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In the Forum: Analog Playback
In the Thread: 7788 tube mic pre design
Post Subject: A Bin Full of TubesPosted by hagtech on: 12/31/2007
I was rummaging through a pile of tubes and came across a pair of 8233. Medium size tube, gold pins, PQ. I think it might have been a video output tube for an old Tek scope. So I looked it up on Duncanamps. 10W plate dissipation, and in triode mode it looks like about mu of 30 and Ra of 500 ohm. High transconductance. Looks to me like this would also make a fine driver tube. It could make a 1W SET amp or be great for a headphone stage. Capable of a lot of current. Interesting tube. Too much gain to make a linestage out of it.
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