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/diy/ - Do It Yourself


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1517983 No.1517983 [Reply] [Original]

Hi, i bought a handmade guitar for a real low price (like 15$), it had no keys, bridge nor strings. I mounted the bridge today and tried to check wether everything is alright and tensed a string near pickups, "played" it, and it made no sound.

I don't have an amplifier, since i enjoyed learning to play acoustic guitar I just bought it to play Rocksmith on PC and borrowed my friends cable to check if the guitar is functional.
The cable is working, thats what im sure of.

Since the pickups are handmade i suspect they are the problem since magnets in them glued off and sometimes move around. Can someone help me and tell me how should they work? Maybe they are polarized wrong? Any help would be appreciated.

>> No.1517984

>>1517983
A guitar that cheap isnt going to be worth playing anyway.

>> No.1517986

>>1517984
It's some guy (who I was told is dead now) handmade project, I just want to make it work. The price was a real bargain and I like to fix things so I took a shot, you won't discourage me

>> No.1517988
File: 167 KB, 960x720, 48359321_202665260681823_4287694803971342336_n.jpg [View same] [iqdb] [saucenao] [google]
1517988

Here's a closer picture of the pickups

>> No.1517990

>>1517983
they're probably "passive" pick-ups OP.
you wont get any signal out of them unless they plugged into an amp

>> No.1517991

>>1517983
can you list what you've done to test it?
did you plug it into an amp?

>> No.1517992

also, did you ask int eh guitar builders thread?
i'm sure somebody in there knows the answers

>> No.1517997

>>1517990
So plugging to PC via RealTone cable is not equal to plugging it into amplifier?

>>1517991
I plugged it via RealTone Cable to PC and launched Rocksmith, on the start there's calibration tool with volume meter, i also turned on monitoring input sound of the cable in windows.
I placed the string on the bridge, made string tense with my left arm as if it was attached to the key in the most guitar-natural way i could and made it vibrate.
It has no result, moreover, the guitar makes white noise sometimes, i guess it has something to do with pickups because when i press on it a little it stops.

>> No.1517998

>>1517992
I didn't. Didn't even check if there is one, sorry.

>> No.1517999

>>1517983
Long shot OP, have you got an oscilliscope? Probably not. Okay, wire the audio signal into an 1/8th cable (any two wires, really) and plug it into your computer's microphone port.
Fire up Audacity, hit tecord and see if you get ANY sine waves being recorded

>> No.1518013

>>1517999
>wire the audio signal into an 1/8th cable
I dont have a soldering iron with me rn, won't the Rocksmith cable do pretty much the same thing?
Because if yes then in Audacity via the Rocksmith cable it generates no sine waves, it makes like 1 mm ones when i tap the pickup.

>> No.1518018

>>1517998
no worries mate.
just trying to help.
>>1517997
yeah i'm not sure. i guess i wouldn't know about that method.
from my understanding of passive pick-ups, they need to get some external power from being connected to something like an amplifier

>> No.1518021

>>1518018
I know, i can almost bet they are passive but to my understanding PC should work like amplifier in that case

>> No.1518032

>>1518013
Is working fine then. Signals are extremely low amplitude, probably moreso on homewound pickup

>> No.1518036

>>1518032
from the build of it i think its homewound, its just some magnets and a copper coil. Still though, string movement doesnt make any sound

>> No.1518055
File: 282 KB, 2048x1536, 48373842_533355497131213_1884141305953517568_n.jpg [View same] [iqdb] [saucenao] [google]
1518055

Here's what tuner shows, its twitching at this position

>> No.1518064

>>1518036
>low amplitude.
i think the strings need to be fully strung and close to correct tension in order to get a good signal in the pick-up

>> No.1518067

>>1518064
Ill put one string in it in a moment and check it like that then

>> No.1518068

>>1517983
What is the distance between pickup and string?
ref
https://www.thegearpage.net/board/index.php?threads/pickups-to-string-distance-how-much-how-important.297765/

Too close (or too far) can make what you are seeing happen.

Assuming all else is correct.

