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(Also, this was Episode 821)
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(I’m glad @RAvery got the 813 tube - I missed a chance to show the 807, the basis for many UK guitar amps, and four of which could cast a romantic(?) red and blue glow over a fair sized room.)
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I will take the compliment, and secretly wish I knew more about tubes/valves than I actually do.
This tube is a triode. It has three odes.
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A different kind of valve. (You can’t see the number but yes it is an 827)
The 826 above is an acorn tube, basically state of the art in the 1940s.
-ode is from the Greek odos, a way (thus cathode, the way down because metals come down at the cathode).
A triode has a cathode, a grid and an anode. I’m sorry about my stutter.
I liked glass valves because just from looking at them you could work out what they were for, how much power they would take, current handling and so on. It was like looking at an engine. Then they started putting them in steel tubes. No fun any more.
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Yes, I agree tubes should be encased in glass. Otherwise you might as well have a transistor.
You never thought I could find “828” and “Ode” in the same picture did you? And furthermore, Carol Lombard apparently returned from the dead just to make this recording!
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