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JT Sonar parts drawing.
We are seeking the missing components of our JT sonar.  Note we have the Master-Control Unit, CRV-23460 and a JP-3 Audio Amplifier but need everything else.  Most of the components of a BQR-3 (postwar version of JT) sonar are the same as the JT so we are seeking these as well.

Talkback Interphone Amplifier, CRV-50200, 10 5/8" high x 17 3/16" wide x 7 3/4" deep, 32 lbs
Talkback Control Unit, CRV-23461, 5 5/8" x 5" x 4 15/16", 5 lbs
Talkback Speaker Unit, CRV-49590, 8" x 8 1/4" x 5 3/4", 13 lbs (2)
Headset Assembly, CQF-49586, 8" x 8 1/4" x 11 1/4", 1 3/4" (2)

Converter Amplifier (in cabinet), CRV-50199, 17 7/16" x 19 9/16" x 13 5/16", 51 lbs (1)
JP-1 Audio Amplifier, CDI-50138, 10 1/2" x 21 1/8" x 15", 57 lbs (1)
or JP-2, JP-3, both of which have part number CDI-50179  as parts sets.

Hydrophone Assembly, CRV-51075, 7" x 64 1/2" x 10 1/2", 135 lbs (1)
consists of:
    Hydrophone, CQA-51074, 2 1/2" diam by 60" length, 26 lbs (1)
    Hydrophone Baffle, CRV-10366, 4 1/4" x 64 1/2" x 9 7/8", 46 lbs (1)
    Sound-Absorbing Coupler, CRV-10366, 10" diam x 3", 63 lbs (1)

Upper and lower pedestal assemblies.  These are the same for JT and JP sonar. The spacer pedestal under the superstructure appears to be Mare Island Style.
Training Shaft and Gear Box Assembly, Preferred is Mare Island Style, but Portsmouth Style may be adaptable.
Motor-Dynamo Amplifier, CG-21-ACN, 11 1/2" x 24" x 14", 190 lbs (1)
Power Train Mechanism, CRV-78241 (Preferred Mare Island Style) or CRV-78240 (Portsmouth Style)
Power Training Mechanism Motor Only, CG-211299, 8" x 15" x 9 1/4" (1)

Relay Assembly, CRV-29296, 10" x 8" x 4 1/2", 9 lbs (1)
Auxiliary Training Control, CRV-23462, 12 1/4" x 5" x 6 3/4", 17 1/2 lbs (1)
Bearing-Repeater Switch, CRV-24365, 11" x 7 1/4" x 4 3/4", 8 lbs (2)

Line filter CDI-53136, 6 1/4" x 5 1/4" x 14 1/2", 19 lbs. (1)
Noise Generator RQ-60139
Sound Projector CQA-51080

Photo of JT installation.

JT Sonar installed on USS Batfish

 

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Version 2.00, 11 Sep 2006