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Old 06-19-2010, 12:10 PM
TMCNo1 TMCNo1 is offline
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Join Date: Jul 2005
Boat: Gone
Location: Gone
Posts: 22,134
Originally Posted by wheelerd View Post
Just wondering...
Do late-model boats with electro-mechanical gauges BUT still using pitot pickups require a ballast tube (aka. balance tube or equalizer tube) in the speedo air line?

This would be boats from the mid 90s until about 07 when paddle wheel pickups were introduced.

They should not, because the paddle wheel sends a electromagnetic signal to the electronic speedometer.
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