[Hallicrafters] SX-42 schematics.

[Waldo Magnuson]

    I'm (trying) to restore two SX-42s and am having a little difficulty 
getting the tube voltages correct and find the resistances at the tube 
pins are not correct either.
My SX-42 have serial numbers HA-73528 and HA-76643 and I'm using 
schematics from SAMS (dated 8/48) and BAMA.
    My problem is that the two schematics do not agree and in fact I 
think the SAMS has an error in that supply voltage is not applied to 
the first limiter (7H7) plate.  As a consequence the S-meter does not 
respond correctly and probably other effects occur too.
    I think the s/n are probably a latter series (but I'm not sure).  
Does anyone have a schematic other than the BAMA and the 8/48 SAMS that 
might resolve some of my problems.  In advance, thanks.
Skip Magnuson