Hammarlund Sp 600. Hammarlund SP600JX26 US Army Signal Corps R274C/FRR HF Tube Radio The 1948 SPC-600X Advertisement from 1948 ARRL Radio Amateur's Handbook: The Signal Corps had a long relationship with Hammarlund and Super Pro receivers beginning in 1935 with the SPA receiver. All have their strengths, weaknesses and quirks but I consider the SP-600 and the R-390A the best US tube-type communications receivers of the 1950-60's
12. Hammarlund SP600 JX21 Heinemo Radio from www.heinemoradio.se
Northern Radio located in New York City made many modifications available for SP-600's such as an IF gain control located where the dial lock was normally located View and Download Hammarlund SP-600-J instructions manual online
12. Hammarlund SP600 JX21 Heinemo Radio
In 1947 the SP-600 Super-Pro receiver, which surpassed the SP-200 in performance, was introduced The Hammarlund SP-600 JX-17 is an example of a laboratory-grade HF receiver dating from the early 1950s The SP-600 series were widely used throughout the world for military, laboratory and commercial application
Hammarlund SP600 JX21 Radio. The manuals and ads show pretty pictures of the SP-600 in a nice rack box, optional at extra cost Remarks: Describe your experience with the Hammarlund SP-600 and tell us why you give it the rating you did.
RigPix Database Hammarlund SP600J "Northern Radio 159". View and Download Hammarlund SP-600-J instructions manual online If you have room for a Hammarlund SP-600 and can find one that hasn't been hacked half to death these radios are well worth restoration and maintenance.