Re: Packard gas tank sending unit

Posted by HH56 On 2010/8/19 20:37:31

I believe this is the type of sender used in the 49. It is not a resistor but rather a bimetal element whose characteristic heat, bend and break cycle is affected by the float adding or subtracting force. This changes the on/off cycle duration and makes the gauge bimetal element respond accordingly on the scale. The photos are of a NOS Packard unit of that approximate era.

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