Matched quad - These were used for a quick tone test on an old Marshall. 1 has a red sharpie mark on the top.
Tube Amp Dr in Germany does the primary QC. CALIFORNIA PROPOSITION 65 WARNING.
NessTone 5U4G. Excellent tone and build quality. Equivalent to the 5Z3PA 5U4GB, 5U4, 5C3S, 5AS4A, 5Ц3C, CV1863, and GZ31. Tested on the RoeTest professional computer testing system. Quickest shipping from NessTone Tube Sales
This is a new item in its original packaging. Please view pictures provided for additional detail and to determine the condition of this item. Please feel free to ask any questions and I will answer them asap
NessTone EL84 / 6BQ5 Hand Selected Power Pentode. They are exceptionally sturdy. Matched sets are matched by plate current and transconductance using the new Maxi Matcher 2. Tested on the RoeTest professional computer testing system.