SG Sound Problem

willyb1

New member
I have a 1973 SG. When I plug into the amplifier I sometimes get a sound like a bad cord. I'm using a known good sound cord, I'm wondering what inside could there be some electrical capacitor breaking down. I've cleaned the 1/4" jack connection, no apparent loose wiring.
 
Re: SG Sound Problem

It might be worth re-flowing the solder joints, but first I'd look at that socket and just make sure the tip contact hasn't been bent back a little over time. You should be able to bend it back a bit to ensure you get a solid connection when you plug a jack in.
 
Re: SG Sound Problem

The only capacitor in your guitar is the tone pots capacitors. They are unlikely to cause this. You should disconnect the electronics and start testing the pickups alone.
 
Re: SG Sound Problem

There's obviously a connection problem. Re-soldering some of the joints usually helps quite a bit. When I did 50's wiring on my SG, I touched up the other joints with some fresh solder. It would be a good idea to invest in a cheap multi-meter from56 Radio Shack for testing all your components. There not that very expensive...around $5 to $10 maybe?;)

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Re: SG Sound Problem

I'd bet a whole dollar that you simply need a new jack. Over time, the insulation material in the jack can start to break down. Before I got too carried away, I'd replace the jack with a Switchcraft USA jack.

Bill
 
Re: SG Sound Problem

Does it clear up when you wiggle the toggle, or do you have to wiggle the cord at the jack? If it clears up with the toggle, or you lose signal entirely when switching pickups sometimes, replace the toggle with a new Switchcraft one. The little thin tabs that are pushed against or away from the main contact (depending on the switch), wear out and can be bent too far, resulting in reduced contact, and any vibration breaks the connection momentarily.

If it clears up by wiggling the jack, then replace the jack, or bend the tip prong further inward so you get a better connection. Also might check to see if the jack is separating from itself, with the PCB spacers/washers between the metal bits freely spinning.
Just as easy to replace the jack, though, especially if you've got an old junky pedal you can loot for parts.
 
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