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Registered Member #941
Joined: Sun Aug 05 2007, 10:09AM
Location: in a swedish junk pile
Posts: 497
8.5V x 155A = around 900 watts, a MOT is only good for around 650 watts and thats up to max 30 minutes with forced air cooling, and the wire capable of 8.5V at 155A would no way on earth fit on a MOT.
Registered Member #3637
Joined: Fri Jan 21 2011, 11:07PM
Location: Buffalo, NY
Posts: 1068
Or use the beefiest switch mode power supply in existence. It couldn't be that hard, since low voltage mosfets can handle like 300 amps. Now, designing the transformer itself could be an issue, unless you went some sort of buck converter route.
Registered Member #2099
Joined: Wed Apr 29 2009, 12:22AM
Location: Los Altos, California
Posts: 1716
8.5V x 155A = around 900 watts, a MOT is only good for around 650 watts and thats up to max 30 minutes with forced air cooling, and the wire capable of 8.5V at 155A would no way on earth fit on a MOT.
Uh, 8.5V x 155A = 1317.5 watts.
This datasheet says 8.3 V at 135-155A. At the middle of that current range it would still dissipate over 1200 watts.
What are you going to drive the grid with? Not exatcly a MOSFET gate; the low frequency power gain is less than 100 if I read the datasheet correctly. User must limit the start-up filament current to 218 amperes (Typical cold resistance is 0.006 ohms) and limit the grid dissipation to 800 watts.
Registered Member #3974
Joined: Mon Jun 27 2011, 06:50PM
Location: Germany
Posts: 23
hows the perchus going bwang, did you only pay 10$ for those tubes? if so i would order some of them too. and yeah maby it was a pricing error but if thay say that theyr only 2$ then they as far as i know have to sell them for that price untill they correct the price. and maby those tubes are so old that they dont think that they would work or...
and how much did you actualy pay for your tubes sofar bwang?
Registered Member #1403
Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
Prof. TeraVolt wrote ...
hows the perchus going bwang, did you only pay 10$ for those tubes? if so i would order some of them too. and yeah maby it was a pricing error but if thay say that theyr only 2$ then they as far as i know have to sell them for that price untill they correct the price. and maby those tubes are so old that they dont think that they would work or...
and how much did you actualy pay for your tubes sofar bwang?
They are not obliged to sell to a incorrect written price on a homepage or catalogue, errors do happen and are not legally binding.
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Is this right?!
