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cartman, eric
PostPosted: Mon Sep 03, 2007 5:43 pm    Post subject: Reply with quote



Joined: 05 Jan 2006
Posts: 491

adehh... nak kena potting..??
xde option lain ke sblum resorting to potting the pups..??

am looking at trying braided atau shielded wires utk buat balik wiring.
or try wire yg pakai dlm hi-fi audio system keta. them are shielded wires.

ok ke..?
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setanicx
PostPosted: Mon Sep 03, 2007 10:17 pm    Post subject: Reply with quote



Joined: 25 Jul 2006
Posts: 133

cartman, eric wrote:
adehh... nak kena potting..??
xde option lain ke sblum resorting to potting the pups..??

am looking at trying braided atau shielded wires utk buat balik wiring.
or try wire yg pakai dlm hi-fi audio system keta. them are shielded wires.

ok ke..?


eerr ko buat shielding mcm guitarnuts tuh ke?atau ko just taruk foil kat blakang p/g je? Confused
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cartman, eric
PostPosted: Tue Sep 04, 2007 3:29 am    Post subject: Reply with quote



Joined: 05 Jan 2006
Posts: 491

aku just taruk foil blkg p/g je...
anyhow bkn shielding ikut guitarnuts tu utk hilangkan 60cycle hum ke..??
or am i wrong..?

also, aku ade bbrp soalan:-

- ape beza characteristics 60cylce hum ngn hum caused by grounding issues..?
- kalo time soldering, ter-overheat, pot, cap ngn output jack bley rosak tak..? kalo rosak, will it hum..?
- kalo pakai braided / shielded wires bley kurangkan hum tak..?

aku baru je pakai single coil, so i dont know where to draw the line between 60cycle hum vs. grounding problem hum.

thanks.
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ultraman_cosmo
PostPosted: Tue Sep 04, 2007 11:18 am    Post subject: Reply with quote

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cartman, eric wrote:
aku just taruk foil blkg p/g je...
anyhow bkn shielding ikut guitarnuts tu utk hilangkan 60cycle hum ke..??
or am i wrong..?

also, aku ade bbrp soalan:-

- ape beza characteristics 60cylce hum ngn hum caused by grounding issues..?
- kalo time soldering, ter-overheat, pot, cap ngn output jack bley rosak tak..? kalo rosak, will it hum..?
- kalo pakai braided / shielded wires bley kurangkan hum tak..?

aku baru je pakai single coil, so i dont know where to draw the line between 60cycle hum vs. grounding problem hum.

thanks.


i m back setelah mem'buzy'kan diri beberapa minggu.

Kalo kita ceta pasal hum dan noise kita secara ampnya boleh pecahkan pekara ne kepada 2 jenis. Ada banyak jenis tapi aku nak ceta pasal 2 jenis jer.
1. eletromagnet noise.
- this is all about magnet Interference
- hasilkan 50hz hum or 60hz hum
- biasanya berlaku pada single coil.
- satu humbuker ada dua coil single coil yang diletakan pada kedudkan phase out supaya setiap coil akan membatalkan satu sama lain.
- sebenarnya, buat la shielding cam mana pun kat guitar takkan dapat buang electromagnet nyer noise, unless korang cabut mangnet dan pickup trus tak bunyi.
- benda yang sama sekirannya ada 60hz dan 50hz hum pada adapter, nothing to do just darik adapter lain la.
- Tapi utk pickup strat, salah satu yang biasa dibuat adalah wiring middle pickup split polarity.
- Atau try terbalikan pickup middle, yang atas gi bawah dan yang bawah gi atas. tapi kadang kadang tak menjadi juga ikut pickup magnet.
- nothing much utk pekara hum canceling kecuali capatkan pickup hum cenceling.
- plz la click kat bawah ne utk sample bunyi 50 - 60hz hum
- http://en.wikipedia.org/wiki/Mains_hum
- tranformer tube amp selalu kuar 50hz hum.
- speaker juga adalah magnet dan coil dan ia juga sebenarnya punca noise hum.
- utk vintage sound, kena berkorban la dengan bunyi noise ne... noiseless pickup takkan dapat crystall dan glassy sound dari vintage strat pickup.

