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ronbryan · 16th May 2019, 11:35 am

The manufacturer is Dubilier. I have a similar boxed pot and the box says Dubilier Control, British Made.

My 50k ohm pot has Q/B printed on it and the box says it is a Q type pot with a log law. The spindle is brass, so the /B could be for log law or even /B for brass. As yours is a /A, do you know if it is linear taper (by measuring resistance with angle of rotation)?

My pot does not have any numbers that could be directly interpreted as a data code, although it does have 9J printed on it. There are other permutations, such as shaft length or shaft flat type or flat length and it is not obvious how these were encoded if, at all.

Ron

16th May 2019, 11:35 am	#2
ronbryan Octode Join Date: Jan 2003 Location: Guildford, Surrey, UK. Posts: 1,960	Re: Help with pot codes The manufacturer is Dubilier. I have a similar boxed pot and the box says Dubilier Control, British Made. My 50k ohm pot has Q/B printed on it and the box says it is a Q type pot with a log law. The spindle is brass, so the /B could be for log law or even /B for brass. As yours is a /A, do you know if it is linear taper (by measuring resistance with angle of rotation)? My pot does not have any numbers that could be directly interpreted as a data code, although it does have 9J printed on it. There are other permutations, such as shaft length or shaft flat type or flat length and it is not obvious how these were encoded if, at all. Ron Last edited by ronbryan; 16th May 2019 at 11:44 am.