The NOS Winged C (SED) EL34/6CA7 tubes offer fantastic performance when driven to overload conditions. They provide ample clean headroom with a smooth transition into breakup. Expect from these tubes sweet harmonic content, a nice shimmering top end with smooth mids and a rich, focused low end. Made by SED (Svetlana Electron Distributors), the original “Svetlana”, in St. Petersburg, Russia, these tubes are no longer in production. They are sold in matched pairs. Supplies are limited and all orders are subject to final availability.
The NOS Winged C (SED) EL34/6CA7 tubes are an exceptional upgrade for our Triple Crown TC-100 or TC-50, or any of our amps with EL-34 Bias Switches. Using these tubes is a fantastic way to explore new tonal possibilities.impart additional vintage flavor and flare with your amp.
We test and match our tubes while under the stress of actual operating conditions, to the tightest, most demanding specifications in the industry with our proprietary aerospace-designed tube analysis system called Robotube. Only the absolute FINEST tubes are excepted. And then, as evidence, are backed with the best warranty in the business for a minimum of six months! Testing and Matching capacity is where confidence and true value come in. In the case of any MESA tube, you can install with complete confidence of guaranteed premium performance from the world’s leading designer of custom, hand-wired amplifiers.
Please note: It isn't uncommon for a grid leakage indication to appear when testing EL34s in certain tube testers. This does not indicate a failed condition for a guitar amplifier. Not all tube testers test for parameters relevant to a tube guitar amplifier.