2. electrostatik noise.
- Radio Frequency Interference
- Ia begantung pada amp, speaker, distance, shielding dan banyak pekara la.
- ia disebabkan oleh eletrostatik pada litar yang di ganggu oleh radio frequency dari speaker dan amp.
- Ini baru ceta kena shielding la, potting laa.
- tapi potting lebih kepada masalah microphonic feedback. ketuk dengan pensel pun boleh dengar nyer masalh.
- shielding ne bunyi cam mudah jer, ketakkan jer aluminium foil belakang pickguard.
- if ada bahagian active or hot bersentuhan dengan shielding part kan menyebabkan masalah lagi teruk.
- pastikan shielding ada disambung kat neutral earth dan tak bersentuhan dengan mana mana hot wire.
- gunalah wire yang shielding utk setiap conection dalam circuit guitar.
- Nak shielding tu buat la seluruh cavity terus jangan la pickguard jer.
- kalo nak potting pickup tu, jangan panas sangat la sampat pickup hancus. Wire halus pada pickup tu sebenarnya ada selaput transparent macam penebat supaya wire tu tak bersentunan kalo dililit jadi coil. So selaput tranparent tu boleh hilang kalo over heat.


Quote:
- kalo time soldering, ter-overheat, pot, cap ngn output jack bley rosak tak..? kalo rosak, will it hum..?

- 25watt to 30 watt ratting solder iron.
- capasitor macam ceramic or e cap kalo rosak boleh kuarkan sedikit noise.
- potietometer kalo rosak akan menyebabkan hot point bersentuhan dengan earth shielding. ne akan menyebabkan permukaan shielding cover jadi hot plak. for sure akan bertambah noise laa.
- awas! pada switch, sebab kebanyakan orang selalu salah wiring switch hingga hot wire bersentuhan dengan earth wire.


Just nak tanya
1. adakah noise dan hum tu berlaku pada guitar yang sama?
2. kengkadang setiap tempat kat umah ka, kat tempat jam kaa?
3. setiap amp or speaker cabinet
4. setiap cable
5. setiap effect chain even clean.
6. lampo aper ah, dekat monitor ka, monitor pc gua 2 meter baru tak der hum... so pakai la LCD kalo nak buat recording... hhehehe

sebab bebenda lain pun sebenarnya juga penyebab hum dan noise cuma ia kedengaran too min pada humbuker.


Single coil fender.
- fender pickup lepas taun 80 dengan 3 single coil ne ada sedikit kemajuan.
- pickup middle dibuat reverse magnetic dimana jika pada position 2 dan 4 pada switch ia macam humbuker dan low noise dan jadi automatic hum cenceling.
- So if korang pindah pickup middle ker bridge or neck akan menyebabkan kebolehan ne terhapus.
- but jangan la bukak pickup dan terbalikan polarity noth south magnet kecuali korang tau aper sebenarnya yang nak dibuat. Ia tak semudah cam tu.
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setanicx
PostPosted: Tue Sep 04, 2007 1:47 pm    Post subject: Reply with quote



Joined: 25 Jul 2006
Posts: 133

cartman, eric wrote:
aku just taruk foil blkg p/g je...
anyhow bkn shielding ikut guitarnuts tu utk hilangkan 60cycle hum ke..??
or am i wrong..?

also, aku ade bbrp soalan:-

- ape beza characteristics 60cylce hum ngn hum caused by grounding issues..?
- kalo time soldering, ter-overheat, pot, cap ngn output jack bley rosak tak..? kalo rosak, will it hum..?
- kalo pakai braided / shielded wires bley kurangkan hum tak..?

aku baru je pakai single coil, so i dont know where to draw the line between 60cycle hum vs. grounding problem hum.

thanks.


