Exhaust Gas Temperature EGT Indicator, Type K-9, F-11 Tiger USSR Aircraft that may have used

Aircraft that may have used this have not yet been identified

When the aircraft crossed the Outer and Inner Marker Beacons the pilot also detected their distinctive signals

See the N62187 L-29 here

or Machmeter

Exhaust Gas Temperature EGT Indicator, Type K-9, F-11 Tiger USSR Aircraft that may have usedHere is an Exhaust Temperature Indicator, Type K 9, used to measure the exiting temperature of the exhaust gases of a jet engine, from 0 1,000 deg C. Made by Lewis Engineering part # 149E27 spec MIL I 5943. The closest example in appearance was used in the 1960's US Navy jet fighter Grumman F 11 Tiger, see photo of F 11 instrument panel. It is in fine condition given its age. The operating limits for the aircraft in which it was installed are marked