TY - JOUR AB - Details of Electrical and Electronic Apparatus with Applications in the Maintenance and Operation of Aircraft, Missiles and Space Vehicles. A new mediumtolerance time delay has been introduced by M. L. Aviation Co. Ltd. for use over a temperature range of minus 65 to plus 70 deg. C. The initial range will cover input supplies of 18 V d.c. to 29 V d.c. with a current rating of 3 amps. The units incorporate a semiconductor circuit which operates an electromechanical switching relay, all housed within a hermeticallyscaled container. Power consumption, with the relay energized, is 7 watts and the unit automatically rescts when the supply voltage is broken. Maximum pulse frequency is dependent on the ambient conditions 1 5 sec. on and 10 m.scc. off at minus 65 deg. C, and 115 sec. on and 10 m.sec. ofT at plus 70 deg. C. for a 29 V d.c. unit. Alternative types are also offered for a.c. operation up to 50 V r.m.s. and delays of up to 10 sec. All delays can be supplied fully tested to climatic and vibration specifications D.T.D.1085B and Av.P.24 Engine Bay for aircraft use. TI - Aviation Electronics JF - Aircraft Engineering and Aerospace Technology DO - 10.1108/eb033817 DA - 1963-12-01 UR - https://www.deepdyve.com/lp/emerald-publishing/aviation-electronics-ZBxSTh8EpG SP - 376 EP - 376 VL - 35 IS - 12 DP - DeepDyve ER -