err aku ada ekperimen merapek pasal shielding nih.aku buat kat gtar epi aku.langsung x kuar bunyi.last2 aku potong ground wire yang sambung atas pot ke pot tuh terus elok.hmm cuba ko try buat wiring asal balik.....kalo x antaq kat pro je hehhehe...
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ultraman_cosmo
PostPosted: Tue Sep 04, 2007 2:10 pm    Post subject: Reply with quote

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Quote:
err aku ada ekperimen merapek pasal shielding nih.aku buat kat gtar epi aku.langsung x kuar bunyi.last2 aku potong ground wire yang sambung atas pot ke pot tuh terus elok.hmm cuba ko try buat wiring asal balik.....kalo x antaq kat pro je hehhehe...


biasa terjadi bila ada hot wire dari pickup touching shielding foil. Hot wire dineutralkan. so tak der signal.

harap guna electrical tape pada joining yang terdedah supaya tak bersentuhan dengan foil terutamanya pickup selection switch.
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cartman, eric
PostPosted: Tue Sep 04, 2007 10:40 pm    Post subject: Reply with quote



Joined: 05 Jan 2006
Posts: 491

wah dah ade article, thanks for takin the time to answer.
anyhow aku blum p cari wire braided / shielded.
tp aku pau wire dr power supply PC yg dah kong.
bigger than a 22gauge wire, tp ok la bley pakai utk try.


ultraman_cosmo wrote:


Just nak tanya
1. adakah noise dan hum tu berlaku pada guitar yang sama?
2. kengkadang setiap tempat kat umah ka, kat tempat jam kaa?
3. setiap amp or speaker cabinet
4. setiap cable
5. setiap effect chain even clean.
6. lampo aper ah, dekat monitor ka, monitor pc gua 2 meter baru tak der hum... so pakai la LCD kalo nak buat recording... hhehehe


sebab bebenda lain pun sebenarnya juga penyebab hum dan noise cuma ia kedengaran too min pada humbuker.


jawapan utk soalan diatas, kire dr exp sblum2 ni, blum di ambil kire wiring pkai power supply PC. tu tgh buat balik wiring.

1- yes gitar yg sama. tp 2 set pups yg lain.so gitar sama, output jack sama, spring claw sama.
2- kat umah je. aku x bwak kuar mane2 gitar aku tu.
3- aku try kat 1 amp je.the amp itself is dead silent at full vol in the clean channel.
4- xde effect chain. aku cucuk trus kat amp for testing.amp clean channel.
5- aku memblakangkan monitor time test. kadang2 off skrin.

setanicx wrote:
kalo x antaq kat pro je hehhehe...


tu last skali la bro...time mmg dah give up.. Laughing
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ultraman_cosmo
PostPosted: Thu Sep 06, 2007 4:47 pm    Post subject: Reply with quote

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Quote:
1- yes gitar yg sama. tp 2 set pups yg lain.so gitar sama, output jack sama, spring claw sama.
2- kat umah je. aku x bwak kuar mane2 gitar aku tu.
3- aku try kat 1 amp je.the amp itself is dead silent at full vol in the clean channel.
4- xde effect chain. aku cucuk trus kat amp for testing.amp clean channel.
5- aku memblakangkan monitor time test. kadang2 off skrin.


Maybe sebab utamanya pickup tu. Maybe somthing wrong with the pickup. Tu kena tanya pro tukang repair guitar.

kalo dah wring n shielding semua confirm ok. sure last tingal pickup itself.

Aku ader satu trick la yang pernah aku guna kat salah satu guitar member aku dulu. Configuration SSS. bridge dan neck single coil tu bising. So aku install stack humbuker dimarzio single noise cancel utk middle, so dalam kedudukan 2 dan 4 tak ler horible sangat noisenya.

