US Navy VHF & UHF Receivers - 1950's

VHF/UHF Receivers
AN/FRR-27 R-518/FRR-27		VHF shore (similar to FRR-26)	100-156 mc xtal control
AN/URR-9		UHF 225-400 mc AM manual & 10 channel xtal control similar to RDZ	double conversion superhet 18.6 & 3.85 mc IF National NAVSHIPS 91201
AN/URR-13 AN/URR-13A AN/URR-13B AN/URR-13C R-266()/URR-13() (formerly RED)	UHF 225-400 mc AM 1 xtal channel or tunable	Crystal pack for URR-13 & URR-35	single conversion superhet Federal Espey NAVSHIPS 91270
AN/URR-21 AN/URR-21A R-432/URR-21	VHF 115-156 mc AM manual or 4 channel xtal control superhet - 12 mc IF Note erroneous label as transmitter	Air Associates Inc.	NAVSHIPS 91462(A) NAVSHIPS 91497
AN/URR-27 AN/URR-27A (R-516()/URR-27())	VHF 105-190 mc AM manual or 1 channel xtal control		National URR-27 Clearfield URR-27A NAVSHIPS 91771 info, schematic, & photos

AN/URR-28(XN-1)	info thanks to Ed KD6EU		URR-35A redesign with 10 channels - probably not put into production National NAVSHIPS 92563
AN/URR-35 AN/URR-35A AN/URR-35B AN/URR-35C AN/URR-35D R-482()/URR-35()	AN/URR-35A AN/URR-35C	UHF 225-400 mc AM manual or 1 channel xtal control URR-35D spec sheet	dual conversion superhet 18.6mc & 1.775mc IF Federal National Rauland-Borg Western Electric NAVSHIPS 91906 (35) 92022 (35A) 92676 (35C)