On Thu, 06 Dec 2012 13:13:48 -0500, Tim Mara wrote:

this is the old Cambridge MK IV speed director, not a variometer but an
accessory to the old Cambridge variometers, *audio, STF and averager*
manual for this is on my website page
http://www.wingsandwheels.com/useful.htm tim

Yep, and the Mk 4 vario itself is the bottom dial on that panel.


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martin@ | Martin Gregorie
gregorie. | Essex, UK
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