Dating fender tube amps by serial number
For most purposes, the vacuum tube has been replaced by the much smaller and less expensive transistor, either as a discrete device or in an integrated circuit.
and Canadian English) or (thermionic) valve (outside North America) is a device generally used to amplify, or otherwise modify, a signal by controlling the movement of electrons in an evacuated space.
Stamped on the metal backing of most amps is the serial and production number. The following list, compiled by Greg Gagliano, establishes dates through 1976: A00100 to A01200 - 1964 A01200 to A04300 - 1965 A04300 to A07000 - 1966 A07000 to A10400 - 1967 A10500 to A11300 - 1967 A10500 to A16500 - 1968 A16500 to A21400 - 1969 A21400 to A25600 - 1970 A25600 to A37000 - 1971 A37000 to A50500 - 1972 A50500 to A68000 - 1973 A68000 to A99999 - 1974 A81000 to A99999 - 1975 B01000 to B15000 - 1975 B15000 to B68000 - 1976 If these steps are unsuccessful, a number of books have been published that help to date amps based on part codes.
In order to date your Fender amp I will need to know one of the below; * 2 letter date code on the Tube Chart, * 2 letter date code on the QA Sticker, or * The Trnasformer Number starting with "606-" followed by 3 or 4 additional number and insert the dash (-) marks as they separate the month from the year of manufacture.kcbuck Laugh: You didn't read the whole post now did you...
There are a large number of tube varieties and uses.
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.
Look for a 2-Letter Date Code (hand written or rubber stamped on the Tube Chart or on QA Sticker.
If not, I'll need to know the Transformer Number starting with "606-"....