[Heath] IT-17 Tube Tester question

[Gordon Batey]

Good morning,

My listings all say type 2.  I am sure that I have checked the 6sn7 and do
not recall any problems.  Perhaps the tester is assembled incorrectly?

73 Gordon WA4FJC

-----Original Message-----
From: Heath [mailto:heath-bounces at puck.nether.net] On Behalf Of Terry Perdue
Sent: Friday, February 19, 2016 5:08 PM
To: heath at puck.nether.net
Subject: [Heath] IT-17 Tube Tester question

Does anyone recall having a problem testing 6SN7 tubes? I've tested a number
of them, and the meter always pegs violently using the listed settings. I've
noticed that changing the 'Type' setting to 1 (the chart says to use 2),
gives an in-scale reading. But I have a later loose-leaf listing that was
compiled after the roll-chart was produced, listing many new tubes that
aren't on the roll, and it still shows type 2 for this tube.

Any comments? Other types found that don't test properly using the listed
settings? Or maybe no one uses tube gear anymore...
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