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
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