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FDP Forum / The Gretsch Forum / Question about knobs for my Streamliner G2622LH

LeftyMeister

Buckeye Country, USA

Motorcycles, Guitars, and Golf
Dec 23rd, 2017 07:35 AM   Edit   Profile   Print Topic   Search Topic

I want to replace the cheap plastic knobs on my Streamliner with the metals ones. I found some on eBay for a decent price that are 6mm. I searched online but can't find the specs for my pots. I assume they're 6mm but want to be sure. Any ideas?

Streamliner G2622LH

BbendFender
Contributing Member
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American Patriot

About as ordinary as you can get.
Dec 23rd, 2017 08:59 AM   Edit   Profile   Print Topic   Search Topic

Lefty, I don't know how they might look but you might try some Tele style knobs in black metal. Might look good on your Gretch.

Peegoo
Contributing Member
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Curled up

in the fecal position
Dec 23rd, 2017 10:02 AM   Edit   Profile   Print Topic   Search Topic

LeftyMeister, if you'd like to try real-deal Gretsch knobs, send me an email. I'll send you some.

They're the same size as those Gibson-style 'speed' knobs you have on there. Chrome-plated brass with set screw. Even if they're the wrong shaft diameter (to match your Streamliner) there are ways to make 'em fit perfectly.

Like this.

(This message was last edited by Peegoo at 02:04 PM, Dec 23rd, 2017)

LeftyMeister

Buckeye Country, USA

Motorcycles, Guitars, and Golf
Dec 23rd, 2017 11:30 AM   Edit   Profile   Print Topic   Search Topic

Wow, Peegoo! That's very kind of you. I'm not sure I would use them since I'm partial to the contrast of the gold.

I pulled the knobs and I'm pretty sure they're 6mm. The posts are split knurled so I wonder if these knobs would fit...

Gold Gretsch Knobs

Peegoo
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Curled up

in the fecal position
Dec 23rd, 2017 12:03 PM   Edit   Profile   Print Topic   Search Topic

Those will fit.

The trick is adapting a set-screw knob to work with a split shaft pot.

If you crank down the little set screw against half of the split shaft, you'll bend and break off that half.

Many techs say the simple fix is to set the knob on the shaft so the set screw falls precisely on the split (in line with the split; see atch pic).

That will work, but then chances are the knobs are all cattywompus and not all pointing in the same direction when the pots are at the zero setting.

There are two ways to fix this: easy way and hard way.

The hard way is to loosen the fixing nut on each pot and rotate it in its mounting hole so that all shaft slots are oriented the same way, and snug down the nuts to hold them in place. The problem is that the wiring often prevents you from rotating some or all the pots. And if you do, you can twist wires around and create shorts in the circuit.

The easy way is to get a guitar pick that is the same thickness as the slot in the pot shaft. Use a wire snipper to cut four little rectangles from the pick. Apply a dot of white glue to the end of each rectangle and press one into the slot of each pot shaft. Wipe off any squeeze-out. Let the glue dry, and install the knobs.

The little plastic inserts you make from the pick should be the same size as the slot in the shaft; no wider and no taller. They take up the space between the split halves of the shaft and allow you to tighten the knob's set screw anywhere on the shaft with no risk of breaking it.

The trick is to use a pick (or other hard material) that's a snug slip-fit in the shaft. Too thin, and the halves of the shaft will close up a bit and the knob will be crooked. Too thick, and it forces the split apart, making fitting the knob on impossible or risking breakage of the shaft.

Not the best approach, but better than breaking off half of the shaft.

LeftyMeister

Buckeye Country, USA

Motorcycles, Guitars, and Golf
Dec 23rd, 2017 06:35 PM   Edit   Profile   Print Topic   Search Topic

Thanks! I'll give 'er a try.

Peegoo
Contributing Member
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Curled up

in the fecal position
Dec 23rd, 2017 06:55 PM   Edit   Profile   Print Topic   Search Topic

If the shafts are too small and the knob is loose and jiggly when you drop in on there, make some spacers from an aluminum drink can.

Use plain ol' scissors. Cut the top and bottom off the can, and then carefully cut a small section about 1.5" square. From that little square, cut four strips about 1/4" wide.

Take each strip and roll it up around the shaft of a small Phillips screwdriver. The idea is to end up with a little barrel that's about 1/4" in diameter and 1/4" long. Wear gloves if you have to because as you roll it up, the edges are pretty sharp and you can slice your thumb and finger.

Press the spacer over the pot shaft; it will expand a bit and slip over the shaft. Back the knob's set screw out, and push the knob onto the shaft.

The aluminum collar takes up the extra space and the knob fits snugly. Rotate the knob to set it on the shaft in the orientation you want, and snug the set screw.

If the spacer prevents the knob from going on, snip about 3/8" off the strip and try again. Removing material lessens the total thickness of the aluminum collar.

(This message was last edited by Peegoo at 09:34 PM, Dec 23rd, 2017)

FDP Forum / The Gretsch Forum / Question about knobs for my Streamliner G2622LH




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