Has 15 tubes and a super heterodyne circuit that is respected even today. In this page you find schematic, users and instructions manuals, service. The hallicrafters company manufactured, marketed, and sold radio equipment, and to a lesser. Technical data, operating and service manuals provided by myself and other hams covering various technical subjects, amateur radio receivers. Hallicrafters manuals manuals always wanted please if you have a manual that is missing from this section. Hallicrafters sx 71 run 4 schematic, authored by jesse r. Compliments of rodney vk2ktz and chuck n7rhu sx 71 schematic. Hallicrafters sx110, sx71 and s107 communications receivers. Antique radio forums view topic hallicrafters sx71 repair. Demo vintage crosley wood tube type am tombstone radio receiver classic antique piece bold sound duration. Free hallicrafters diagrams, schematics, service manuals. The sx 71 is a 5 band communications receiver covering am broadcast and shortwave from 538 khz to 34 mhz in four overlapping bands. Chicago, il and arlington, build 19491955, 10 pictures, 12 schematics, tubes, united states of america.
Sx71 receiver with substitute tuning and volume knobs and missing pushon. The white dials were for the earlier models approximately 19491950 and the black dials came out in the later years of production. The hallicrafters company warrants each new radio product manu factured by it to. There is a parts list, and a nice big 11x17 foldout schematic. Foreign buyers are welcome thanks to the ebay global shipping program, but your country may charge you an. Chicago, il and arlington, build 19531955, 9 pictures, 1 schematics, 4 tubes, united states of america. With the sx 71, you can follow the alignment procedure.
The excerpt from the hallicrafters sx 71 schematic is of the 1st if amp, not the mixer. The sams schematic shows the two 100k ohm resistors needed for fm. Find great deals for vintage hallicrafters sx 71 ham radio communications receiver. Hallicrafters sx 71 communications receiver run4 full details on the sx 71 can be found here. The following year, hallicrafters changed the sx71 dial to black with white markings. Owners manual and service bulletin for hallicrafters sx 71. These manuals are available for download and free of charge. Vintage hallicrafters sx71 ham radio communications. If you get no sound from the speaker at step 1, then you need to try an audio frequency signal at pin 5 of the 6k6gt audio output tube. Hallicrafters sx71 receiver the sx71 receiver was manufactured by hallicrafters from 1949 to 1954.
Sx 71w sx71 white dial plate, general coverage receiver, double conversion, tunable hfo. The sx 71 is a nice receiver, although not that great on the higher frequencies. Technical data, operating and service manuals provided by myself and other hams covering various technical subjects, amateur radio receivers, transmitters, transceivers and accessories. Hey all, the nice thing about a lot of documentation for the sx 71 is there is a lot of documentation, except when there is a conflict. A fifth band covers 46 to 56 mhz directly on the bandspread dial which is also calibrated for the 80, 40, 20, and 10 meter ham bands.