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Black Speedometer Sender Ohms Range
Posted: Tue Feb 27, 2024 5:20 pm
by Peted7202
Can anyone please confirm the Ohms range for the Black Speedo sender unit? I've asked at a supplier and they say 1.6 to 80. I'm sure I've read somewhere it's something like 17 to 220.
Re: Black Speedometer Sender Ohms Range
Posted: Tue Feb 27, 2024 5:56 pm
by geoberni
I remembered this coming up before, sort of...
viewtopic.php?t=73913
The early one is the range you've been quoted.
I seem to recall reading somewhere that the later style Smiths Sender is 240 Ohms empty and 20 Ohms full,
in the opposite sense to the early ones.
Holden for example offer a generic Smiths sender:
https://www.holden.co.uk/p/sender_for_s ... e_mounting
Resistance 237/273 at empty, 16/22 at full.