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    Gibson Pickup Quick Connect Adapter/Install

    Yes you can cut of the plugs and use the existing switch and jack. With the switch wires black goes to ground (solder to back of one of the pots), red goes to the centre lug of the neck volume control, white goes to the centre lug of the bridge volume control and the green connects to the green...
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    This is odd.

    It is possible that a pickup can have a broken wire somewhere in the coil and still output a signal. The 2 separate parts of the coil act as a capacitor which can pass an AC signal but will not pass any DC current (this is what a capacitor does) . When you measure with a multimeter you are...
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    Troubleshooting Advice - Friedman Runt 20

    I'm not familiar with the amp but looking at the website it has 3 x 12AX7 preamp valves (one of which will likely be the phase inverter) and 2 x EL84 power amp valves. The fact that one channel is working rules out any problem with the EL84 power amp valves so swapping the 12AX7's out should...
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    '66 Vibro Champ grounding.

    Yeah I did wonder about the can cap. Looks like the original chassis can is still wired in place so I would hazard a guess that someone has just wired that in parallel to avoid replacing the original. Definitely a bodge job!
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    '66 Vibro Champ grounding.

    The capacitor connected between the mains and ground is what is commonly known as the "Fender death cap". If that capacitor were to fail short circuit, which is a fairly likely prospect for a 55 year old capacitor, then dependant upon which way round the plug is inserted could mean that the...
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    Pot values in CS '60 VOS Les Paul Special

    You can measure the tone pots in situ, just put your meter probes on the outer 2 lugs of the pot (the one that is grounded and the one that has nothing connected to it). The volume pots can't be measured in circuit as you will be reading the resistance of the pot in parallel with the pickup, you...
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    Burstbucker 1&2 with low resistance output values

    Yep, resistance will increase with temperature. Some info on how temperature effects the resistance of copper here https://www.cirris.com/learning-center/general-testing/special-topics/177-temperature-coefficient-of-copper If my maths is correct, using the formula given there there, for a...
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    Burstbucker 1&2 with low resistance output values

    Temperature will indeed have an effect but would never cause anything like the readings the OP is quoting. My first guess would be that the OP is measuring the resistance with the pickup in the guitar and the volume pot not turned fully up. When you measure a pickup in circuit you are actually...
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    Pot values in CS '60 VOS Les Paul Special

    Not sure about the pots but I would guess the volume pots will be either 300K or 500K and the tone pots will be 500K. They will have the value marked on the side of them but it can be difficult to see when they are in the guitar. The capacitors are 0.022 uF.
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    Burstbucker 1&2 with low resistance output values

    Firstly the DC resistance of a pickup is not a measure of it's output, it is simply the resistance of the coil of wire and it depends on what the thickness of the wire is and how long (how many turns) the wire is. The 42 AWG wire used in Burstbucker pickups has a resistance of 1669 ohms per...
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    Radio?

    Yes, I'm into anything that uses valves! As well as building and repairing guitar amps I also restore old valve radios. I have a few myself and have done quite a few for other people. This is one of mine, its a GEC AC37 It was built in Coventry, England (which is where I live) in 1937. I...
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    07 Les Paul Special Faded DC

    You're welcome, glad to hear you have fixed it!
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    07 Les Paul Special Faded DC

    Do these have the right angle style toggle switch? If so it should be fairly easy to see what is going on with the switch. There are 2 sets of contacts, with the switch in the middle position both sets should be closed, when the switch is moved up or down it should open the contacts on one side...
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    07 Les Paul Special Faded DC

    It sounds like you either have a wiring fault or a faulty switch that is causing both pickups to be selected when the switch is in the neck position. Try touching the pickups with a screwdriver when the switch is in the neck position to see which pickup(s) are active (you will hear a click...
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    What Happens If ???

    There is no -ve, the signal from a guitar pickup is AC. Some pickups such as original style Gibson humbuckers have a single core shielded wire where one end of the coil is connected to the centre conductor and the other to the shield. Others have the coil wires separate from the shield (or in...
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    What Happens If ???

    It has nothing to do with how many coils a pickup has, both single coil and humbucker pickups can be out of phase. They can either be magnetically out of phase where one pickup's magnet is reversed or electrically out of phase where one pickup's wiring is reversed. Some info on the subject here...
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    Shadow E tuner

    Is your Google broken? Took me about 20 seconds to find this https://cdn.shopify.com/s/files/1/1601/8433/files/SH_E-tuner_manual.pdf?4161921260827796079
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    5F1 Amp Kit

    You're welcome, glad to hear it's working!
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    5F1 Amp Kit

    Absolutely, I see lots of incorrect and often downright dangerous advice being posted on forums so it is only right to be cautious!
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    5F1 Amp Kit

    It's perfectly OK to swap them they are just 2 ends of a coil of wire in the transformer. The negative feedback I mentioned earlier has to be out of phase with the stage it is feeding back to, if it is in phase it becomes positive feedback and causes the squealing. It's quite common for this to...
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