Carl, I think the usual way is 5% over voltage for about 10-15
hours. But in this case it sounds like the tubes maybe about dead.
Mark WB8JKR
On Tue, 27 Oct 1998 12:16:16 -0500 km1h@juno.com writes:
>
>Anyone have experience with these tubes? I picked up a SB-200 thru
>Packet that was " mint, works great, etc". Damn thing barely makes
>350W out, and looks like it was in a tobacco
>barn. I have cooked the filaments for 1.5 hours at 15% overvoltage and
>picked up about 50W per tube. Do I dare leave the overvoltage run
>overnight, etc
>or go higher in voltage, or what ???
>
>Tnx Carl KM1H
>___________________________________________________________________
>You don't need to buy Internet access to use free Internet e-mail. Get
>completely free e-mail from Juno at http://www.juno.com/getjuno.html
>or call Juno at (800) 654-JUNO [654-5866] -- FAQ on WWW:
> http://www.contesting.com/ampfaq.html Submissions:
>amps@contesting.com Administrative requests:
>amps-REQUEST@contesting.com Problems:
>owner-amps@contesting.com Search:
>http://www.contesting.com/km9p/search.htm
___________________________________________________________________
You don't need to buy Internet access to use free Internet e-mail.
Get completely free e-mail from Juno at http://www.juno.com/getjuno.html
or call Juno at (800) 654-JUNO [654-5866]
--
FAQ on WWW: http://www.contesting.com/ampfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|