Holy Mullards, tubeman! For real?

novemberrain · Post by **novemberrain** » Fri 02/02/07 4:11 pm

Either they're real or they're the best fakes I've ever seen!

Turmoil · Post by **Turmoil** » Fri 02/02/07 4:14 pm

In the voice of Homer Simpson. Mmmm Mullard Pentodes

JoeV · Post by **JoeV** » 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....

BBQLS1 · Post by **BBQLS1** » Fri 02/02/07 4:59 pm

What did you buy?

BBQLS1 · Post by **BBQLS1** » Fri 02/02/07 5:00 pm

deleted

Turmoil · Post by **Turmoil** » Fri 02/02/07 6:03 pm

That ones labeled Supergroup right? Oh man those things sound friggin' sweet! Congrats!

Chappy · Post by **Chappy** » 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

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Holy Mullards, tubeman! For real?