R-1051/URR Navy Receiver Info

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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

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R-1051 front

R-1051D front

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R-1051 top

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R-1051D top

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R-1051 bottom

Variants

Model	Freq. Step	Chains	Front Panel	Circuits	Manual	Manuf / cost	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
R-1051A/URR	0.5 kc steps	metal chains	dual meter	discrete transistors + 2 tubes "six-pack"		Elmer (Montedel)	photo photo
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
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
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
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
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
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	photo
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

Links to info

R-1051 mailing list archives - here
R-1051 mailing list info - here
Photos and Info - Josh Rovero's R-1051 page
Manual - here
Manuals and Photos - Andy Moorer's R-1051 page
Info - http://www.eham.net/reviews/detail/2628
R-1051G's on board USS Missouri - here
Photos - Francesco Ledda's R-1051 page
Photos of low frequency converter - Jerry Proc's receiver page
Turret repair photos and module repair manual download - here
Contracts and serial numbers - here

MT-3114A/UR shock mount