R-1051/URR Navy Receiver Info

2-30 Mc Solid-state synthesized receiver (with 2 tubes in RF input)
First IF 20 to 30 MHz, second IF 2.85 MHz, third IF 500 kHz
Designed by General Dynamics & manufactured by several others

r1051-modules-01.JPG (803993 bytes)

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R-1051 front

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R-1051 rear

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R-1051
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R-1051
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R-1051
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R-1051
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R-1051
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R-1051
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R-1051
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R-1051B front

r1051b-91.jpg (57657 bytes)

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R-1051B top
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R-1051B bottom
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homebrew test harness
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R-1051D front

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R-1051D tag

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R-1051D top
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R-1051D bottom
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R-1051D front

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R-1051D

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R-1051D
 

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R-1051D

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R-1051D
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R-1051G front
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R-1051G rear
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R-1051G top
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R-1051G (replacement metal chains)
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R-1051G
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R-1051G
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R-1051G
Side rackmount bracket drawing
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R-1051H
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R-1051H
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R-1051H
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R-1051H

Variants - comments thanks to David Wise

Model

Freq. Step

Chains

Front Panel

Circuits

Manual

Manuf / cost

More
Photos

Other

R-1051/URR 0.5 kc steps metal chains dual meter discrete transistors + 
2 tubes
"six-pack"
1964 Navships 
0967-970-9010
1977 Navelex
0967-LP-970-9010
General Dynamics
$25,250
- -
1051: Two meters, 500cps steps controlled by 3-position rotary switch concentric with vernier.  Looks like a lever.
R-1051A/URR 0.1 kc steps metal chains dual meter discrete transistors + 
2 tubes
"six-pack"
- Elmer (Montedel) photo
photo
-
A/B/C: Two meters, 100cps steps controlled by 11-position rotary switch concentric with vernier.  Looks like a disk, with one square notch cut out for Vernier position.
 A has RF AGC OFF toggle switch near LSB PHONE knob, and BFO Freq scale
R-1051B/URR 0.1 kc steps metal chains dual meter discrete transistors + 
2 tubes
"six-pack"
NAVELEX 
0967-LP-427-4010
MSB
0967-LP-427-4030
Bendix (Allied Signal)
$25,250
- -
A/B/C: Two meters, 100cps steps controlled by 11-position rotary switch concentric with vernier.  Looks like a disk, with one square notch cut out for Vernier position.
 A has RF AGC OFF toggle switch near LSB PHONE knob, and BFO Freq scale
R-1051C/URR 0.1 kc steps metal chains dual meter
black face
discrete transistors + 
2 tubes
"six-pack"
supplement
TO 31R2-2URR-226-1
General Dynamics?
Radionics?
photo USAF
contract
A/B/C: Two meters, 100cps steps controlled by 11-position rotary switch concentric with vernier.  Looks like a disk, with one square notch cut out for Vernier position.
 C is like B but black front panel
R-1051D/URR 0.1 kc steps metal chains? single meter SSI and MSI logic + 
2 tubes
"six-pack"
NAVELEX 
0967-LP-878-3020
MSB
0967-LP-878-3050
General Dynamics
$16,830
- -
D: One meter with L/Off/U toggle switch (one range, not switchable), AGC OFF/SLOW/FAST rotary switch, no LINE LEVEL controls! otherwise front panel is similar to B.  New type lamps, replaceable from front, behind black "buttons".
R-1051E/URR 0.1 kc steps plastic chains single meter SSI and MSI logic +
2 tubes
"six-pack"
Navelex
0967-428-2010
MSB
0967-LP-428-2050
Bendix (Allied Signal)
$25,250
- -
E: Unknown
R-1051F/URR 0.1 kc steps plastic chains single meter SSI and MSI logic +
2 tubes
card cage
Navelex
0967-LP-617-7010
MSB
0967-LP-617-7020
Stewart-Warner
$21,210
- -
F: Unknown
R-1051G/URR 0.1 kc steps plastic chains single meter SSI and MSI logic +
2 tubes
card cage
NAVELEX
0913-LP-000-0800
Stewart-Warner
$21,210
- -
G: One meter, four sensitivity ranges on 9-position rotary switch beneath meter, small LINE LEVEL knobs above AGC OFF/SLOW/FAST switch, otherwise like D
R-1051H/URR 0.1 kc steps plastic chains single meter SSI and MSI logic +
2 tubes
card cage

EE125-AF-OMI-010
MSB
EE125-AF-MSB-010
/E110-R1051H
Stewart-Warner
$50,490
photo

photo

-
H: Significant ergonomic rework.  PHONE VOL knobs grouped with jacks, AUDIO LEVEL switch/meter/LINE LEVEL screwdriver-adjust pots grouped together, fuses below meter group, BFO knob grouped with mode selector, GAIN knob grouped with MGC/AGC switch and only used in MGC position.

Links to info

mt3114a-ur-01.JPG (12113 bytes)
MT-3114A/UR shock mount