Can any one ID these old vintage pots?

[pbman1953]

HI All.
I have 3 vintage pots that may have come out of some old guitars or amps-

23-6504     / 23-5943-   1965 era- 4th week- 500k

304-6923   /23-6504-  1969 , 23rd week-  no value mentioned

304-6914     /23-1598-  1969, 14th week-  no value mentioned

Besides the 500k can anyone ID the others?


Also, would you know if they have any value? For the ones with no value shown, would you know what they were used in?


Thanks!

[AlNewman]

Well, you can measure the values across outside legs to find resistance, and also test resistance through the sweep to find out if they are audio or linear, etc.

If they are long shaft, or short shaft, smooth or knurled, may help determine what application they were used in.

Long story short, they're probably worth nothing more than a good replacement in the spare parts bin.

[bmccowan]

https://www.pbs.org/wgbh/roadshow/

[uki]

hi-rez pics are very useful to help in those cases

[pbman1953]

Here you go

[Latole]

Well, you can measure the values across outside legs to find resistance, and also test resistance through the sweep to find out if they are audio or linear, etc.

If they are long shaft, or short shaft, smooth or knurled, may help determine what application they were used in.

Long story short, they're probably worth nothing more than a good replacement in the spare parts bin.

Value in $$$ ?

[SEL49]

304 = Stackpole

[acheld]

Would Jay Codie's EIA code spreadsheet help?

https://el34world.com/Forum/index.php?topic=27470.0

[pbman1953]

Well, you can measure the values across outside legs to find resistance, and also test resistance through the sweep to find out if they are audio or linear, etc.

If they are long shaft, or short shaft, smooth or knurled, may help determine what application they were used in.

Long story short, they're probably worth nothing more than a good replacement in the spare parts bin.

Value in $$$ ?

2@ 500k
1-  25k

[HotBluePlates]

23-6504     / 23-5943-   1965 era- 4th week- 500k

304-6923   /23-6504-  1969 , 23rd week-  no value mentioned
304-6914     /23-1598-  1969, 14th week-  no value mentioned

The first line is "mixing metaphors" and therefore makes a mistake.

   - The 2nd grouping of codes correctly derives the date of manufacture from the numbers beginning with "304" which is the EIA code for Stackpole.
   - The 2nd grouping of numbers also includes numbers beginning with "23-____" that appear to be some kind of part-number.

   - So the first line of numbers with "23-6504" cannot mean "4th week of 1965" as the other pots show this is a part-number of some kind.
   - Your photo of this pot shows the EIA/date code is over near the solder lugs, and is partly-obscured.  But "___6943" is visible to indicate 43rd week of 1969.

Folks have gathered together several published lists of EIA codes.  This one from 1962 shows there is no manufacturer with the EIA code "23" or "25" and so offers further proof these were part-numbers on your pots.

... would you know what they were used in?

Only the person who removed them from equipment could answer that question.