Remember, your amp is newer than the newest component.For example, if you find pots from late ‘64 and transformers from early ’65, you can be pretty sure your amp is a 1965.The following chart, was originally printed in VG magazine, by Gerald Weber.If you see any data that is not listed here or notice any errors, for 1970’s and earlier Fender amps, please send us an email and we will update the chart.Yes of course some have the mid knob and bright switch while others don’t.All these ab763 amps with reverb has the gain stage in the reverb recovery circuit which the non-reverb amps don’t have.
A – 1951 A – January B – 1952 B – February C – 1953 C – March D – 1954 D – April E – 1955 E – May F – 1956 F – June G – 1957 G – July H – 1958 H – August I – 1959 I – September J – 1960 J – October K – 1961 K – November L – 1962 L – December M – 1963 N – 1964 O – 1965 P – 1966 Q – 1967 Another way to get a close estimate of when your amp was made is to read the codes on the transformers.
Summary The Bandmaster came with many different circuits during the blackface and silverface eras.
The blackface head had a diode recifier, one normal channel and a vibrato channel with no reverb.
His particular area of expertise is in Fender amps made from about 1960 through 1967.
Devin runs Doc's Music in Springfield, Missouri and his interest lies in the woodie and tweed Fender amps made from 1946 through 1960.