41 rows · The only SP's not included on this list that I'm aware of are the "hybrid" SP's . spjx: service instructions: spjx: overhaul: spjx to 31ra mod: addition of "if gain" label control this explains the mystery label, found on some units: download k: spjx hammarlund manual (diversity receiver) download mb: spjx operations: spjx jx preventive maint. spjx. The Hammarlund SP Files. Here is a collection of PDF manuals, various mods, both military and civilian, and a collection of e-mail archives on the Hammarlund SP, both -JX and VLF versions.
I hear the SP doesn't have as warm a sound as some other boat anchors. A much more limited dynamic range by design, so I've read. Well, I have started the recapping process following the second schematic in the Issue 4 manual. This schematic applies to the JX, JX and perhaps a few other direction finder type receivers. The Hammarlund SP was produced with many variants mostly from , but later versions were manufactured and available through the 70's. There were approximately 40 versions with various contracts to satisfy specific needs for service. This brief description (with a comprehensive manual for download), accurately describes the "JX The Hammarlund SP JX The Hammarlund SP is certainly a favorite receiver of many vintage radio operators. The SP's massive proportions, super-smooth tuning and great performance usually result in the receiver assuming a prominent position in the ham station landscape.
AN This is the first of four Air Force manuals on the SP They have two sets of numbers - one starts with "AN" and the other starts with "T.O." They have two sets of numbers - one starts with "AN" and the other starts with "T.O.". The Hammarlund SP Files. Here is a collection of PDF manuals, various mods, both military and civilian, and a collection of e-mail archives on the Hammarlund SP, both -JX and VLF versions. BAMA (Boat Anchor Manual Archive) has about four of the six issues of the Hammarlund manual online plus other SP information. Generally, Hammarlund Issue 1 and 2 are for the earliest versions while Issue 3 is sort of a transition version. Issues 4, 5 and 6 are for the later versions.
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