Ammunition Reserve Counter UH-1 This instrument has not yet

This instrument has not yet been specifically linked to any of these aircraft

made by Liquidometer PN EA-308-1

Researching the internet reveals that Type ASD X-band airborne search radar used this indicator as a B-scope (range vs bearing) in US Navy patrol aircraft to detect ships and surfaced submarines

It is new old stock

the graduations from 50 to 200 m

Ammunition Reserve Counter UH-1 This instrument has not yetThis is an electromechanical Ammunition Reserve Counter, used to display the rounds of ammunition remaining in reserve, up to 999 rounds, as the aircraft's guns have been fired. The wheel at the left of the digit display counter is used to set the total rounds loaded into the aircraft. The small protrusion right of the digit display counter was likely used to reset the counter to zero once pressed, but it is either non functional or requires the