One of the most popular vintage tubes the Siemens 6DJ8/ECC88 are exactly the same tube and often have both number types imprinted as they are on these tubes.Matched quad manufactured in Germany in the mid sixties.No glass discoloration,clean steel pins,most print intact.Test results:
#1 90/80
#2 90/85
#3 90/80
#4 89/89
whereas minimum is 62.
Offered at $125 for the quad shipping and insurance included.Will accept certified check,US Post MO or paypal +4%
