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postit
Guest
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 Posted:
Tue Jan 18, 2005 10:13 pm Post subject:
Tube Tester - NOS reading would be? |
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Sencore Mighty Mite II TC114.
Testing 6L6GC and 12AX7.
Readings show 109 for the 6L6GC,
and 106/106 for the 12AX7.
Would 100 be considered NOS i.e. what reading would be considered a
'NEW' tube?
Thanks
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Ian Iveson
Guest
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| Posted:
Wed Jan 19, 2005 1:16 am Post subject:
Re: Tube Tester - NOS reading would be? |
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New means new, nothing to do with readings.
You can look it up in a dictionary. It will be somewhere between
never and next. If you don't find out you could easily get ripped
off at the shop.
cheers, Ian
"postit" <stop@spam.net> wrote in message
news:AzbHd.8432$p12.7071@fe10.lga...
| Quote: | Sencore Mighty Mite II TC114.
Testing 6L6GC and 12AX7.
Readings show 109 for the 6L6GC,
and 106/106 for the 12AX7.
Would 100 be considered NOS i.e. what reading would be considered
a 'NEW' tube?
Thanks |
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| Back to top |
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postit
Guest
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| Posted:
Wed Jan 19, 2005 3:33 am Post subject:
Re: Tube Tester - NOS reading would be? |
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Ian Iveson wrote:
| Quote: | New means new, nothing to do with readings.
You can look it up in a dictionary. It will be somewhere between
never and next. If you don't find out you could easily get ripped
off at the shop.
cheers, Ian
"postit" <stop@spam.net> wrote in message
news:AzbHd.8432$p12.7071@fe10.lga...
Sencore Mighty Mite II TC114.
Testing 6L6GC and 12AX7.
Readings show 109 for the 6L6GC,
and 106/106 for the 12AX7.
Would 100 be considered NOS i.e. what reading would be considered
a 'NEW' tube?
Thanks
|
It's tubes that I have and my tester I was wondering how close to 'new'
they might be to get a gauge on lifespan and for reference. |
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Ian Iveson
Guest
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| Posted:
Wed Jan 19, 2005 8:11 am Post subject:
Re: Tube Tester - NOS reading would be? |
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"postit" <stop@spam.net> wrote
| Quote: |
It's tubes that I have and my tester I was wondering how close to
'new' they might be to get a gauge on lifespan and for reference.
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My meter says less than 70% of specified emission at typical
operating point is a reject.
It doesn't say new or old...you are barking up the wrong tree there.
Assuming linear degradation 90% emission would suggest 30% shot,
etc, pro rata. Wouldn't give me a legal sale description here
though.
Some valves last a long time, some not so long, so guessing how used
it is requires experience of that particular kind of valve. Even
then it would only be a guess.
Use them until they don't work properly any more, then fit ones that
do.
cheers, Ian |
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