Silver Supporting Member
I found these in my parts drawer and I'm trying to figure out what they are. After some research they seem to fit the description of RCA 7025s. Can anyone here with a trained eye confirm or deny this? The one on the left says usa 7025 ui on it and the one on the right says just usa 7025 on it but with a border drawn around around the numbers. The text is slightly different between the two but the tube construction looks identical. If these ARE RCAs do they make new ones of these or are they all vintage/NOS at this point? And what would they be worth (just out of curiosity) thanks!