Back in the 1960s when I worked in an electronics store as a teenager in L.A. , I remember we carried a line of Oaktron speakers. I'm wondering if anyone can shed some light on which guitar amps possibly had Oaktron guitar 10s and 12s ? I've seen pictures of Oaktron Alnicos. Anyone have experience with Oaktron musical instrument speakers? Where they used by any good amp makers?