US Navy HF & MF Receivers - 1950's & 1960's

My main interest is in HF communications in the 1950's and early 1960's but this is a work in progress
Please send me e-mail with additions, corrections, links, photos, etc. - thanks, Nick K4NYW
Main Vintage Navy Radio Page

Be patient and check back often - this project is just getting started!

1950's & 1960's individual HF & MF receivers

HF/MF Receivers
AN/FRR-22	MF shore version of SRR-12 w/ rack mount + EXT OSC input FRR-22 with AGC off-norm	0.25-8 mc - 29 tubes FRR-22 showing AGC off-norm instead of standby switch	RCA NAVSHIPS 92211 info/photos manual
AN/FRR-23	HF shore version of SRR-13 w/ rack mount + EXT OSC input	2-32 mc 29 tubes	RCA NAVSHIPS 92211 info/photos manual
AN/FRR-48(XW-1) HF DSB/SSB Receiver 2-32 mc Prototype Only General Electric model XSDR-1	Synthesized, synchronous detection, direct conversion See this paper for much more info And this article for a history of the development Bill Jones, Dr. John Costas, Roger Swanson, Jack Cunnif
Bottom of RF chassis by Bill Jones	Top of RF chassis by Bill Jones	Top of Synthesizer by Roger Swanson	Bottom of Audio, Alpha-Beta and Audio by Jack Cunnif
AN/FRR-59 AN/FRR-59A AN/FRR-59B AM-2477/URR amplifier - detector CV-920/URR converter - RF tuner	HF shore version of WRR-2() more FRR-59 photos	2-32 mc 1.0 kc tuning (59) 0.5 kc tuning (59A,B) Wadley loop - 65 tubes	National (59, 59A) Arvin (59B) info/photos diagram restoration downloadable manual

AN/MRR-2	MF mobile or transportable use AN/SRR-12 with waterproof case 115vac or 24vdc higher res photo	0.25-8 mc	RCA
AN/MRR-3 need photo - looks like MRR-2	HF mobile or transportable use AN/SRR-13 with waterproof case	2-32 mc	RCA
AN/SRR-12	MF shipboard version of FRR-22	0.25-8 mc 29 tubes	RCA info/photos manual Navships 91875
AN/SRR-13 AN/SRR-13A SRR-13 SRR-13A with standby switch	HF shipboard version of FRR-23 SRR-13A with AGC off-norm switch	2-32 mc 29 tubes SRR-13A showing AGC off-norm instead of standby switch	RCA Magnavox info/photos manual Navships 91875 article in Electric Radio magazine - July 1991 p 4
AN/TRR-5 R-366/TRR-5 LS-171/U CY-851/TRR-5	Morale MF/HF receiver - Transportable for use ashore		Manual downloadable from here

