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 Post subject: Re: LSS Chassis Bolt
PostPosted: Sun Nov 28, 2010 8:16 pm 
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Mark III

Joined: Sun Nov 28, 2010 7:36 am
Posts: 394
I needed a laugh today, the funny thing is I just found this screw myself today and was wondering all the same stuff.

You guys are too much.

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Vogelsong

G&L Comanche,
G&L Legacy,
RI 64 Vibroverb Custom
Original 66 Fender Reverb,
Original 59 Fender Bandmaster,
69 Fender Coronada II,
51 Gibson ES300,
Beater Strat,
Waldon Acoustic,


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 Post subject: Re: LSS Chassis Bolt
PostPosted: Sat Jun 23, 2012 3:16 pm 
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Mark II

Joined: Thu Jun 07, 2012 11:49 am
Posts: 100
I replaced mine with a cryogenically treated screw! Sounds much better now.


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 Post subject: Re: LSS Chassis Bolt
PostPosted: Mon Jul 02, 2012 4:53 pm 
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Mark II

Joined: Thu Jun 07, 2012 11:49 am
Posts: 100
I would think you would have to back this screw off a bit when sliding the chassis out or you might rip the foil shield.

Is this correct thinking?

Thanks, Ron


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 Post subject: Re: LSS Chassis Bolt
PostPosted: Mon Jul 02, 2012 7:04 pm 
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Dual Recto

Joined: Mon Jul 16, 2007 1:01 am
Posts: 2828
Location: SoCal
rfrakes wrote:
I would think you would have to back this screw off a bit when sliding the chassis out or you might rip the foil shield.

Is this correct thinking?

Thanks, Ron

Yes. Remember to drain the caps, because sticking your hands inside the chassis can kill you.


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 Post subject: Re: LSS Chassis Bolt
PostPosted: Wed Dec 04, 2013 7:22 pm 
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Mark II
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Joined: Sun Oct 06, 2013 10:41 pm
Posts: 64
Location: Illinois, USA
Would it be possible for a loose shard of foil to fall down on the circuit board or tube socket and short something? I'm thinking about screwing a small repair plate there, 2" X 2" made of aluminum sheet metal.

My RoV2 had signs of an arcing on a tube socket when I got it,(used). Now I'm wondering if it was a shard of foil. My foil is all chewed up there.

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'02 ROV 50 II Combo


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 Post subject: Re: LSS Chassis Bolt
PostPosted: Fri Oct 21, 2016 8:54 am 
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Mark III

Joined: Tue Dec 22, 2015 12:15 pm
Posts: 283
What that screw is doing is completing a Faraday cage. Contacting the foil of the cabinet it's sending the small charge running through the chassis, to the foil. This stops a lot of EM/RF noise.
As for repairing the foil, a bit of copper tape will work fine.

Recently put my Mark V in a headshell that didn't have the foil. It was a bit more noisy and the footswitch clicked/popped.
Put it back in the combo housing and all is fine.

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some guitars and some amps


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