Up for sale is a single (1 PC) vintage NOS GE (General Electric) 5Y3GT full-wave vacuum rectifier tube, packaged in a white box. Featuring classic long black plates, a sturdy black base, and a vintage bottom square getter, this USA-made 5Y3GT is widely considered one of the finest rectifier choices for vintage guitar amplifiers (such as Tweed Fender Champ, Deluxe, and Princeton amps) as well as classic Hi-Fi power supplies. Renowned for its reliable power delivery, ideal sag characteristics, and long-term operating stability.

As shown on the box label, this tube has been thoroughly tested on an advanced Amplitrex AT1000 tube tester. Forward voltage drop (FWD) and reverse breakdown voltage (REV) metrics for both internal diode sections are detailed in the table below.