Some cracking, wear & tear on enamel paints; surface pitting; dataplate intact; several pieces of tape on unit; pencil writing - Failed "Smoke Test" on front & top; cable is in good condition; glass intact; functionality has not been tested. Sold As Is / For Display Only.
Trio Laboratories, Inc. Vacuum Tube Voltmeter, likely from a B-52, or other Cold War-era aircraft.
Signal Input cable is approximately 24" long. There are 115v AC leads on the rear of the unit, and what appears to be a screw mounting hole (mounting screw not included).
Dataplate lists the model as SD914. Dial on front of unit rotates from .03 / .1 / .3 / 1 / 3 / 10 / 30 / 100 / 300.
This unit may have been taken off a B-52 bomber, or other USAF aircraft in service circa early 1960's.
Sold FOR DISPLAY ONLY. No International Sales. No sales outside continental United States.