Replacement Pots For The Russian BMP

[smallbearelec]

I sometimes get requests for the 1/8" shaft Russian pots, which have not been readily available for a long time. There is a CTS pot, available from Digikey, that can be tooled fairly easily to work with the existing knob. I don't know if this work-around is already well-known and I just was not aware of it. See the pic that one of my customers took.

https://cdn6.bigcommerce.com/s-sxoup5r/products/3762/images/6147/Russian_BMP_Pot__93201.1523243561.1280.1280.jpg?c=2&_ga=2.200521645.2079447656.1523242537-937935124.1493050497

I will have parts posted to sell in about a week. Now ask me about getting the knob cloned; yeah, I will look into getting a mold made.

[spindlebox]

That was such an easy project to do, if anyone has any questions, I'm the one that did it, and you can reach me through here. 

[thermionix]

Ivan has the Russian EHX style knobs, but for 6mm shaft pots.

[vigilante397]

I glanced briefly at the title and thought it said "Replacement Bots For The Russians" and was a little confused.

[zombiwoof]

Is there any chance you could order similar pots from CTS with the D-shaft as an option?.  Just wondering, some companies have versions with different shafts available.
Al

I sometimes get requests for the 1/8" shaft Russian pots, which have not been readily available for a long time. There is a CTS pot, available from Digikey, that can be tooled fairly easily to work with the existing knob. I don't know if this work-around is already well-known and I just was not aware of it. See the pic that one of my customers took.

https://cdn6.bigcommerce.com/s-sxoup5r/products/3762/images/6147/Russian_BMP_Pot__93201.1523243561.1280.1280.jpg?c=2&_ga=2.200521645.2079447656.1523242537-937935124.1493050497

I will have parts posted to sell in about a week. Now ask me about getting the knob cloned; yeah, I will look into getting a mold made.

[smallbearelec]

order similar pots from CTS with the D-shaft as an option?

Probably could be done, yes. The problem for me is that their minimum order quantity for made-to-order styles is at least 2,000 pieces. For this repair part, I think the off-the-shelf choice is better

[thermionix]

I glanced briefly at the title and thought it said "Replacement Bots For The Russians" and was a little confused.

To add to the confusion a little, there is more than one kind of Russian BMP...

https://en.wikipedia.org/wiki/BMP-1

[vigilante397]

To add to the confusion a little, there is more than one kind of Russian BMP...

Ha! Brilliant

[thermionix]

I haven't seen a schematic, but the tone is noticeably different.

[vigilante397]

Looks like they're from the 60's, may even still be tube powered