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 Post subject: Removing Difficult Knobs
PostPosted: Dec Tue 11, 2018 10:52 pm 
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Location: Atlanta, GA
I have been using what I believe is referred to as a tack & brad removing tool by ESTWING Model TM5. It reminds me of a miniature crowbar. When using it, I use a soft cloth between it and the case, working the tool around, exerting gentle, firm pressure. If you think the shaft is rusted onto the knob, put a little light oil on the shaft (between the knob and the case), face the radio down so the oil can penetrate the knob. Come back in an hour or so and remove it with the tool as described above. This works like a champ on those pesky, stuck on Zenith knobs with the easy to break sims.

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 Post subject: Re: Removing Difficult Knobs
PostPosted: Dec Wed 12, 2018 2:10 am 
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Location: Tucson, Arizona U.S.A.
Watch out on late '50s and early '60s radios. Many of those have the tuning knob retained in the cabinet. You're supposed to remove the PC board without removing the knob first.

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 Post subject: Re: Removing Difficult Knobs
PostPosted: Jan Fri 25, 2019 7:41 am 
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Location: 253 Blanche St. Plymouth, MI USA
I also keep some wood "Builders Shims" (the 6" kind come in a pack of 20 or so). Lay those against the cabinet to distribute the pressure and not break the cabinet Also, adjust the thickness to your needs for a fulcrum.
The worst knobs are the Tenite ones that shrink onto the metal shaft and bond to it like glue.
Mark Oppat


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 Post subject: Re: Removing Difficult Knobs
PostPosted: Feb Thu 28, 2019 12:38 pm 
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Two "Church Keys" work well also. Don't forget the beer, though. Just sayin'


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 Post subject: Re: Removing Difficult Knobs
PostPosted: Feb Thu 28, 2019 11:36 pm 
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Location: N. Palm Bch, Fl.
Rather hard to find any more. Remember when you bought a 6 pack and there was a little box of them on the counter for free.

Freeman


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 Post subject: Re: Removing Difficult Knobs
PostPosted: Mar Fri 01, 2019 2:11 am 
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Freeman wrote:
Rather hard to find any more. Remember when you bought a 6 pack and there was a little box of them on the counter for free.

Freeman

Free, a nickel or a dime.

Naw, not hard to find; they're all over eBay;
https://www.ebay.com/sch/i.html?_from=R ... =0&_sop=15

It's actually a novel idea, as long as the knob isn't closer to its base than the thickness of the key.

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 Post subject: Re: Removing Difficult Knobs
PostPosted: Mar Sat 02, 2019 7:01 am 
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I use a webbing strap. Cut a longitudinal slit in the strap. Think of the knob as a button and the webbing strap with the slit as the button hole. Button hole the knob and pull the strap. No scratching the cabinet or the knob.

-- Rich


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 Post subject: Re: Removing Difficult Knobs
PostPosted: Mar Sat 02, 2019 7:25 am 
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^ Another good idea.

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 Post subject: Re: Removing Difficult Knobs
PostPosted: Mar Sat 02, 2019 7:36 pm 
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Joined: May Sat 07, 2016 10:20 pm
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Harbor Freight, or look on ebay or Amazon for Trim Removal Tools


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 Post subject: Re: Removing Difficult Knobs
PostPosted: Mar Sat 02, 2019 11:07 pm 
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Location: Sarasota FL USA
tubeR wrote:
I use a webbing strap. Cut a longitudinal slit in the strap. Think of the knob as a button and the webbing strap with the slit as the button hole. Button hole the knob and pull the strap. No scratching the cabinet or the knob.

-- Rich


Years ago, we used to do the same with a length of 300 ohm twin lead.

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 Post subject: Re: Removing Difficult Knobs
PostPosted: Mar Sun 03, 2019 8:20 pm 
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Joined: Feb Sat 12, 2011 2:29 pm
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Location: Fayette County, Pa
Just be careful how much force you apply. I learned that using a church key to pull a knob on a guitar amp a while back. The knob came off, along with the shaft which pulled out of the potentiometer..... parts order followed.....


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