AN/WRR-2 AN/WRR-2A AN/WRR-2B upper - AM-2477/URR amplifier - detector lower - CV-920/URR converter - RF tuner	HF shipboard version of FRR-59() See FRR-59 block diagrams above	2-32 mc 1.0 kc tuning (2) 0.5 kc tuning (2A,B) Wadley loop 65 tubes	National (2, 2A) Arvin (2B) info/photos diagram restoration downloadable manual
AN/URR-22 (R-302/URR-22) need better photo	ship/shore entertainment rcvr replaces RBO similar to AN/URR-44	0.54-18.6 mc AM/CW	National
AN/URR-23	R-381/URR-23 (Collins 51J-1) or R-381A/URR-23 (Collins 51J-2) CY-1235/URR cabinet LS-175/U speaker	0.5 - 30.5 mc	Collins 51J-1 or Collins 51J-2 Contract NObsr-49134 (15 May 1950)
AN/URR-23A R-388/URR (Collins 51J-3 variant) CY-1235/URR cabinet LS-199/U speaker	photo courtesy of K4NCG Collins 51J-3 with MFP and modified antenna input ckt ?	0.5 - 30.5 mc Were all Navy R-388 receivers procured as AN/URR-23A systems? Click here for R-388 contract info page R-388 tag showing AN/URR-23A Navy contract number - thanks to W7HDL	Contract NObsr-52527 (22 June 1951) NAVSHIPS 91678
AN/URR-36 need photo	National HRO-50-1 with 4 coils (A-D), & speaker	50-430 kc & .05-35 mc	-
AN/URR-36A need photo	National HRO-50-1 (R-5234/URR-36A) with 10 coils, xtal calib, speaker & coil storage unit, and rack	50-430 kc & .05-35 mc	National Contract NObsr-71193 NAVSHIPS 91648
AN/URR-39	National NC-183MR (R-651/URR-39 with speaker (LS-228/U) & rack mount (MT-1529/U)	50-150kc & 0.54-31mc standard 47-55mc band replaced with VLF band and bandspread replaced with 0-200 logging scale	National - modified NC-183D standard NC-183D info manual
AN/URR-44 (R-892/URR-44)	ship/shore entertainment rcvr replaces RBO info & photo similar to URR-22	0.54-18.6 mc AM/CW	General Instruments NAVSHIPS 93316
AN/URR-51 ? need photo	R-388A	-	NAVSHIPS 92324
AN/URR-74(V) This is similar WJ-8716 Need AN/URR-74 photo		Watkins Johnson WJ-8718-A variant see photos & info here 5kc-30mc AM FM CW LSB USB ISB 0.3, 1, 3.2, 6, 16 kc bandwidths	Watkins-Johnson see photos & info here
WJ-8716 = AN/URR-74 AM (16 or 6 khz), SSB (3.2 khz), RTTY (1 khz) or CW (.3 khz). There is a mechanical BFO built in that can be adjusted in 10 hz increments using decadic thumbwheels The digital readout is clear and bright and goes to a resolution of 10 hz for precise tuning. Coverage of 5 khz to 30000 khz Selectivity of 16 / 6 / 3.2 / 1 / .3 khz BFO of + or - 8 khz and shown in it's own display to the left of the frequency readout 4 Tuning steps AGC fast / slow / off Modes of AM / FM / CW / LSB / USB / ISB AF/S-Meter 115/220 VAC Digital readout down to 10 hz Sensitivity of .4uV 16 dB (S+N)/N CW IF output RF gain Headphone and line out jacks Rack handles
R-274B/FRR (Hammarlund SP-600-JX-6 or SP-600-J-11 or SP-600-JX-35)		540kc-54mc	Hammarlund R-274B spec sheet NAVSHIPS 91661 SP-600 series info SP-600 manuals

R-274B/FRR "special" (Hammarlund SP-600-JL-24) need photo	Hammarlund SP-600-JL-24	100-400kc and 1.35-29.7mc	Hammarlund NAVSHIPS 91661 SP-600 series info SP-600 manuals
R-388/URR photo thanks to Don Smith	Collins 51J-3 Were all Navy R-388 receivers procured as AN/URR-23A systems? Click here for R-388 contract info page	What's this goofy contract number mean? MIPR 881-47159 Please send e-mail if you can help clarify this - thanks!	Collins Contract MIPR-881-47159 TM11-854 / TO16-35R-388-5
R-388A/URR need photo	NAVSEA manual	Collins 51J-4 Were any 51J-4's actually labeled as R-388A? Click here for R-388 and R-388A contract info page	Collins Contract NObsr-69046 (16 Nov. 1956) NAVSHIPS 92324
R-390/URR			Collins
R-390A/URR Many Navy R-390A units were modified with a green diode load jack on the front panel (FC 4)	Rear panel cover with AN connectors		Collins, other manufacturers R-390A FAQ page NAVSHIPS Manual & Field Changes info from CT manual

