Dating vintage ampeg amps
The serial numbers from these years were duplicated in 1963, 1964, 1965, and 1965, respectively.
Taking the example Super Echo Twin above, its serial number alone could denote April 1954 or April 1964.
The Nth unit, however, may not have started with 001.
Ampeg may very well have used 100 or 101 as the starting point during slow production periods.
An Ampeg from 1960 would be covered in navy random flair vinyl whereas an amp from 1965 would be covered in blue check vinyl.
Another check for a 1960 versus a 1965 or later serial number (i.e.
The second serial number system was implemented in January 1965 and used until the end of 1969.
This information original was found on The Unofficial Ampeg Page ( which appears to be dead.
I pulled this information from Google's cache of the site.
Of course, these codes are only applicable to original components, not replacement parts.
WARNING: Ampeg amplifiers, especially the high-powered amps such as the SVT and V-series, contain lethal voltages even when unplugged and turned off.