Tapi desolder n soldering sebenarnya benda senang tapi boleh merosakan benda sekelip mata. terutama part part electronik dan juga semua benda yang ada coil terutamanya pickup.
- Aku syorkan kalo korang solder pickup. Solder the other part terdahulu dan biarkan semua wire wire pickup kemudian dan terakhir.
- lepas siap semuanya baru consentrate kat wire pickup utk last.
- sebabnya kalo korang panaskan wire hot or ground pickup terutamanya dengan solder iron watt tinggi, heat tu akan menyerap masuk ikut wire dan trus ker wire halus coil pickup.
- kat sini perlu buat fast soldering.
- memula korang solder skit kat ujung wire nak solder. Supaya senang nak lekat nanti. Dan wire yang disolder biasanya lebih keras dan tak mudah putus.
- dan sedikit kat tempat nak solder.
- then panaskan tempat nak solder dan push wire rapatkan. bukannya panaskan wire dan timah kat tempat nak solder.
- once solder kat wire cair, jauhkan iron solder bit.
- pakai solder paste supaya timah melekat dengan betul.
- jangan la guna keadah pintal wire kat tempat nak solder then solder sampai solid. Nanti nak desolder pun susah. last last potong wire trus.
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browndog2woof
PostPosted: Fri Sep 07, 2007 2:26 pm    Post subject: Reply with quote

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bro cartman, check the pickups use multi tester

- pickup mati
- groundwire pickup putus
- demagnetized pickups

or grounding amp atau rumah problem... btw, cold soldering tak berapa stable buat masa ini. unless kalau in the future diorang dah improvise the technology on it, baru bole kot?

woof!
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ultraman_cosmo
PostPosted: Fri Sep 07, 2007 3:24 pm    Post subject: Reply with quote

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Ok. Mai aku bg tau cam mana nak pakai multimeter check pickup.
Kalo ada cara lain pun habaq la juga.

1. check pickup to ok ker tak.
- sebenarnya ada macam macam cara tapi aku selalu guna diod function pada multimeter.
- bila switch to diod function ->- biasanya utk multimeter yang ada bunyi dia akan bunyi tooootttt.
- So letak satu bit kat hot wire dan satu lagi kat ground wire pickup tersebut.
- if tak der bunyi or lampo nyala[ada multimeter pakai led indicator] mean litar putus. mean ada wire yang terputus pada pickup.


2. kita check resistance.
- turn multimeter pada resistan mode [rintangan]
- pickup single coil biasa dalam range 5k ker 10k. humbuker boleh samapi range 15k.
- if ada bacaan dalam range tu mean pickup tu ok.
- if terlalu rendah maksudnya ada wire coil touching atau lita pintas dalam coil tu.
- nothing much to do if ada short circuit kecuali rewinding balik pickup tu.
- if tak der bacaan langsong, mean wire or coil litar putus.
- so kalo ader satu set pickup yg kita terlupo mana satu bridge or neck, biasanya dc resistance bridge lebih dari neck.

Quote:
- groundwire pickup putus

- aha ne selalu terjadi. sebab ground wire should solder to pickup body or plate.
- try panaskan part solder pada body pickup tu.
- kena buat cepat jangan sampai itu pickup jadi maggi coreng mamak.
- one timah cair jer ratakan dan jauhkan solder iron.
- Pickup baru pun sebenarnya ada masalah body grounding sebab kebanyakan try guna cold soldering nyer pasal.
- biasanya aku try sentuh pickup pole or steel body utk check perbezaan noise kengkadang.


