I have a pair of Probuckers if anyone is interested.
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Thunderbird Club
- Thread starter TBird1958
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- club thunderbird
Kind of how I became with EBCFs. I loved how they felt (no Cobalt sensitivity/princess fingers problem). I just wasn't all that enamored with the sound.
something tells me your AC outlet grounding may be goosy….how old is the house/wiring?..ohm out the ground on your outlet to the nearest exposed pipe with you VOM…..shut the breaker to that outlet off if it makes you more comfortable…
House built in 1986.
I don't have any grounding point (pipe) within 15'. I did test a different outlet on the same circuit and it bounced around but settled near 5ohms.
Just to add to Chuck's suggestion, take a look at your breaker panel. There should be a ground wire from the panel to a ground rod.
no bueno, should read much closer to 0...
run an extension cord to near that pipe, fire up the amp and if noisy. ground the chassis (using a piece of zip cord) to the pipe..
run an extension cord to near that pipe, fire up the amp and if noisy. ground the chassis (using a piece of zip cord) to the pipe..
That tells you the outlet grounds are connected to each other. 5 ohms is on the borderline, but high from outlet to outlet. I would check the outlets (breakers off) and make sure the ground wires are actually connected to the receptacles. Sometimes guys will ground the box and rely on the mechanical connection of the receptacle/box.
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I am having a hard time visualizing what you mean. I can run an extension cord from the outlet the amp is plugged into, but are you saying to move the amp closer to the pipe and ground the chassis to that?
I think he is saying to use an extension cord to create a ground connection from the pipe to the amp chassis.
There is no visible pipe in the breaker box but all the ground wires exit the top of the panel and into the wall.
Somewhere there should be a large copper wire that connects the neutral bus to a metal pipe or ground rod.
https://www.bobvila.com/articles/wiring-a-breaker-box/
There is a large bundle of copper wire (cable) that goes out the top of the box. No telling where it goes after that as I don't care to rip out sheetrock.
I'm gonna look mine up now. I'd thought the 2013 was different, so it looks like I stand corrected. I'll get back with some info on my 'Bird in a bit.
Looks like the same positio in relation to that middle screw on the pg, yeah...
It seems 2012-built CPs have started showing up recently.....or we've only just started noticing them?
I think, but have no proof, that *if* 2012 is when Epi started building the Classic Pro (not seen any 2011-built ones....yet), through maybe a year-ish later in 2013, those were built for the 2013 model year (like car manufacturers do...), and then some time in 2013, production changed to the 2014 model year bass, with the different p/u locations.
So, basses later-built in 2013 may have 2014 pickup configuration?
My current made-up reason for the change is, since the CP and VP appear to have been made in the same factory, and are, imo, amazingly similar, they wanted to use the original CP tooling to develop the VP, because of the pickup locations that are more close to the original Thunderbirds. So, they changed the CP to be more like the Gibson T-birds?
Alternately, maybe Gibson finally approved for them to copy the then-current Thunderbird, and they put the old templates on a shelf until the idea for the VP happened along?
You have *NO* idea how relieved I was that those two screws ended up aligned like that
While not definitive, perhaps it adds a data point. My serial number says February 2014 but the dates on pickups say October 2013.It seems 2012-built CPs have started showing up recently.....or we've only just started noticing them?
I think, but have no proof, that *if* 2012 is when Epi started building the Classic Pro (not seen any 2011-built ones....yet), through maybe a year-ish later in 2013, those were built for the 2013 model year (like car manufacturers do...), and then some time in 2013, production changed to the 2014 model year bass, with the different p/u locations.
So, basses later-built in 2013 may have 2014 pickup configuration?
My current made-up reason for the change is, since the CP and VP appear to have been made in the same factory, and are, imo, amazingly similar, they wanted to use the original CP tooling to develop the VP, because of the pickup locations that are more close to the original Thunderbirds. So, they changed the CP to be more like the Gibson T-birds?
Alternately, maybe Gibson finally approved for them to copy the then-current Thunderbird, and they put the old templates on a shelf until the idea for the VP happened along?
