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Author Topic: 3-550z tube  (Read 2002 times)
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KE6DF
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« on: March 19, 2012, 09:34:08 PM »
Does anyone have info on the 3-550z tube?

A good guess would be it's just a 3-500z with a little extra plate dissipation.

But that would be a guess.

Does it have the same filament specs and pin-out as the 3-500z?

Dave
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KM1H
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« Reply #1 on: March 20, 2012, 09:21:14 AM »
Never heard of it.

Svetlana had a 3-600Z announced but it never worked correctly and was cancelled.
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Patrick J. / KD5OEI
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« Reply #2 on: March 20, 2012, 10:28:41 AM »
I believe it is a typo. That # can be seen in various searches where it looks like the topic is intended to be the 3-500.
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