5R4 can replace 5U4 5AR4 5Z3P. US RCA 5R4GY match pair TUBES IN ORIGINAL BOX. Square Getter. Smooth Plate. Suitable for speaker, amplifier,CD player etc. Brown Base. Give you a reasonable solution. I hope we can have a good deal.
5R4 can replace 5U4 5AR4 5Z3P. US RCA 5R4GY match pair TUBES IN ORIGINAL BOX. Square Getter. Smooth Plate. Suitable for speaker, amplifier,CD player etc. Brown Base. Give you a reasonable solution. I hope we can have a good deal.