Posted: Fri 02/02/07 4:11 pm
Either they're real or they're the best fakes I've ever seen! 
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Holy Mullards, tubeman! For real?
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Posted: Fri 02/02/07 4:14 pm
In the voice of Homer Simpson. Mmmm Mullard Pentodes
Posted: Fri 02/02/07 4:23 pm
Nope. Fakes. Shoot me an email and I'll send you my address so I can dispose of them properly for you. Damn shame, man.... 
Posted: Fri 02/02/07 4:59 pm
What did you buy?
Posted: Fri 02/02/07 5:00 pm
deleted
Posted: Fri 02/02/07 6:03 pm
That ones labeled Supergroup right? Oh man those things sound friggin' sweet! Congrats!
Posted: Fri 02/02/07 6:17 pm
If the resistor has 318mv across it then it is passing 318/6=53ma. If all four of the cathodes are tied in parallel, and assuming that they are all matched then each tube is only passing 53/4=13.25ma through its cathode.
The power dissipation of each tube (for both the screen and the plate) is then only P=I*R which is .01325A*619V=8.2Watts. So your tubes should be fine assuming that I am understanding your explanation of the hookup.
Chappy
The power dissipation of each tube (for both the screen and the plate) is then only P=I*R which is .01325A*619V=8.2Watts. So your tubes should be fine assuming that I am understanding your explanation of the hookup.
Chappy