Heathkit IT-17 Tube checker - diyAudio
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Old 13th March 2003, 03:12 AM   #1
diyAudio Member
Join Date: Jan 2003
Location: Boston USA
Default Heathkit IT-17 Tube checker

Anyone have experience with one? I have one, but without the manual, and have a operation question. The switch setup for every tube part number has a code which I can't figure out. The switch identifying letter (if used for testing a particular tube) is either shown in light print, or bold print, or grouped with another switch(s) within parenthesis. What do these diferent ways of showing the switch identifiers mean?

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