Part number reference thread for Selco knobs

sempervirent · Post by **sempervirent** » Thu Mar 20, 2014 1:02 am

I've answered this question many times via PM/email so I wanted to just make a thread about it.

If you want to get a cohesive knob style in your system, the Selco "conventional push-on knobs" (found on Intellijel, Buchla 200e, and other modules) are a good option because they are available for D-shaft, spline shaft, and round shaft potentiometers.

They can be ordered through selcoproducts.com with a $50 minimum order. Check the Selco catalog for full details.

The big knobs (cf. Dixie II coarse tuning knob), 15mm diameter:
DCN 150 006 Black: 6mm D-shaft, skirted
DC 150 006 Black: 6mm D-shaft
TPN 150 006 Black: 6mm spline shaft, skirted
TP 150 006 Black: 6mm spline shaft

The small knobs (cf. Dixie II fine tuning knob), 11mm diameter:
DRN 110 006 Black: 6mm D-shaft, skirted
DR 110 006 Black: 6mm D-shaft
TPN 110 006 Black: 6mm spline shaft, skirted
TP 110 006 Black: 6mm spline shaft

There is a variant of these knobs that will fit 1/4" round shaft potentiometers, but I haven't tried that yet. I think it requires a special tool. I remember that exper was checking into it, maybe he will have something to add.

The removable knob cap is a separate part number:
C151: cap with a line pointer, fits 15mm diameter knobs
C111: cap with a line pointer, fits 11mm diameter knobs

The cap comes in different colors, check page 10 of the catalog for color options and note the syntax that they prefer to get for specifying colors (i.e. C151 Gray 6). You can get caps with a line, a dot, or no orientation marking (for rotary encoders like the Data knob on the Metropolis). Caps with a dot or no orientation marking have a different part number. Again, check the catalog.

If you are outside of the US, the part numbers are the same for Sifam in the UK. However I do not know if Sifam sells directly to the public.

This has been a public service announcement from Grayscale. Thank you and good night.

z3r01 · Post by **z3r01** » Thu Mar 20, 2014 1:32 am

Great info, and thanks for taking the time to post this, sempervirent!

adolfgottmann · Post by **adolfgottmann** » Thu Mar 20, 2014 4:11 am

Unfortunately Sifam sells packs of a thousand pieces each

neil.johnson · Post by **neil.johnson** » Thu Mar 20, 2014 4:53 am

Sifam will sell to the general public, but their minimum quantities are rather high. That said, if you're buying in quantity, by the time you get to a hundred or so it works out about the same to buy direct in the larger quantity than it does to buy what you need from a distributor.

For a more friendly UK manufacturer with lower minimums try Cliff.

Neil

theewiper · Post by **theewiper** » Thu Mar 20, 2014 9:42 am

Thanks again!

analogue01 · Post by **analogue01** » Thu Mar 20, 2014 1:17 pm

Thanks for this! I've been thinking of Selco-ing for a while now.

sempervirent · Post by **sempervirent** » Thu Mar 20, 2014 1:41 pm

Yeah, I didn't swap out everything, just a few modules, and it was good to find some knobs that worked with both shaft types. I went with gray for parameters and black for attenuators. Here's my Piston Honda (spline) and MMG (D-shaft).

Jason Brock · Post by **Jason Brock** » Thu Mar 20, 2014 2:50 pm

sempervirent wrote:I've answered this question many times via PM/email so I wanted to just make a thread about it.

I was just about to pm you yesterday with this question, then I got busy with other things.
Many thanks for taking the time and effort to put this info together!

analogue01 · Post by **analogue01** » Thu Mar 20, 2014 2:59 pm

Looks fantastic!

Just a few quick questions:

1. Just to confirm: The knobs that Intellijel uses (on your MMG in the photo) are the ones with the integrated nut cover, DRN 110 006, and the knobs you've got on the Piston Honda are the ones without the nut cover, DR110 006?

2. I've read elsewhere the minimum order is $50. Roughly, how many knobs/caps is that?

sempervirent · Post by **sempervirent** » Thu Mar 20, 2014 3:39 pm

Jason Brock, yeah, I answered two PMs about this yesterday, so I figured it was time to just make a thread. Glad it's helpful.

analogue01, right, the knobs on that PH don't have a nut cover. The N in the part number indicates the nut cover. But the D in the part number indicates D-shaft, and T indicates spline. The PH has spline shaft pots. So it's not actually DR 110 006 for the 11mm spline knob without the nut cover, it's TP 110 006. And it's not TPN 150 006 for the 15mm knob without the nut cover, it's TP 150 006. But for D-shaft knobs without the nut cover, you're right that the part numbers would be DR 110 006 for 11mm and DC 150 006 for 15mm.

Just updated the first post with these part numbers too.

One thing to watch out for is that the knobs with the nut cover are taller. The knobs without the nut cover wouldn't fit on certain modules (such as older Make Noise modules with spline shaft pots) because the cavity inside the knob was too shallow.

The prices vary but I think you end up paying about $1.50 per knob, including cap, so you'll get around 30-35 knobs for $50.

analogue01 · Post by **analogue01** » Thu Mar 20, 2014 4:13 pm

Thanks! All those part numbers make sense. And good to know about the tallness of the different knobs.

sempervirent wrote:Jason Brock, yeah, I answered two PMs about this yesterday, so I figured it was time to just make a thread. Glad it's helpful.

analogue01, right, the knobs on that PH don't have a nut cover. The N in the part number indicates the nut cover. But the D in the part number indicates D-shaft, and T indicates spline. The PH has spline shaft pots. So it's not actually DR 110 006 for the 11mm spline knob without the nut cover, it's TP 110 006. And it's not TPN 150 006 for the 15mm knob without the nut cover, it's TP 150 006. But for D-shaft knobs without the nut cover, you're right that the part numbers would be DR 110 006 for 11mm and DC 150 006 for 15mm.

