[Heathkit] Heathkit tube checker manuals

[J. Allen Call]

FS: Original Heathkit manual #595-1976 for the Tube Checker Model
IT-3117.  It contains construction notes, parts list, assembly, testing
and schematics.  Also included it an original Heathkit  #597-1442 Tube
Data chart
for the IT-17, IT-21 and IT-3117 tube testers.  Contains many pages of
tube setups. Heathkit manual #597-1442.  $25.00 for both manuals plus
media shipping.

J
W7KSG