Introduction. For most collectors, pre-CBS (pre-1966) Fender vintage guitars and amps are the desirable ones. Although CBS purchased Fender (officially) on January 3rd 1965, it took some time till the guitars changed (though by mid 1964, six months before CBS bought Fender, things were already "on the way down"). Recently Tsar modified a guitar for the Armenian-American rock band System Of A Down’s (SOAD. In the comments section I wrote…