Various 5670/2C51

The US-made 5670 is an excellent tube to try if you have a tube amp that uses 6N3P and looking to do some tube rolling.

5670 tube is a direct replacement and a good upgrade from stock OEM Chinese 6N3P. The 5670 tubes are rugged and quiet as they were built for industrial and military applications. 5670 works great in line and phono stages.

We have American-made 5670 tubes of various brands in stock. and we have bulk stock. The tubes will come in white boxes. If you want to try an authentic US-made replacement for your 6N3P tube, 5670 is the one to try.