This Mullard EL34 XF2 pair of tubes are rare UK government/medical grade CV1741 stress tested for 'official' use. Fully tested in digital Maxi-Matcher tester/matcher at 400V. Readings are 23.1, and 26.4mA. Transconductance 4.8 and 4.87 respectively... very strong transconductance readings! Pins are very clean and flashing looks great suggesting these have not seen much if any use but please note broken guide pin on one. Dual halos, these are early XF2! Try them in your vintage Vox, Marshall for more balanced extended lows/highs and growl! IMPORTANT: Be aware that most if not all power tubes just 'tested & matched' on traditional 50's testers like Eico, Hickok etc are prone to false results as they don't run power tubes at full operating voltages... the Maxi-Matcher does!Guaranteed for 3 days/return. International shipping extra depending on location.

Please look at pics closely before asking questions but feel free to do so... also available on my Gbase site so sale may end early. 310-893-0617

My items are well packed and ship FedEx Ground domestically with tracking forwarded. International via USPS costs vary according to location, service, insurance etc. Please be aware: All foreign customs duties associated with items are the sole responsibility of the buyer. All items are described to the best of my ability and vintage gear/tubes etc carry no warranty due to age and are sold as-is with no returns. 0 or low feedback bidders MUST contact me PRIOR to placing a bid or they risk having their bids blocked and removed permanently. Payment in full due within 3 days of auction end. Thanks for looking and a special thanks to all my previous buyers... you're always welcome back!