Extra
- Sebenarnya cara paling tepat utk setkan combination pickup adalah dengan keadah DC resistance. Sebab sebelom ne aku pernah bagi tahu guna output pickup. hampir sama tapi dc resistance biasanya lebih tepat.
- kata lah kita ada 3 bijik pickup sss. kita fokus kepada pickup bridge dan middle sahaja.
- ukur resistance utk pickup bridge dan ukur resistan utk pickup middle.
- ukuran utk kedua duanya sepatutnya tak terlalu jauh contohnya.
- bridge maybe bridge maybe 8k dan middle maybe 7k
- benda ne tak boleh la sampai bridge = 12k dan middle 6k sahaja.
- bila berada pada position 2 [bridge+middle] kita akan dapat terlalu banyak perbezaan output level antara position bridge sahaja or middle sahaja.
- Ne disebabkan dc resistan pickup adalah rintangan. bila ikut hukum ohm kalo 2 resister parelel dengan nilai yang hampir sama akan dapat nilai gabungan yang hampir sama juga.
- (R1XR2)/(R1+R2) = total R parallel thing.
- so utk elakan dari dari output terlau banyak perbezaan antara pickup dan gabunggan pickup pikap, so di syorkan carik lah pickup yg menghampiri nilai resistan pikup pikup jirannya.
- maybe bridge 8k, middle 7k dan neck 6.8k sebagai contohnya.
- so selain kena beli tunner guitar, harap DIY gutarist kena ada multimeter... hehheheheh
- multimeter sebenarnya banyak guna, even boleh guna utk calibrate pickup high or buzz fret dan banyak lagi. u ill know this later.

Hope this help.
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Last edited by ultraman_cosmo on Mon Sep 10, 2007 10:18 am; edited 1 time in total
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cartman, eric
PostPosted: Fri Sep 07, 2007 3:54 pm    Post subject: Reply with quote



Joined: 05 Jan 2006
Posts: 491

thanks for the replies, appreciate it

but before that, a few questions i have-

1) pickup mati - ape consequence pup mati, no sound at all or hum..?
2) ground wire pup putus - ini effect that said pup only atau all, as in all 5 selector position, or just the certain positions that said pup is engaged.?
3) demagnitized pup - ape kesan..? low / weak signal..?

thanks.

p/s- bro cosmo, you got PM
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ultraman_cosmo
PostPosted: Fri Sep 07, 2007 4:08 pm    Post subject: Reply with quote

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Quote:
p/s- bro cosmo, you got PM


reply
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browndog2woof
PostPosted: Mon Sep 10, 2007 11:19 pm    Post subject: Reply with quote

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pergh! dah mengganas dengan seymour duncan ya... jan pon nak beli satu daa....
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ultraman_cosmo
PostPosted: Fri Sep 14, 2007 4:19 pm    Post subject: Reply with quote

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===============================================
Tim Stanley's FAQ regarding determining the phase relationship of a pickup coil.
===============================================

Here is a method fellow alt.guitar contributor J. D. Kimple told me
about to resolve phase problems with pickups. It works using a
regular old VOM on passive guitar wirings. With this test, you do not
have to de-string your guitar to test questionable wiring. And you
can simply avoid trial-and-error wiring of a new pickup.

I tried to write this FAQ assuming that non-electrical engineers would
read it. However, I assume you have some technical sense and ability.
I recommend reading Ralph Denyer's Guitar Handbook for a good
fundamental lesson on pickups (single/humbucker, coil taps, phasing).
It is a great book about guitars in general. Every section is worth
reading and the book is worth owning.

--------------------------------
Equipment
--------------------------------
1. Beg/Borrow/Steal a volt-ohm meter - the kind with the needle (got
to have the needle, none of this digital display stuff).

2. Set it to the 10K ohm setting (sometimes you may need to use the
1K ohm setting, too).

3. Clean the resin off the alligator clips you keep in the storage
compartment in your guitar case, and clip the red meter probe to the
one alligator clip and the black to the other alligator clip. Be sure
the probes make good connection and that resin doesn't get in the way.
It really doesn't matter which probe goes where - just stick with some
convention - this is important to establish phase.

--------------------------------
Single coil
--------------------------------
4a. If you are working with a single coil, you have one coil (duh)
which has two real wires, and maybe a ground/shield wire too. Life is
easy. Ignore the ground/shield wire for now.

--------------------------------
Humbucker
--------------------------------
4b. If you are working with a humbucker, you have two coils, and up
to 4 wires, plus maybe an additional ground/shield wire. Ignore the
ground/shield wire for now.

