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> Manual+setup data jackson 634 & 637 tube tester checker
Manual+setup data jackson 634 & 637 tube tester checker
INSTRUCTIONS + Tube Data Setup Charts + Supplements for JACKSON 634 & 637 Tube Tester Checker
This is a PAPER package, professional spiral bound, quality copy.
This package contains all of the following information:
* Usage Instructions (separate instructions for each 634 and 637 models)
* 3 different TUBE DATA SETUP CHARTS, including the original chart that lists the early [01-A] tubes!
1. "3-40" [very early chart, 1940 vintage, has data for the the very early tubes, such as 01-A, etc...]
3. "634/637-13, 32-43, 753"
* final Tube Data Setup Chart Supplement (even includes data for 6550 power tube!]
