Avionics

Avionic Thermostatic Switch

(SWH) G4-1
United Controls avionic thermostatic switch. Duct therm switch. All chrome plated, copper construction. 1.75"D flange. Sundstrand. New-Surplus. Made in 1959.
NSN: 5930-327-8019.

Undervoltage Relay

(KO) 402SX
Wilmar Electronics undervoltage relay with adjustable drop-out point. One normally closed & one normally open contact, 2 amp. 120 vac, 400 Hz. 3-1/2" x 3" x 3"H. 3.9" x 3.5" base plate.

$650 each

$150 each

Left-Right Bendix Indicator Compass

(MTR) 1N4A Sparton left - right Bendix indicator compass. Requires 3-1/8" diameter hole. 2-5/8" behind panel depth. Made in the 1940s - 1950s. New, unused!!

Grimes Dome Light

(LMP) 10-0738-1
Grimes dome light. 28v. 2 bulbs included.

• Grimes P/N: 10-0738-1
• Boeing P/N: 204-40305-1
• NSN: 6220-01-019-0503

$109 each - $89 (3+)

$150 each

Landing Light Canopy

(LMP) B3847
Landing light canopy. Aluminum. 8" diameter.
NSN: 6220-00-225-1732.

Grimes Landing Light
12 vdc

(LMP) R17L-11A60
Grimes landing light. 12 vdc. New, from reconditioning 1954. Motorized extension and retraction. Automatic shut-off at end of travel, both directions. Lamp only lights when fully extended. Dimensions: 5" x 10" x 13". Grimes P/N: G3100.

$35 each

*** SOLD OUT ***

Grimes Landing Light
28 vdc

(LMP) 50-0076-1
Grimes landing light. 28 vdc. 8" diameter. Re-conditioned. NSN: 6220-00-397-6823.

400 Hz Transducer

(MTR) 3188
400 Hz transducer. Converts @ 0 - 115 vac, 380 - 420 Hz input to a 0 - 1 madc output signal to drive a standard panel meter. 10 - 32 stud posts in / out. 2-5/8" diameter x 3" high. Useful for any avionic or other 400 Hz power user to monitor line voltage.

$150 each

$15 each - $13 (3+)

Boeing Airplane Company Test Set

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(EQP) BC-714A Boeing Airplane Company test set for Radio Compass. BC-713A / BC-714A / I-100A • Includes Test Cables • Looks Brand New!! • 12-3/4" x 14-1/2" x 14"

Bendix Radio Antique Loop Azimuth Indicator Collector's Item

	Close up of drive gear and 28 vdc lamp input

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(MTR) MN-22A Bendix Radio compass faces "Loop Azimuth Indicators" have a fixed 0-360 degree scale on the outer ring, a movable center ring 0-360 scale that rotates with large knob on lower right (7 o'clock) of face. 5-1/8" across and 2" deep. Side aluminating 28v lights (10 and 5 o'clock) can be changed from top. Dial is driven at recessed gear as shown on detail. Originally syncho motors accomplished this. New in the box. Dated Feburary 16, 1944.