R-450/FRR-28	Hammarlund SP-600 modified by Northern Radio for AN/FRR-28 diversity system	More R-450/FRR-28 photos	Hammarlund SP-600 series info SP-600 manuals article in Electric Radio magazine - Sept 2004, p2
R-618/FRR-32 Need better photo	AN/FRR-23 modified for use in AN/FRR-32 dual diversity system	-	RCA
R-825/URR		TMC GPR-90 540 kc - 31 mc	spec sheet manual
R-840/URR need better photo		TMC GPR-90RX (same as R-825 plus xtal control) Contract NObsr-71790 540kc-31mc More photos	spec sheets manual - NAVSHIPS 93165
R-1051/URR R-1051A/URR R-1051B/URR R-1051C/URR R-1051D/URR R-1051E/URR R-1051F/URR R-1051G/URR R-1051H/URR R-1051 Web Page covering variants and other info	solid state (plus 2 tubes in RF) late 60's replacement for most receivers	R-1051 Web Page covering variants and other info	R-1051 Web Page covering variants and other info article in Electric Radio magazine November 1993 p4
R-1414/URR photo thanks to K1VVC	HF - solid state	Please send e-mail if you have any more photos or info	Sylvania Manual available from www.manualman.com
R-2174/URR	LF/MF/HF solid state	RACAL RA6790/GM	RACAL
R-2307/U (Cubic R-3030A)		Twin receivers 50 kc to 30 mc range IF outputs of 40.455 mc and 455 kc Highly stable with + or - 1 PPM BFO of + or - 10 kc 100 memory channels per receiver Bandwidths of .5 / 2 / 4 / 8 / 16 kc Operating modes of AM / USB / LSB / CW / FM Tuning resolution to 10 cps IF passband shift from .1 to +/ - 9.99 kc	Cubic R-3030A
R-2368/URR	Variant of Harris RF-590 LF/MF/HF solid state		Harris
R-2557/URC	Variant of Harris RF-590 used in AN/URC-131 HFRG		Harris
75A-4 75A-4 (Mod)	75A-4 - bands 1.5 to 2.5 mc 3.2 to 4.2 mc 6.8 to 7.8 mc 14 to 15 mc 20.8 to 21.8 mc 26.5 to 27.5 mc 28 to 29 mc 29 to 30 mc	75A-4 (Mod) - bands 1.5 to 2.5 mc 3.2 to 4.2 mc 4.2 to 5.2 mc 5.2 to 6.2 mc 6.8 to 7.8 mc 13 to 14 mc 14 to 15 mc 29 to 30 mc	Collins 75A-4 with 0.8, 3.1, 6.0 kc filters - used by USN in early SSB tests - other uses?? contracts: 75A-4 NObsr-71287, 27 April 1956 75A-4 (Mod) NObsr-71289, 27 April 1956 Manual NAVSHIPS 92788

My main interest is in HF communications in the 1950's and early 1960's but this is a work in progress
Please send me e-mail with additions, corrections, links, photos, etc. - thanks, Nick K4NYW
Main Vintage Navy Radio Page

Be patient and check back often - this project is just getting started!
Last updated 01/11/2012

US Navy HF & MF Receivers - 1950's & 1960's

1950's & 1960's individual HF & MF receivers

HF/MF Receivers

AN/FRR-22

AN/FRR-23

AN/FRR-48(XW-1)

AN/FRR-59 AN/FRR-59A AN/FRR-59B

AN/MRR-2

AN/MRR-3 need photo - looks like MRR-2

AN/SRR-12

AN/SRR-13 AN/SRR-13A

AN/TRR-5

AN/WRR-2 AN/WRR-2A AN/WRR-2B

AN/URR-22 (R-302/URR-22)

AN/URR-23

AN/URR-23A

AN/URR-36

AN/URR-36A

AN/URR-39

AN/URR-44 (R-892/URR-44)

AN/URR-51 ?

AN/URR-74(V)

R-274B/FRR

R-274B/FRR "special"

R-388/URR

R-388A/URR

R-390/URR

R-390A/URR

R-450/FRR-28

R-618/FRR-32 Need better photo

R-825/URR

R-840/URR

R-1051/URR R-1051A/URR R-1051B/URR R-1051C/URR R-1051D/URR R-1051E/URR R-1051F/URR R-1051G/URR R-1051H/URR

R-1414/URR

R-2174/URR

R-2307/U (Cubic R-3030A)

R-2368/URR

R-2557/URC

75A-4 75A-4 (Mod)

AN/FRR-59
AN/FRR-59A
AN/FRR-59B

AN/MRR-3
need photo - looks like MRR-2

AN/SRR-13
AN/SRR-13A

AN/WRR-2
AN/WRR-2A
AN/WRR-2B

AN/URR-22
(R-302/URR-22)

AN/URR-44
(R-892/URR-44)

R-618/FRR-32

Need better photo

R-1051/URR
R-1051A/URR
R-1051B/URR
R-1051C/URR
R-1051D/URR
R-1051E/URR
R-1051F/URR
R-1051G/URR
R-1051H/URR

R-2307/U
(Cubic R-3030A)

75A-4
75A-4 (Mod)