Just updated the first post with these part numbers too.

One thing to watch out for is that the knobs with the nut cover are taller. The knobs without the nut cover wouldn't fit on certain modules (such as older Make Noise modules with spline shaft pots) because the cavity inside the knob was too shallow.

The prices vary but I think you end up paying about $1.50 per knob, including cap, so you'll get around 30-35 knobs for $50.

clusterchord · Post by **clusterchord** » Fri Dec 26, 2014 9:49 pm

thank you for this valuable info,

i am looking to order some splined for my Doepfers, AM Synth and Oakleys, plus some D-shafts for Intellijel mk1 and MN stuff.

sempervirent wrote:One thing to watch out for is that the knobs with the nut cover are taller. The knobs without the nut cover wouldn't fit on certain modules (such as older Make Noise modules with spline shaft pots) because the cavity inside the knob was too shallow..

both versions look great, but i really like the one without the nut, that you have put on your PH1. somehow sexier without the ring on the bottom.

i removed a knob from my HD1 and from a Doepfer module. Harvestman is short, but Doepfer has pot bolted on the panel, so little higher - do you think it might work with the nut-less version ? have you ever tried the Selcos on a Doepfer, by any chance ?

thanks

sempervirent · Post by **sempervirent** » Wed Dec 31, 2014 12:19 am

clusterchord wrote:have you ever tried the Selcos on a Doepfer, by any chance?

Just tried it, either type will fit (with or without nut cover).

clusterchord · Post by **clusterchord** » Wed Dec 31, 2014 1:48 am

that's great!!.. thanks a lot for checking it out

whoa nut-less black or grey top on my Doepfers and AM Synths, sexiness factor will go thru the roof

i had a plan with Rogans, but the group buy on diy forum is draggin on forever.

losing faith it will ever materialize.. will give it a few more weeks and then i'm moving on to Selcos. life's too short.

sempervirent · Post by **sempervirent** » Wed Dec 31, 2014 12:17 pm

Meaning the Buchla-style Rogans? Here's a Doepfer module with a different Rogan knob (PT series used by MN/Harvestman/Mutable):

clusterchord · Post by **clusterchord** » Thu Jan 01, 2015 4:30 am

sempervirent wrote:Meaning the Buchla-style Rogans? Here's a Doepfer module with a different Rogan knob (PT series used by MN/Harvestman/Mutable):]

wow looks really nice, and a perfect fit. it drags the old Doepfer to 21ct. is that the knob you mentioned you'll be ordering soon, on your mega-thread ? T18 or D-shaft ?

damn, so many wonderful options.

yes the group buy thread is for vintage type Buchla 200 Rogans, red and blue, different sizes. i have several euro clones/DIY, like 258J, 292c and 266R that i'd like to convert to that look. for example:

L.C.O. · Post by **L.C.O.** » Fri Jan 30, 2015 2:48 pm

So, approximately $1.50 per knob.

How much of it is the knob,
and hom much a cap?

Apologies for annoying questions! ;-)

sempervirent · Post by **sempervirent** » Fri Jan 30, 2015 3:01 pm

The caps are about $0.50 each, the knobs are about $0.75 for the smaller ones and about $1.00 for the larger ones. Prices might have changed since I ordered but I don't think they will be much different.

L.C.O. · Post by **L.C.O.** » Fri Jan 30, 2015 3:17 pm

sempervirent wrote:The caps are about $0.50 each, the knobs are about $0.75 for the smaller ones and about $1.00 for the larger ones. Prices might have changed since I ordered but I don't think they will be much different.

Fantastic!
Thank you.
i am ready to make an order :-)

sempervirent · Post by **sempervirent** » Fri Jan 30, 2015 3:19 pm

PM exper, he's always looking for some

L.C.O. · Post by **L.C.O.** » Tue Feb 03, 2015 2:24 pm

What about just plain 6mm shafts, like the one used by Pittsburgh Modular?
The spline shaft knobs don't seem to fit on those.

Would the "slotted" shaft that is listed in the Selco catalogue as the only other option fit the plain shafts?

sempervirent · Post by **sempervirent** » Tue Feb 03, 2015 4:21 pm

You can get the same knobs to fit a 1/4" shaft, those are the "collet" knobs and they need a special tool for tensioning the collet onto the shaft. I haven't ordered those before but post back if you give it a try because I'm curious to see how it works.

wut · Post by **wut** » Wed Feb 04, 2015 1:30 am

For smooth shaft/0.25" pots you can use the collet version of the selco knobs, however, the available sizes may differ. Iirc, the smaller ones (11mm skirt, like the dixie ii finetune knob) are not available in collet version but the larger ones (16mm skirt, dixie ii coarse knob) are.

sempervirent · Post by **sempervirent** » Wed Feb 04, 2015 10:16 am

Good point, some of the smaller knobs are too small to accommodate the internal core for the collet.

bezier · Post by **bezier** » Sat Jul 04, 2015 3:08 am

sempervirent wrote:You can get the same knobs to fit a 1/4" shaft, those are the "collet" knobs and they need a special tool for tensioning the collet onto the shaft. I haven't ordered those before but post back if you give it a try because I'm curious to see how it works.

Has anyone tried these collet knobs? How do they work?

MUFF WIGGLER

MUFF WIGGLER

Part number reference thread for Selco knobs

Part number reference thread for Selco knobs

Re: Part number reference thread for Selco knobs