excellent information many thanks for giving

[@chrismarusic4277]

Why doesn't the 10 side stay under 10. ?

[@chrismarusic4277]

Why aren't the numbers consistent when on. It's like 2..4..12..7..2.... seems like the 10 side is jumping up to 12 and all over the place. ??

[@umbertoferrari4919]

My Lotus elan sprint year 1971 with Smith fuel gauge has the voltage stabilizer BR1307-00. What happend is that the gauge goeas up with the engine rev. is the stabilizer broken?

[@dadcolo]

The electrical gauges operate on 10 volts DC. Increasing generator or Alternator RPMs will generate more DC voltage. The stabilizer reduces that voltage down to about 10 VDC by opening the contact when it heats up, then closing when it cools down. If a stabilizer fails it usually sticks closed passing full voltage through to the gauges, 12-16 VDC. The gauges see higher voltage and read higher. You can check the stabilizer out put with a dc meter or a test light. The stabilizer operates like a turn signal flasher, on-off-on-off faster than the flasher. A light connected to the stabilizer out put will also flash on-off if the stabilizer is working, opening and closing, if it is stuck closed the light will be on continuous. A meter will see 12-16 VDC.

[@antoniosteinhauser1507]

Hi, do elektronic stabilizer the same? @@dadcolo

[@dadcolo]

@@antoniosteinhauser1507 I do not know all stabilizers, so can not say yes or no. I show what I found with mine, and passed that information along.

[@herrbommel2420]

Thanks again! Good to know.

[@PlasterMouldings]

So, is this working ok? the stabiliser on my tracvtor is outputting very erratic like yours and the fuel gauge doesnt seem to work. I thought it had to output a constant 10v?

[@dadcolo]

the on-off action (like a blinker) is trying to maintain the 10Volts, if it sticks closed it allows full voltage to flow to the gauges, more heat generated, bimetal strip in the gauge moves the needle too far giving inaccurate reading.

[@Rupertdepoepert]

Great video, especially because it’s extended with different scenarios.