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Hoffman Amps Forum image Author Topic: Strange looking tube, add one image to this  (Read 5397 times)

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Offline kagliostro

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Strange looking tube, add one image to this
« on: May 08, 2015, 12:59:25 pm »
I've think it will be fine to see strange tubes like this, post an image also you





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Offline shooter

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Re: Strange looking tube, add one image to this
« Reply #1 on: May 08, 2015, 05:49:14 pm »
Pre amp tube for a 25kw rf amp used in MRI
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Went Class C for efficiency
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