US Navy AN/URR-64(V) HF Receiver - TMC DDR-10

AN/URR-64(V)2
urr64-ne-01.jpg (1868542 bytes)
Components (top to bottom)
TN-512/URR tuner
TD-915/URR demultiplexer
O-1511/URR freq synthesizer
 manual download --

TN-512/URR Tuner (TMC HFR-4)

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DSC03043.JPG (3974407 bytes) DSC03047.JPG (4384317 bytes) relays inside antenna input enclosure
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typical module
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tuning with variable inductors (top)
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tuning with variable inductors (bottom)
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TD-915/URR 4ISB demultiplexer (TMC MSA-4)

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DSC03035.JPG (4185051 bytes) DSC03039.JPG (4202239 bytes) switches with mounts for Ledex rotary solenoids in remote control version
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typical module
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typical module
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switch showing mount for Ledex rotary solenoid in remote control version
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O-1511/URR frequency synthesizer (TMC HFS-4)

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top - plug-in modules
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bottom - wiring
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co-ax wiring
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100kc selector - showing holes in shield for test points and adjustments
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100kc selector
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TMC Waverly plant test stamp
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mixer - showing holes in shield for test points and adjustments
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mixer
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modification add-on
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decade switches - RHS of PC board
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decade switches - LHS of PC Board
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1 mc selector
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