4 GE 12ca5 tubes.The tubes is new old stock in original boxes.Made in USA.Tested on a Sencore TC162 Test results were 100 on all four tubes.Zero to 50 is bad,50 to 70 is questionable, 70 to 120 is good 60 day Guarantee
4 GE 12ca5 tubes.The tubes is new old stock in original boxes.Made in USA.Tested on a Sencore TC162 Test results were 100 on all four tubes.Zero to 50 is bad,50 to 70 is questionable, 70 to 120 is good 60 day Guarantee