For sale is a lot of seven 6DQ5 Electronic Tubes. I looked at them and thought that they might be used. I am not an electronics specialist and would not know for sure. I DO NOT GUARANTEE THEIR CONDITION. I got them from a cabinet full of new and used EDM supplies. If you do not like them, just say so, render them inoperable, shoot me a picture of that and I will refund your purchse price (but NOT shipping).