Dating blackface amps
The boss came around and said what we'd be building. Probably the same as the pots and transformers that we just dug out of the boxes.I think in the corners of the boxes were older pots remaining from earlier dates... Like I said, there were 5 or 6 of us at the benches every day.Silly me , I just published a link on how to date your Fender amp and I just went and dated y Deluxe Reverb ! It sounds great and so I have decided not to mess with what was a factory Mistake/ Change/ Customisation? This one is an odd amplifier because when I decided to start on the restoraton, I noted that the circuitry was not pure Silverface but a blend of Blackface and Silverface.Non-Schumacher transformers – It’s been universally accepted that Fender only used Schumacher transformers on amps made in the 1960s and 1970s.
Oddlings – Yet another printing error has surfaced, this time from the FEI (pre-CBS) days.Well, this universal “truth” was debunked when we found a bunch of amps with transformers made by the Better Coil and Transformers company.These are marked with EIA code “831” and are most prevalent during the 1966-68 time period.Note the removal of the voltage selector switch and hard-wiring. I just discovered that the silverface Bandmaster speaker cabinet (the big, tall one without tilt-back legs) is ported (see photo). I guess this is what the 1969 catalog refers to as “large, individual specially designed baffles.” And all along I thought the big n’ tall silverface cabs were just a macho thing to compete against the awesome looks of a Marshall half stack or full stack.Also note the vertical black lines on the control panel (found on earliest silverface amps) and the large ceramic power resistors coming off the power tube sockets which indicates the AB568 circuit. But really, these cabs were large because they were of a “special design” that “greatly improves tone and volume without distortion, and permits optimum performance of the speakers.” At least that’s the reason according to the ’69 catalog.