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Mehridian Sanders

And now for something completely different..

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I make and use microphones with such devices in them. They sound great but not very efficient. :)  

Check out the value. It might be worth something. What number is it?

It looks like something in the EF800 family. (Ya I am old)

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I make and use microphones with such devices in them. They sound great but not very efficient. atariage_icon_smile.gif  
Check out the value. It might be worth something. What number is it?
It looks like something in the EF800 family. (Ya I am old)
Unfortunately the name has been worn away. I know very little about these tubes. All I know is that they are not gold plated pins and there are 9 of them. Bout as big as thumb... hmm maybe Google image can find something close.

Sent from my SM-G955U using Tapatalk

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11 minutes ago, Opry99er said:

Looks like a EL84 power amp tube for audio.

It is a beam power tetrode but I don't recognize open anode, and the anode seems too short for an EL84/6BQ6 6BQ5

Edited by TheBF

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Wow! When I was young I remember to have repaired some radios with lamps, mainly replacing the UY41 of the power supply.

Edited by Papalapa

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I did the same... across open B+ regulators, for CRT TVs in the '80s and '90s. Usually, it took a couple 100 watters. In the late '90s, I found an old  repair schematic that showed this technique(for diagnostic use only!)!:twisted:

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