Besides, no article in the Dating Fender Amps by Serial Number series would be complete without some interesting information, n’est ce pas?
I promise the tables will still be there after you finish reading.
Non-Schumacher transformers – It’s been universally accepted that Fender only used Schumacher transformers on amps made in the 1960s and 1970s.
These are marked with EIA code “606” which is the company number for Schumacher.
Since several models can share one chassis type (for example, the early brown 5G7 Bandmaster, 5G5 Pro and 5G12 Concert), this kind of interpretation is inaccurate.Well, this universal “truth” was debunked when we found a bunch of amps with transformers made by the Better Coil and Transformers company.Some things are very obvious such as non-original or reconed speakers, non-original transformers, replaced pots, re-tweed, re-tolex, re-grill, etc.Neither the date nor the value can be determined from the serial number.Fender’s amps, unlike their guitars, are not tracked by the serial number.