As a general rule of thumb, serial numbers can be used to denote a year range for a particular guitar. As a broad generality V000001-V004000 denote a 1982 guitar, V004000-V010000 denote a 1983 guitar, and V010000-V016000 denotes a 1984 guitar.
A few popular books state that the serial numbers re-started with V0000001 when the new Corona, Ca factory opened. If you look at my fullerton inventory, you can see that this is just a broad generality.
250K Pots will send more high frequencies to ground, making the pot sound a tad darker.
This is pleasing to the ear – we don’t want muddy sounding humbuckers, and we don’t want piercing single coil pickups, so, our pots help compensate and shape the tone right from the get-go.
(See below for comparing 250K and 500K pots.) For instance, if you have a 250K pot, the entire resistance of the pot itself is 250K, however, by using the “sweeper”, you can choose any value from 0 – 250K.
Each American Reissue Stratocaster that left the factory had one of these V serial numbers stamped into the neckplate.I have come across many guitars with a serial number in the V012000's with a 1982 neckdate.I have also come across guitars with a V012000 serial number with a 1986 neckdate.If you have Metal knobs with a set screw, those require Solid Shaft pots.For Metal knobs, you have to tighten the set screw onto the post.