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<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=671035015-23012004><SPAN
class=671035015-23012004>I've modified a Kolisman altimeter to operate on
compressed air. I've reversed the operation by puncturing the internal
bellows, relieving the vacuum, and then resealing the bellows with solder.
Now the altitude value indicated by the needles decrease with increasing
pressure.</SPAN></SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=671035015-23012004><SPAN
class=671035015-23012004></SPAN></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=671035015-23012004><SPAN
class=671035015-23012004>I've hooked the altimeter to an I/P(electronic pressure
regulator). By varying the voltage to the I/P I can control the altitude
reading. Here's a short avi movie:</SPAN></SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=671035015-23012004><SPAN
class=671035015-23012004></SPAN></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=671035015-23012004><SPAN
class=671035015-23012004><A
href="http://mysite.verizon.net/vze323mw/sitebuildercontent/sitebuilderfiles/Video%206.avi">http://mysite.verizon.net/vze323mw/sitebuildercontent/sitebuilderfiles/Video%206.avi</A></SPAN></SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=671035015-23012004><SPAN
class=671035015-23012004></SPAN></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=671035015-23012004><SPAN
class=671035015-23012004>Craig R.</SPAN></SPAN></FONT></DIV></BODY></HTML>