Part of my interest in navigation is the magnetic compass.
This comapss is a liquid filled version designed to be mounted on
the instrument panel of an aircraft. Aircraft use brings
with it a number of problems that are not present for compass use
on the ground so this compass has a number of features that are
Compass, Magnetic, Pilot's, Standby
28-Volt DC Lighting System
Serial No. 5152
Airpath model CB-2100-T4-Ait has
florescent markings, not sure what color filter, but think it's
The lamp can be a OL-300 or 327 or 328.
The compensation adjustments are made so that the error is split between North and South and between East and West.
Mating Connector to make cable for lamp power p/n: ______?______
Spare Parts diagram at the Airpath web site.
|Fig 7 UV light
||Fig 8 UV light
Altimeter, J.O. Phelps (Airpath Inst Co.), Jan 4 1949, 73/387;
73/178.00R; 116/271; 116/DIG.43 -
|1873684 Compass, Urfer Adolf, PIONEER INSTR CO Inc, Filed: 1929-05-11, Pub: 1932-08-23 -? Standby Compass|
2041072 Magnetic compass,
Kollsman Paul, 1936-05-19 - liquid damped
2078574 Compensating device for magnetic compasses,
Kollsman Paul, 1937-04-27 -
Back to Brooke's Products for Sale,
Astronomy, Sundials, Surveying, Time
& Frequency, Military
Information, PRC68, Alphabetic Index page
Page created June 29, 2012