If you have two wires, you can assume that the humbucker can only be
wired as a standard series humbucker, and you can treat it as a single
coil for this process. In fact, what you have is one wire to each
coil, and they are internally connected. Don't worry about this
detail.

If you have 4 wires, you need to determine which wires belong to which
of the two coils. First, I refer you to the Stewart MacDonald
humbucker wiring FAQ for wiring color codes of various manufacturers.

However, to determine/verify which wires belong to which coil, choose
one wire and attach one meter probe to it. One by one, attach the
other meter probe to each of the other three wires. One and only one
of the three connections should show continuity. Two of the three
connections should indicate no continuity. If this is not the case,
you have a broken pickup - some wires inside are broken or shorted.
If more than one wire shows continuity, you have an internal pickup
short. If no wires show continuity, you have broken internal
connection.

Assuming that the pickup is in working order, you have now identified
the pair of wires that belong to one of the coils. Check to make sure
that the other two wires show also show continuity as they should be
attached to the other coil. Now you have the wires sorted out for the
two coils.

--------------------------------
Unconnected pickups
--------------------------------
5a. If you are working with unconnected pickups prior to installation
in the guitar - all the better. Connect the two meter probes to each
of the two wires associated with one coil.

--------------------------------
Connected pickups
--------------------------------
5b. If you are working with pickups that are wired into your guitar
already, that's OK. Plug a cord into the guitar. Turn all volumes up
to the max. Open your tone controls up to the most trebly position.
Put the pickup selector switch to select the one and only one pickup
you are working on. No combo pickup positions. If you have coil taps
- turn them off for now. If you have phase switches, put them in what
you believe is their in-phase positions. Connect the red meter probe
to the tip of the guitar chord plug, and the black meter probe to the
shaft of the guitar chord plug. You have now hooked the meter right
into one pickup. (remember - this won't work with active electronics).

--------------------------------
Sanity check
--------------------------------
6. You should see that the meter reads somewhere between 5K ohm (for
older single coil pickups) to 18K ohm (for the most nasty high-output
humbucker pickups). That is good. If this is not true, recheck your
steps, adjust the meter settings, etc. Don't get an ego complex over
the exact DC impedance of your pickups - that is not the point here.
But, for the record, everyone knows that macho guitars have pickups
with *at least* 10K ohm DC impedance Wink.

--------------------------------
Establishing coil phase
--------------------------------
7. Using a magnetic tool (screwdriver, needlenose pliers), gently tap
a pole piece of the coil/pickup. Note that the meter needle will move
*very slightly* either to the left or to the right when you tap the
pole piece, and then drop back to its original position. Repeat until
you are absolutely sure of the exact direction of movement that the
actual tap causes and make a note of the direction.

If you get no meter movement:
a) try another setting of the ohm-meter (1K or 10K)
b) be sure you have good meter connections
c) tap the pole piece a little harder
d) if the pickup is in the guitar, make sure volume is maxed
e) if the pickup is in the guitar, make it is the only selected pickup

If you have a humbucker with 4 wires, you can use this procedure to
identify which coil is attached to which pair of wires so that you can
position the humbucker appropriately if you are using more complex
switching schemes where you care about the orientation of each coil.
Obviously, if the magnetic tap doesn't cause any meter movement, the
meter is attached to the wrong coil wires (so tap the other coil pole
pieces), or something is broken.

Notice that if you reverse the connections of the meter, the direction
of meter movement is reversed. As such, let's establish a convention.
Find the connection orientation that results in a clockwise meter
movement. Let's call the coil wire attached to the red meter probe +,
and let's call the other coil wire -. This is just a convention, like
all +/- electrical conventions.

If your alligator clips had a lot of resin on them, at this time,
perhaps you should write down which color wire was attached to the red
probe, and which color wire was attached to the black probe. We are
going to repeat this for all of your coils and you are going to have
to remember it.

