Dating gibson pots
In either case, the code works the same. Gibson used some pots with strange codes.
And remember, even the dates indicated by the pots aren't that exact. Can you see why? If you've been reading articles about dating a vintage guitar, you may well have come across mention of pot codes. Many also put a country of production. On 3 digit date codes, you have to "guess" the decade of the pot or speaker.
Community Forum Software by IP. The remaining 3 or 4 digits are the date code. The EIA can be contacted via mail: The prefix code letter identifies the type of magnet used in the speaker. Prior to the s, Field or ElectroMagnetic magnets were used. The first 3 digits on a pot, or the first 2, 3 or 4 digits on a speaker are the source or manufacturer code.
Skin and Language
Other Speaker Manufacturers thanks to P. In this case, the speaker is made by Rola in the 9th week of But where does that leave everyone else? I'm not familiar with a six-digit pot code, nor one with the prefix "R". AlNiCo was the mainstay for decades because it produced a strong magnet which worked great in speakers.
This is an invaluable tool for dating vintage Gibson Instruments. Reply to Ron Watkins's comment. Jensen speakers came in varying quality levels. Then in roughly earlythey changed to CTS pots.
Pots in an older guitar may have been replaced, and this should be considered, especially if the date suggested does not fit with other features of the guitar.
I thought the first two numbers signified the week and the last number the year. The closer the suffix code letter is to "A", the higher the quality of speaker. My discovery was the result of musical perception.
So guitars and amps made as late as can still have date codes from this huge stocking. This is a brief outline of the various pots and caps and wiring used by Gibson.
These appear on the underside of the pot. Again they have little information.
How the Source-Date Code Works. For the dating gibson pots guitar tone, it is generally agreed "permanenent" Alnico V was the magnet of choice.
Many Vox guitars were made by Eko in Italy, and these used Italian pots. With this in mind, remember if the last two digits of the source-date code are greater than 52, you're not looking at the source-date dating gibson pots Better quality pots are often stamped with a number of codes; typically part numbers, date of production, manufacturers codes and resistance values. That said, it's not uncommon for pot manufacturers to post date pots anywhere from a few weeks to as much as 18 months.
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