AN/ARN-6 Radio Compass. It was airborne navigation equipment from WWII in the 50s, used in the first jets such Gloster, Meteors, F-86 Sabre, and many others. Below are photos of the primary components of the set.
R-101A/ARN-6 Radio Compass. Receiver Transmitter.
AS-313B/ARN-6 Antenna Loop
Control Box C-149/ARN-6.
WWII/50s RT-82/APX-6 Transpondor
RCAF APX-6A Transpondor
IFF control APX-6 F-86 Sabre, F9 Cougar.
AN/APX-25 - SIF control, F-86 Sabre, F9 Cougar.
ID-250 / ARN. Republic F-84F Thunderstreak and RF-84F Thunderflash , North American F-86F , F-86H Sabre and F-86D/K/L Sabre Dog , F-100C /D/F Super Sabre as well as in T-33 .
1950s. ARN-21 VHF NAV control.
RT-178/ARC-27 UHF Radio Transceiver. It was the most-used radio from the end of WWII until the 70s. It was used in the F-86 Sable, A4 Skyhawk, among others.
Control Box C-628A/ARC-27. Unlike many other vintage control boxes, this did not come from a junk yard. It was taken from a Lockheed T-33 USAF jet when a newer unit was installed.
AM-608 control amplifier for UHF ARC-27 Radio.
ARC-5 Radio Set.
Receiver and transmitter from the US Navy in WWII. Similar sets were used in the other military branches, with the same outward appearance but different internal components.
HS-33 Headset USAAF:
H-79/AIC Headset (Roanwell Corp)
Left: USN Jaeger LeCoultre clock with red knob used in many aircraft in WWII. Right: Waltham clock (USN Corsair Fighter among others)
BC 221-M Frequency Meter Unit:
This equipment allowed for simple, accurate, portable frequency callibration in labs and in the field. It was used for everything from aircraft radio tranmitters to radio receivers in the range of 125 to 20,000 kcs. It uses Hytron radio tubes which were made by Hytron Radio & Electronics of Salem, Mass (manufacturers of radio tubes since 1921). The headset is from the WWII era and has "TRIMM COMMERCIAL INC" over "Libertyville, IL, USA". It is quite possible that the Soviets copied this model in their USSR CH4-1. The CH4-1 looks very similar to the US SCR-211 but operationally it is more like the BC-221.
C-38/ARC-5 Radio Control (Grumman F6F Hellcat). WWII NOS:
WWII Ferranti Type. US Navy Mk.18 Gun Sight. This Giro Type Sight was copied by the US navy for planes during the Korean War.
Here you can see the Ferranti Sight. The photo is from a 1951 Argentine movie. The plane is a Gloster Meteor.