Home > Shop by Amp > Marshall Amps > JCM900 (EL34 Versions) > JCM900 (EL34 Version) - Premium Package Tube upgrade package includes... 2 pairs (Matched quartet) - Winged "C" (SED) EL34$59.95Price is for a: matched pair 3 - Sovtek 12AX7-LPS Vacuum Tube$13.95Additional Options: NoneMatched Sections (+5.00) Total package cost: $161.75 Top of Page The easiest way to buy vacuum tubes. How to Order - Email Us - Links - Privacy Policy Copyright © 1999 - 2010 The Tube Store Inc. All rights reserved.