RADIO RECEIVER EQUIPMENT MODEL AN/APR-4
 Year end 1943 USA

Radio Receiving Equipment AN/APR4 is a search receiver designed to measure the frequency of radar or radio signal within its frequency range. It is a superheterodyne type of receiver, complete in itself, but may be used with associated equipment.

 

  

 
  RADIO RECEIVER EQUIPMENT MODEL AN/APR-4  

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Frequency coverage: 40 Mc - 3.400 Mc with four Tuning Unit
Tuning Unit:
TN-16/APR-4 38 -95 Mc
TN-17/APR-4 74 - 320 Mc
TN-18/APR-4 300 -1000 Mc
TN-19/APR-4 975 -2.200 Mc
TN-54/APR-4 2.150-4.000 Mc
Type of signal: AM, CW
Tubes APR-4: 2 x 5Y3 , 1 x 6AG7 , 1 x 6AG7 , 6 x 6AC7
Tubes TU:
TN-16/APR-4 2 x 9002
TN-17/APR-4 2 x 955
TN-18/APR-4 1 x 955
TN-19/APR-4 1 x 703-A western Electric, 1 x 6E5
TN-54/APR-4
Power Supply: 80 or 115 Vac
Dimensions: 8 x 10 716 x 24 7/8 inch Weight: 95 poundss