Ran across this rather lovely Guild B50NT (1977, according to the SN) with what appears to be a well installed aftermarket pre-amp and pickup. Only problem is, I can't figure out who made the preamp or pickup. Not too concerned about the pickup because it sounds so good but I'd kind of like to know a bit more about the pre-amp. No identification visible on the control housing or the battery holder.
Anyone care to take a guess based on appearance? Thanks in advance for any assistance!
Anyone care to take a guess based on appearance? Thanks in advance for any assistance!
