Finally there is a current production 5Y3GT tube for your vintage tube amp! JJ Electronic's 5Y3-S tube is a drop in replacement for any 5Y3 tube type. It will perform like USA made 5Y3GT tubes, keeping your vintage amp's tone authentic.
Just replaced an old RCA 5Y3 with this tube in a Fender Tweed Deluxe 5E3 amp. Sounds and feels very authentic. Solid.
By Eb from Indiana
Good Rectifier Tube
Used this tube in a 6L6 SE design and has been a good solid rectifier tube. I find the output of the tubes to average about 67% of the input. Only downfall is that they are designed for a 5V filament whereas 6.3 is a more common on power transformers.