Boeing B-17 Flying Fortress Radio Destruct Switch Box NOS WWII Aviation INS-0118

New old stock. To destroy special iff radio equipment in the event that aircraft may be captured. As equipped on b-17s and b-24s. Museum quality. Measures 5" x 2-3/4' x 2" made in the usa. Per the army signal corps museum:"the scr-695 iff set, mark iii (bc-706, 765, 767, 958, 965, 966); iband, 157-187 mhz and g-band, 200 mhz is an airborne iff radio equip when used in conjunction w/certain remote interrogating equipment such as ground or airborne interrogator-responder equipment or radar equipment. This set permits aircraft in which it is installed to identify itself as friendly.from a wwii navy radar operator's manual:"there is always the possibility of aircraft being forced down or shot down with the abk itself still in an undamaged or repairable condition. To guard against this contingency, a detonator is installed in every abk unit. This detonator or "destructor" is an explosive charge inserted into the side of the cabinet. When exploded, it can destroy the insides of the unit so completely that it