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About 73goldtop

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  1. can someone tell me what Gibson used for pots in their 2000 les Paul classics? I need to replace a tone control. 300k or 500k audio or linear taper.
  2. I don't think hot pups are the issue either. The T-tops in the guitar are in the 7.5k range. Not at all hot. I've come to the conclusion that some guitars are just more susceptible to hum than others.The guitar hummed just as bad with 500k pots as 300k pots. and it hummed with properly grounded electronics. A pain to be sure!
  3. LOL! Sometimes I feel there's outer space in my house but that's usually after several shots of Jameson. : -)
  4. It's a learning curve for sure. Sometimes you have to throw out conventional wisdom when dealing with this stuff.
  5. Mystery solved! It is my solar system after all. I shut down the system and the hum disappeared on the Goldtop. My body picks up emi and rf from the system and sends it into the pickups. What threw me off was the fact that my cheap Epi doesn't seem to be affected by it. My Strat picks it up but you expect it from that guitar. Actually, the Goldtop is slightly noisier than the Strat. Anyway, I feel much better now that I know there's is nothing really wrong with my Goldtop. No doubt it would benefit from a proper shielding but I'm not going to tackle it and I really don't have the funds to pay someone else at this time. Guess I could always tape a ground wire from my belly button to the bridge when I play it. :)
  6. My '73 Goltop into my '82 JCM 800 works for me!
  7. I noticed the guitar picking up clicking sound. Like a ticking clock. I hear it in my Strat also. Turns out its picking up my solar system converter. The system may also be the source of the hum. I'll have to check that out. For those interested, here are some pics of the guitar. My '73
  8. It's done it with two sets of pups so I doubt they are the issue. I just got done pulling each pot, cleaning off the old solder and re-soldering the entire cavity. Once again I get strong continuity at each ground no matter where I place the probes. When I de-soldered the pots , I checked the bridge ground between just the wire in the cavity and the bridge and got a reading of 0. The end result of all this work is no change. The original pups and pots are back in and the guitar sounds beautiful. I've come to the conclusion that whatever is causing the buzz, it's not a ground issue. All pots work as they should. Funny thing is, plugged in and sitting on a stand, there is no buzz. As soon as I pick it up, the buzz starts. On a Par with your average single coil guitar. Maybe adding shielding would help but the thought of pulling everything out yet again is not something I want to do anytime soon. Guess I'll just have to live with it. Based on the research I've done on this, it looks like I'm not the only one that has had to deal with this kind of thing.
  9. The interesting thing is that if I get right next to the amp, the buzz practically disappears. At that point it picks up transformer hum but that is a much lower in frequency. All my guitars will do that. Same thing happens if I bend down and place the guitar very close to my board. You think it would be the opposite. The one last thing I can do is to desolder, clean and re-solder all the ground connections. If that doesn't work, I don't know what else I can do.
  10. According to my meter, I have complete continuity (meter reads 0hms) at the bridge ground.
  11. You are right. I did just that. I also used another amp with the same result. In both cases, I plugged straight in, no pedals. It's definitely a guitar issue.
  12. Well that's not very comforting. It's just strange that a guitar that once had no issue now does. And now it does with the original parts re-installed. Actually, The neck pots are still the 500k pots I put in 3 years ago. They function as they should so I assume they are not the problem. Someone please chime in if a properly functioning pot can still produce unwanted hum. It's not so bad as to make the guitar unplayable but it's my opinion that humbucker based guitars should not be as noisy as single coils. It's also strange that the cheap electronics in my Epi are extremely quiet. That alone would preclude me from ever changing anything on it. The Goldtop sounds fabulous. That's why this issue is so annoying. Guess I'll just have to keep my hands on the strings or turn down a volume pot between songs.
  13. I know this has been discussed to death but I'm having a hum issue with my Goldtop. I've noticed many people get this problem after changing electronics and pickups. About three years ago, I changed out the pots and pickups on my 73. That's when the hum started. I had my wiring checked by a tech and he reflowed a couple of solder joints but that was it. The problem remained and I set the guitar aside. Recently, I thought about selling it so I put the original T-tops and 300k pots back in. I also put covers back on as that is how it came from the factory. I was hoping these changes would take care of the hum as it didn't have the problem prior to changing pots and pups three years ago. However, the guitar still has a hum issue. I put a meter on all the grounds and they all read 0 no matter where I take a reading. That includes the switch, the bridge an the jack. There's no bleed from any hot wire and all the pots function as they should. When I touch any metal part on the guitar, the hum disappears. I'm told that means the grounding is good. If I sit the guitar next to the amp, the hum is only slightly louder than my Epi Les Paul which hasn't been touched. Well within acceptable limits. But when I strap on the Epi, the very slight hum does not get worse. When I strap on the Goldtop, the hum gets much worse. According to what I've read, that means I have a shield issue. My Epi has no special shielding and doesn't have a hum problem but my Goldtop does. Prior to changing pups and pots, it had no hum issue either. So my question is, how can changing or modifying electronics on a guitar suddenly cause a shielding issue? If ground issues, bad electronics, cold soldered joints are ruled out, what could cause this? Put back to its original trim, the guitar sounds so good, I've decided to keep it but the excessive hum is very annoying. It always left my Epi in the dust regarding playability but now also does so in tonality as well. Thoughts?
  14. I have an Epiphone LP custom that was not wired correctly from the factory. The neck tone pot does not work. Never has. I need a tech that can fix the issue with existing wiring and pots. I live in Orange County CA. I checked the pot and it functions. The wiring diagram Gibson sent me for my guitar is quite different from the way it is wired. I'm just all thumbs when it comes to that stuff.
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