8. Establish the coil phase convention for all of the pickup coils.

--------------------------------
4-conductor Humbucker
--------------------------------

9. If you do not have a 4 conductor humbucker, skip this.

Again, refer to the Stewart-MacDonald's wiring color code FAQ as the
ultimate reference. However, if you have some odd pickup, create your
standard humbucker wiring configuration as shown below:

If this is one of the coils with the + and - convention shown:

+ --OOOO-- -

then connect the - of the two coils in series.

+ --OOOO---OOOO-- +

You now have a standard humbucker with the two + wires unconnected
waiting be be wired into your guitar.

If I am wrong about this folks (and there is a very real chance that I
am), please inform me! One test, obviously, is to listen to this
pickup alone, not in combination with other pickups. If it is thin
and weak sounding, then I am wrong! Instead, you should connect the -
of one coil to the + of the other coil. One of those two
possibilities will result in the full-bodied humbucker sound.

Now, using the two unconnected wires of the standard humbucker,
re-establish its phase convention. We need a + and a - so we know how
to connect this with other pickups, and I am leaving room for the
possibility that I am mistaken about the proper method to connect two
coils into a humbucker.

This sort of trial and error is often necessary with unknown pickups,
and I regret any confusion I might cause until I get some feedback.

--------------------------------
Bringing all pickups together
--------------------------------

10. Once the phase convention of all pickups is established, we get
in-phase pickup coil combinations by connecting the +s together, and
all -s together in parallel (the typical way of connecting multiple
pickups):

+ --OOOO-- - Pickup 1
| |
| |
+ --OOOO-- - Pickup 2

A parallel out-of-phase pickup coil combination is made by connecting
a + with a -.

- --OOOO-- + Pickup 1
| |
| |
+ --OOOO-- - Pickup 2


A parallel out of phase connection sounds very thin and weak. Robert
Cray-ish and then much less. At high amp volume, it might be good in
some applications. At low volume, it sucks.

There is no notion of a coil being in phase with itself - phase is
always with respect to another coil. A pickup can not be out of phase
with respect to itself.

--------------------------------
Summary
--------------------------------
11. If you find that all pickup taps cause needle movement in the
same direction when you connect/select each pickup separately, then
your wiring is properly phased when you connect multiple coils/pickups
in parallel. When a pair of pickups having opposite needle movement
are connected, they are out-of-phase.

Regards,

T

===========================================================================
Digest of pickup phase articles
===========================================================================
From: tjs@eecs.umich.edu (tim stanley)
Newsgroups: rec.music.makers.guitar
Subject: Re: Strat Pickup Wiring Question
Date: 19 Jul 94 13:19:43
Organization: U of M

In article <30gnh7$5jr@sasuga.hi.com> rogers@sasuga.hi.com (Andrew Rogers) writes:

>How do you tell if a pickup is reverse wound? I imagine that if it is reverse
>polarity, it will attract another ordinary pickup magnet face-to-face, right.

Yes, it will. If that's not practical - e.g., due to the pickups already
being mounted in a guitar - you can tell with a compass. (I use a hiker's
compass that I picked up at a yard sale, although a dimestore compass is OK.)

Hey - clever idea. Gotta remember this...

I can believe that - as far as I know, neither the Vintage nor Squiers use
an RWRP middle pickup. In the former case, that's for reasons of
authenticity; in the latter case, cost.

Actually, my Korean Squier *did* definitely have RWRP in the middle
position. Audibly so - since, after all, this is a Strat and you can
hear this sort of noise. Just one data point for you though, and I am
not sure about the year of its manufacture (1988/9?).

>I don't notice any more hum in the 1/2 and 2/3 positions for th 5-way either.

No, but with the RWRP you'd notice a lot less.

Exactly!
---------------------------------------------------------------------------

nice article sebab tu copy.
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PostPosted: Mon Oct 08, 2007 12:37 am    Post subject: Reply with quote



Joined: 05 Jan 2006
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finally after a long wait, dpt gak pinjam kamera

and snapped a few pics of what bro ultraman helped me out with
a full shielding, all of which he did for free.. Very Happy
cant say thanks enough though.











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