6DJ8 measurement error on Hickok 600A

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600A manual

I have a Kickok 6000A. For a 6DJ8 the roll chart shows 7000 Mutual Conductance / MICROMHOS.

For a 12AX7 the roll chart shows 1250 MICROMHOS.
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Consolidated Test Data
For Hickok Model 533A-600A-605A
Tube Testers

Page 55
6DJ8
6.3 EV-7608-0 24 92 P4 9250 Triode #1.
..... EV-2103-0 24 92 P4 9250 Triode #2.
Mutual Conductance/ Micromhos, 9250

Where are you setting the English for the Mutual Conductance/ Micromhos test? The red dot near 92? Then use/read the 15000 scale?
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Thank your for your reply Jea48. I did set the tester as you mentioned. I still get about 7000 reading on new tubes (should be around 9250).

Thank your for your reply Jea48. I did set the tester as you mentioned. I still get about 7000 reading on new tubes (should be around 9250).
08-01-15: Cygnus_859

Cygnus_859,

Are the new tubes you are testing actually labeled 6DJ8 tubes or are they labeled 6922 tubes?

6922 ( Hickok 600A tube settings and Mutual Conductance readings.)
6.3 EV-7608-0 27 90 P4 6500 Triode #1. R
6.3 EV-2103-0 27 90 P4 6500 Triode #2.
Mutual Conductance/ Micromhos 6500.

What you are reading sounds more like a new 6922 tube.

7308 ( Hickok 600A tube settings and Mutual Conductance readings.)
6.3 EV-7608-0 27 90 P4 6500 Triode #1. R
6.3 EV-2103-0 27 90 P4 6500 Triode #2.
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Jim

Cygnus_859,

How about an update.
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Jim