Knobs!

[tallowwaters]

How do you find out the part number of a friggin knob?

To the point - anybody know where I can find Lexicon LXP knobs? I don't know that I've ever spotted similar on other gear.

[nathanscribe]

Service manuals usually have part numbers for the manufacturer's stock, which may or may not be their own doing. I just get lookalikes from component suppliers. Here in the UK I use Rapid, Farnell, RS, ESR and Maplin, so whatever the US equivalent is. They'll have a few web pages dedicated to knobs. Ahem.

On a more technical level, look for shaft diameter, whether it's splined, serrated (and how many), length, and whether it's grub-screw fixed or push-on.

There's also a noticeable difference between 6mm and 6.35mm (ie, 1/4") - you need the right one. A 6mm knob will generally not push on to a 6.35mm shaft. A 6.35mm grubscrew knob will fix to a 6mm shaft but you'll get cammed rotation.

Could you post a pic of the inside of the knob and the shaft it goes on?

How close are these?

[tallowwaters]

Your link was on the money, sir.

I tried browsing a few parts places, but it was a pretty daunting task. They almost had more knobs than this forum.

[nathanscribe]

Excellent. Those knobs are made by Re'an and should be widely available if you use their own part code. Any trouble, drop me a line.