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I had one cracked knob on a 2465, so I pulled another to be able to use that pot, and the pulled one lost most of its spring clip that keeps it on the shaft of the pot.

What methods are known to work well for using knobs like in my photo that have lost some of their spring clip parts?

Does epoxy putty help a knob stay on? Does epoxy putty work too well and never come off?

Hi John,

Are you sure they are pushed all the way on?

-Evan

On Thu, Feb 13, 2025 at 11:54?PM John Griessen via groups.io
<john@...> wrote:

I had one cracked knob on a 2465, so I pulled another to be able to use that pot, and the pulled one lost most of its spring clip
that keeps it on the shaft of the pot.

What methods are known to work well for using knobs like in my photo that have lost some of their spring clip parts?

Does epoxy putty help a knob stay on? Does epoxy putty work too well and never come off?

Personally I recommend ultra low melt temp hot glue. It works well to stick it on, but if you need to remove it you can use a heat gun on low setting to warm up the knob and soften the adhesive to remove it.

It can be a little messy and perhaps too "permanent" for some people.

Benjamin

Less permanently RTV-748 is electrical grade and soft enough that you
can pry it off if need be but still thick enough to prevent air from
flowing so you get a suction cup with a thin film of it.

On Thu, Feb 13, 2025 at 11:54?PM John Griessen via groups.io
<john@...> wrote:

I had one cracked knob on a 2465, so I pulled another to be able to use that pot, and the pulled one lost most of its spring clip
that keeps it on the shaft of the pot.

What methods are known to work well for using knobs like in my photo that have lost some of their spring clip parts?

Does epoxy putty help a knob stay on? Does epoxy putty work too well and never come off?

On Thu, Feb 13, 2025 at 08:54 PM, John Griessen wrote:

I had one cracked knob on a 2465, so I pulled another to be able to use that
pot, and the pulled one lost most of its spring clip
that keeps it on the shaft of the pot.

What methods are known to work well for using knobs like in my photo that have
lost some of their spring clip parts?

Hot glue worked well for the repair I did. In case they got damaged while trying to remove the bezel: you don't need to pull out the knobs, they slide off with the bezel. See the link below for pictures.

/g/TekScopes/album?id=259435

Ozan

On 2/13/25 22:14, Ozan wrote:

Hot glue worked well for the repair I did. In case they got damaged while trying to remove the bezel: you don't need to pull out the knobs, they slide off with the bezel.

Thanks for the suggestions. Since parts of what hold the knobs are now gone, I'm going to try hot glue.
If it is wobbly afterwards, I can reheat and try centering again until good. Good to know about the bezel -- these knobs never need to come off unless damaged.

I just got some of these 3D printed in nylon from China.
They are white but fit well and were cheap (6 for $8 including shipping (for some reason I got a $5.33 discount))
Michael