The American Standard was introduced in ‘86. They were virtually unchanged at all until 1995, when Fender advertised the American Standard line as “updated”, and claimed they went back to the original 50’s body carves and radii. I can tell a huge difference in the Strats. Never could tell the difference on a Tele. One notable feature is that all American Standard Strats were wired correctly, not the stupid vintage way. The top tone control operates on the neck and middle pickup, the bottom tone control (TBX) operates on the bridge pickup.
1995 also saw the return of the “spaghetti” logo decals, and saw the serial number move to the back of the headstock. These guitars all sported the original Am Std pickups and TBX tone controls. Many people ditched the TBX because they didn’t understand what it was or how it works. IMO it’s a brilliant addition to these guitars and I would never dream of pulling one out. I recently got a new guitar that has one and I flat out love it. Likewise, I dig the Am Std pickups. To me they’re some of the best sounding Strat and Tele pickups ever made. No, they don’t sound like the 50’s, but they sound really, really good. To me, looking at any used American Standard from the ‘86-‘96 era, these are must have features. If the pickups have been changed and the TBX is missing, I’m gonna want a HUGE amount deducted from the price before I even think about buying it.
Also during this era, the bodies were veneered. It helped out especially to make sunburst look like a 1-2 piece body even though they could be as many as 3-5. Some people claim only the bursts were veneered, but when I was at the factory in the 90’s they stated that they all were, in order to help negate the finishes sinking into the grain, and maintaining a totally flat and perfect appearance.
Next change came in 1997, with the introduction of the Deltatone circuit. All this really did was remove the TBX control in favor of a “no load” tone control. From 1-9 it functions normally. There is a detent in the wide open setting which removes it entirely from the circuit and send the output straight from the volume knob to the jack. Fender claims the pickups were the same, but they didn’t sound the same to me. Not bad, just different. I’ve always blamed the tone control switch-out for the difference.
Late ‘99/early ‘00, the American Standard became the American Series.
Standard “upgrades” were rolled fingerboard edges, better nut work, parchment instead of white plastics, and staggered tuners. The Delta Tone circuit stayed. They stopped veneering the bodies. These were made until some time around 2005 or 6, maybe? They definitely went through ‘04.
After that I stopped keeping track because honestly they kind of went to hell IMO.
I’m a huge American Standard/American Series fan. IMO they were the absolute most consistently high quality guitars Fender has ever mass produced, in any era.