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Posted: 12/18/2016 11:30:58 PM EST
Wondering if it's possible to determine tube specs for a unit that doesn't have a spec sheet. Or are the specs only determined at the factory at the time of manufacture?
Link Posted: 12/19/2016 3:55:35 AM EST

There's a few places that do it - iirc, it costs a little over $100, which is pretty cheap, but they can't measure all the specs.

Easier to compare it directly to a tube of known performance and approximate it's specs.

Link Posted: 12/19/2016 9:39:19 AM EST
You can also find out stuff like resolution yourself if you download some charts for it and set it up in a dark room at various light levels.
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