US Navy LF & VLF Receivers - 1950's

LF & VLF Receivers
model type primary use freq features manuf links
AN/BRR-3 AN_BRR-3 faceplate.jpg (82545 bytes)

brr3-104.JPG (198737 bytes)

VLF - submarine  

brr3-sys-01.JPG (71293 bytes)

 14-30 kc

CW/FSK - built-in FSK converter and scope. Manuf by ITT Federal

AN_BRR-3 nameplate.jpg (139353 bytes)

AN_BRR-3_faceplate2.JPG (66073 bytes)

     ITT Federal  NAVSHIPS 93385   
AN/FRR-18 similar to AN/FRR-21 VLF/LF shore fixed frequency
similar to FRR-21		 tunable or single xtal channel
14-600 kc		 xtal control
28 tubes		 RCA
AN/FRR-21 frr21-01.jpg (41571 bytes)
FRR-21 with standby switch

srr21-07.JPG (165384 bytes)
FRR-21 with no standby switch

 VLF/LF shore
version of SRR-11
w/ rack mount

frr21-06.JPG (163334 bytes)
FRR-21 with no standby switch

 14-600 kc 28 tubes RCA NAVSHIPS 92211
AN/FRR-30
(R-519/FRR-30)		 similar to AN/FRR-26 LF shore single frequency
(similar to FRR-26)		 not tunable - xtal control only
200-500 kc		 xtal control     NAVSHIPS 92679
AN/MRR-1 need photo VLF/LF for mobile or transportable use
AN/SRR-11 with waterproof case		 14-600 kc    RCA    
AN/SRR-11
AN/SRR-11A		 srr11-01.jpg (119932 bytes)

srr11-09.JPG (171386 bytes)
SRR-11

 VLF/LF shipboard
version of FRR-21

srr11a-11.JPG (150029 bytes)
SRR-11A

 14-600 kc 28 tubes RCA
Magnavox
AN/SRR-19 srr19-01.jpg (83282 bytes)
thanks to this site		 LF shipboard 30-300 kc  30 nuvistors National More photos
AN/WRR-3
(R-1134/WRR-3)

AN/WRR-3A
(R-1134A/WRR-3A)

AN/WRR-3B
(R-1134B/WRR-3B)

  		WRR-3
wrr3-01.JPG (78061 bytes)		 VLF/LF ship/sub
14-600 kc
wrr3-02.JPG (105135 bytes) 		 

wrr3-03.JPG (91806 bytes)

    Magnavox (WRR-3)

Capehart (WRR-3A)

Bendix (WRR-3B)

 NAVSHIPS 0967-035-1010

download here thanks to W6GER 
WRR-3B wrr3b-01.jpg (55019 bytes) wrr3-101.jpg (32299 bytes)  wrr3-106.jpg (26647 bytes)    -   -   -
R-389/URR r389-111.jpg (109218 bytes) VLF/LF used shipboard & ashore
15-1500 kc

Signal Corps acquisition but used by USN

 r389-112.jpg (112358 bytes) - Collins TM 11-855

See W5OR's web site with tons of photos and info
r389-116.jpg (118938 bytes) r389-114.jpg (175998 bytes) r389-115.jpg (177929 bytes) - - -
R-1655/URR r1655-01.jpg (45360 bytes)  Mostly used by SECGRU I think
r1655-04.jpg (52230 bytes)		 r1655-05.jpg (52345 bytes) -  -  -