>> No.1518173

>>1518055
I'm the painter from the other thread.
It seems that at leat one of the mic is working otherwise there would be no signal. Then again, you're the most fit to find out

>> No.1518184

>>1518173
Thanks, Ill post some updates tomorrow as Ill have more time

>> No.1518202

>>1517990
fucking retard.

>> No.1518288

>>1518068
Yes came here to say adjust the pick up height closer to the strings (alternately lower the action of the strings closer to the pick up) also open it up check the ground and all the connections. Make sure the volume knob is turned up and the cable plugged all the way in. If a that fails take it to a luthier if it's a small fix it could be like $20

>> No.1518325

Passive pickups put out enough signal your computer 1/8" mic input will hear it.

Guitar pickups will pickup tones played by a nearby cell phone. So I just set a phone to a ring or whatever and use that as a function generator rather than hitting the strings over and over trying to look back and forth.

If you can't get anything from the guitar, check the cables and reflow the connections inside the guitar. Test the pickup for dc resistance.

>> No.1518600

>>1517983
check this out OP
https://www.seymourduncan.com/blog/the-tone-garage/how-a-multi-meter-can-help-your-guitar

could be anything from a bad solder somewhere in the guitar or cable, to bad pickups.

>> No.1518725

>>1518021
It should work, just make sure to plug it into the mic input on the pc instead of line-in. Best way to be sure though is to just borrow an amp

>> No.1518734
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1518734

>>1517983
Well have you tried asking the previous owner?

>> No.1518804

>>1518734
>Well have you tried asking the previous owner?
>>1517986
>It's some guy (who I was told is dead now)
Are you holding a seance any time soon?
Perhaps you could ask him on OPs behalf.

>> No.1518830

>>1517983
Take out the pickups and see if they're wired up properly, if at all. Take the pickups out of circuit and see if there is any continuity across them or if they have any resistance (should be somewhere around 6-8kohms).

>> No.1519049

>>1517984
there is very little that makes a guitar beyond playable, this isn't acoustic, everything that makes a guitar good or bad is in the pickups.

>>1517986
as long as the neck isn't warped, its playable.
check to see how straight it is and if it has a truss rod.

>>1517997
the realtone cable is finikey until it works so its not a good indication of the guitar is functional or not.

get audacity, and look at it in there, it will give you more info then the game will.

------------------

Ok, now here is where I come in with some advice of my own.

you want to play rocksmith correct, rocksmith doesn't really like single coils as much as it likes humbuckers.

https://www.warmanguitars.co.uk/product-category/pickups/single-coils/

and specificly

https://www.warmanguitars.co.uk/product/warman-texas-trinity-noiseless-stacked-bridge-position-4-wire-special-white/
https://www.warmanguitars.co.uk/product/peacemaker-tele-warm-rail-tele-sized-guitar-humbucker-can-be-coil-tapped/
https://www.warmanguitars.co.uk/product/peacemaker-single-coil-sized-4-wire-humbucker-classic-output-and-tone/
https://www.warmanguitars.co.uk/product/t-rail-blazer-tele-type-super-hot-rail-bridge-humbucker/
https://www.warmanguitars.co.uk/product/twin-loco-hot-rail-humbucking-pickup-14-1kohms/

they aren't the best pickups you can get but for the price, they are almost unmatched. you could also get yourself some china pickups for 10$ and put them in, but seeing these are single coils it would probably be best to use a single coil format pickup.

now, this person could also be using a shit volume knob, my understanding is you want something that is exponential not linear

there is also a VERY good chance the pickups are fucked because its copper wire and who knows if he wax potted the shit.

but like I said above, check for neck twisting, there is very little you can do if the guitar is warping bad, is a 'is this worth investing in at all' check.

>> No.1521677

I'm trying to help a friend out and though this would be the right place.
A friend ordered a guitar and the wiring and pots and pickups came uninstalled.
There's two pickups and 4 pots, the pots and Jack are wired together but the pickups aren't.

The pots have some lugs unfolded but I have no idea what pot and what lug I should solder the 4 wires that come out of the pickups.

>> No.1521703

>>1521677
>this would be the right place
try again

https://www.seymourduncan.com/wiring-diagrams