I bought my Peach Preamp a few years ago and am just now learning about tubes in general. (The model number inside the preamp is #50813 Rev C)
Exactly what tubes were designed to be used in this preamp?
Installed inside the preamp now are 1- 12X4 and 3- 6dj8 tubes. Is it OK to go with a tube with a different number or letter? Until I figure what's supposed to be in there I will continue to use whats in there or I will just replace with just the same numbers and letters.
Any tips would be greatly appreciated, I know someone here knows about this particular preamp, right? Thank you for your time,