Up for sale is a matched pair (2 Pcs) of vintage NOS Ferranti 6J5G audio triode valves, complete in clean white boxes. Made in England, these rare British-made 6J5G tubes feature signature black plate construction, a bottom side D getter, and a sleek black base. Highly sought after by audiophiles for custom single-ended preamplifiers and driver stages due to their smooth musicality, excellent detail retrieval, and classic British tone.

Both tubes have been thoroughly tested on an Amplitrex AT1000 automated valve tester at standard reference settings. Plate Current (Ip) and Transconductance (uMhos) measurements alongside percentage performance ratings relative to standard factory specifications are detailed in the table below.