|Jade amps||Jade amplifiers – an Australian manufacturer of amps since 1970.
“Started 1970. Still make amps in Melbourne. Early models had Year/Month serial stickers or printed numbers of engraved numbers.
eg. 75322 would be MARCH 1975 No.22.
Since about early 80’s we stopped using serial numbers.” [Source: Joe Bonich, Jade Amps, email 13/10/2008]