Mehridian Sanders #1 Posted November 13 Found this when going through an Estate sale. Sent from my SM-G955U using Tapatalk Quote Share this post Link to post Share on other sites
Albert #2 Posted November 13 I believe that has a Thunderbolt 3 interface... ..Al 1 Quote Share this post Link to post Share on other sites
Mehridian Sanders #3 Posted November 13 I believe that has a Thunderbolt 3 interface... ..AlJahahahahahhaSent from my SM-G955U using Tapatalk Quote Share this post Link to post Share on other sites
TheBF #4 Posted November 13 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) 1 Quote Share this post Link to post Share on other sites
Mehridian Sanders #5 Posted November 13 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)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 Quote Share this post Link to post Share on other sites
Opry99er #6 Posted November 13 Looks like a EL84 power amp tube for audio. Quote Share this post Link to post Share on other sites
TheBF #7 Posted November 13 (edited) 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 November 13 by TheBF Quote Share this post Link to post Share on other sites
1980gamer #8 Posted November 14 Take it to your local Radio Shack, they have a nice tester too. WOW, time just zips by. 1 Quote Share this post Link to post Share on other sites
Mehridian Sanders #9 Posted November 14 Take it to your local Radio Shack, they have a nice tester too. WOW, time just zips by. They all shut down here Sent from my SM-G955U using Tapatalk Quote Share this post Link to post Share on other sites
Papalapa #10 Posted November 14 (edited) Wow! When I was young I remember to have repaired some radios with lamps, mainly replacing the UY41 of the power supply. Edited November 14 by Papalapa Quote Share this post Link to post Share on other sites
ElectricLab #11 Posted November 22 Oooooh, pretty glowFET 1 1 Quote Share this post Link to post Share on other sites
HOME AUTOMATION #12 Posted November 22 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!)! Quote Share this post Link to post Share on other sites
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