Curt et al, I've had good success with Antique Electronic Supply on the web at http://www.tubesandmore.com/
They have lots of good NOS tubes and you might be able to request a particular brand such as Sylvania. 73, Eric KA8FAN ________________________________ From: Curt <[email protected]> To: [email protected] Sent: Saturday, July 11, 2009 4:35:53 PM Subject: [Drakelist] T-4X Troubles Solved The behavior of my T-4X with plate current dip normally and load properly on 80 & 40 but not on higher bands ended up being the 6JB6 tubes. My T-4XB worked fine on all bands, so first I installed the final tubes from the T-4X into the T-4XB. When I did that, the T-4XB behaved as the T-4X had, no dip on 20, 15, & 10. These final tubes were RCA tubes, and suspiciously clean externally. Then installed the dusty Sylvania tubes, with "35" written on the outside of each from the T-4XB into the T-4X, whereupon the T-4X plate current dipped and could load the transmitter on all bands. The neutralization seems on-the-money as well. So, now the T-4X works perfectly, the T-4XB is "sick". I await receipt of two "NOS" 6JB6 tubes to see how well they will work in the T-4XB, am not sure what brand they will be. Wish knew a source for "known good" 6JB6 tubes, would buy a few for spares. 73, Curt _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
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