For high-power enthusiasts

IslandPink · Post by **IslandPink** » Mon Feb 18, 2019 6:14 pm

Something that popped up in discussions on the Joelist today -
http://www.hfti.fr/userfile/by1144l1.pdf
Some nice spec values there. Needs a special boiler for steam-cooling of the anode, apparently.

pre65 · Post by **pre65** » Mon Feb 18, 2019 6:37 pm

E2V were EEV = English Electric Valves.

Not far from me in Chelmsford.

Filament current 263 - 311A @ 9.6v

And weighs 57KG.

WOW.

RhythMick · Post by **RhythMick** » Mon Feb 18, 2019 6:41 pm

Scary. You'd have to be mad, mad I tell you mad, mad. Nobody around here would... Nurse, nurse, time for my meds...

IslandPink · Post by **IslandPink** » Mon Feb 18, 2019 8:08 pm

There are all sorts of fun values on there - bias : -765V , grid current : 3.1amps

Mike H · Post by **Mike H** » Tue Feb 19, 2019 7:03 pm

Note the warnings about radiation hazard.

jack · Post by **jack** » Tue Feb 19, 2019 9:07 pm

When I were a lad, we went on a trip into the crystal palace BBC transmitter rooms, deep beneath the mast...

They had water-cooled valves like these for TV. Beasts. Cabinets were glass-fronted and you could see them boiling away merrily...

chris661 · Post by **chris661** » Wed Feb 20, 2019 7:17 pm

Serious power there. I think you'd struggle to run it on a domestic (~100A) supply. A 63A 3-phase would have a fighting chance.

Is it bad that I want to grab a few of these for PA use?

Chris

audio-talk

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