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stearman456
Joined: 14 Aug 2010
Posts: 49
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 Posted: Tue Oct 11, 2016 7:03 pm Post subject: Can One Oil Temp Resistance Bulb Run Two Instruments? |
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If wired in parallel, can one oil temperature resistance bulb supply oil temperature information to two separate instruments? I can't fathom why it wouldn't if all it basically is is a resistor... The specifics are a Rochester bulb (MS28034-1) installed in the oil tank and wired in parallel to two separate 14v instruments in two open cockpits.
Thanks,
Dan
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millner(at)me.com
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| Posted: Wed Oct 12, 2016 12:03 pm Post subject: Can One Oil Temp Resistance Bulb Run Two Instruments? |
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On 10/12/2016 11:15 AM, Daniel Jones wrote:
| Quote: | I may set up a simple bench-top experiment just to see how much each
gauge under reads with the bulb in a pot of boiling water.
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If you power one of the gages from an isolated power supply, the
thermistor won't "know" the other gage is even there, except for heating
issues which shouldn't be an issue.
In olden days, that would be a small battery, intermittently charged.
Today, you can buy a charge pump on a chip that provides you voltage
isolated from the supply...
Paul
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