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DIY pedals - sources

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ultraman_cosmo

Posted: Thu Jun 07, 2007 11:42 am Post subject:

Mod Squad

Joined: 29 Oct 2004
Posts: 1665
Location: Mines resort city

Aha izi,

Benda benda lain biasanya jalan pasar ada.
- aku guna alpha pot taiwan.
- for better one rasanya pot ALPA ceriatone la terbaik.
- socket, jack, cap, resistor, standard chip ic, transistor.
- kalo nak compare cap dan resistor dengan banzai dan mouse maybe tak sesuai.
- Cuma silver mica jer tak der kat jalan pasar.

Yang biasa aku carik kat luar adalah.
- encloser... ne paling murah rasanya effect connection.
- Diod, biasa aku belasah kat ebay...
- mosfet, fet, jfet pun aku belasah kat ebay.
- ic, biasanya ebay juga.
- switch 3dpt aku beli kat effectconnection.
- aku tak syorkan pakai 2dpt kat woh fat, sebab ada clacking pop sound kalo kita gerak gerak spring switch tu. 3dpt tak der masalah tu. terutama blue taiwan.
- inductor wah aku import dari isreal melalui member kat usa. aku tahu kalo aku order direct sure tak lepasnya.
- benda benda part ne pun ada reisue juga.

Delema DIY ne sebenarnya bukan kepada value componen tu, tapi sebenarnya quality barang tu. Cam contoh, kita memang senang jer kalo nak carik poly cap, but the problem quality nya tak consistan. Macam IC juga, TLO72 made in taiwan mana mungkin lebih baik dari TLO72 texes instrument. Kalo korang jumpa benda

Benda yang aku memang usar source bagus.
- encloser aluminium.
- 3dpt foot switch
- IC burr brown or TI NE, OPA, ST
- good diod terutama germinium... aku punya 1n34n memang syok berbanding yang beli jalan pasar. spec sam tapi quality lain.

Quote:

Apa nama single tube pedal yang ko tgh siapkan tu? Pernah dengar shaka tube tak? Macam menarik je tube pedal tu.

tak der nama lagi... maybe Serama chik or serati duck.... hahhaha

Aku dah buat shaka tube. A++. cuma ko kena alter balik value tertentu utk jenis music nak main. Original too bright macam tone country music. Even deferent jenis tube pun ia bunyi lain. cam 12ax or 12au or 12at dan brand.
_________________
Maiden, loudness, ACDC, black sabath, deep purple, jimmi and vinnie moore

And Now all jazz.

browndog2woof

Posted: Thu Jun 07, 2007 11:57 am Post subject:

Mod Squad

Joined: 10 Nov 2006
Posts: 1357

IZZI wrote:

awal tahun lepas aku check banzai lagi murah dari tpt lain..tp utk resistor, capacitor, jack mmg Jalan Pasar la yg termurah.

fretted bro,

kat bonsai sg. buloh lagi murah.... dia jual gak pokok anggur..

woof!

keysersoze

Posted: Thu Jun 07, 2007 12:20 pm Post subject:

Joined: 21 Aug 2006
Posts: 142

ultraman_cosmo wrote:

Quote:

Apa nama single tube pedal yang ko tgh siapkan tu? Pernah dengar shaka tube tak? Macam menarik je tube pedal tu.

UIHH..myk gak beli kat luar.. kene berguru ngn bro ultramen nih..myk lgi nk kene blaja..

IZZI

Posted: Thu Jun 07, 2007 12:40 pm Post subject:

Joined: 11 Dec 2004
Posts: 3447
Location: Melbourne, Australia

tunggu Ultraman Cosmo buat effect sendiri, takde clone dgn mana2 pedal pun. Made and design 100% by Ultraman COsmo, made in Malaysia.

Aku tau dia dah dekat dah tu.. korang stand by je budget.. brg keluar ke, beli terus hehehe..
_________________
Gelanggang guitar : http://guitarden.starahead.com

keysersoze

Posted: Thu Jun 07, 2007 12:53 pm Post subject:

Joined: 21 Aug 2006
Posts: 142

IZZI wrote:

wow !!! nice... tabik springg er......baguih2..harap2 leatk er name kemalaysiaan skit er....cam compressor nasi himpit ke, korus air manis kee.. my idea le. introduce BM to world wide..like the japs and the germany.. harap2 la..

IZZI

Posted: Thu Jun 07, 2007 1:10 pm Post subject:

Joined: 11 Dec 2004
Posts: 3447
Location: Melbourne, Australia

keysersoze wrote:

IZZI wrote:

ye betul.. aku mmg sokong nama Malaysia. Tak payah guna nama English. Letak la nama pedal contohnya Durian ke.. hehehe.. (sound pedal tu lemak berkrim, pekat dan sweet) huhuu..
_________________
Gelanggang guitar : http://guitarden.starahead.com

GryMlock

Posted: Thu Jun 07, 2007 1:50 pm Post subject:

Joined: 24 Nov 2003
Posts: 3699
Location: Agombak Ago go!

haha compressor nasi himpit! best gila nama!
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radioflyer

Posted: Thu Jun 07, 2007 2:41 pm Post subject:

Joined: 28 Sep 2005
Posts: 280

kasi nama brand COSMIC PEDAL lh bro..

memandang kn nama ultraman cosmo kn..?

cosmic ok pe. Smile

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: Overhead the albatross hangs motionless upon the air :

browndog2woof

Posted: Thu Jun 07, 2007 2:43 pm Post subject:

Mod Squad

Joined: 10 Nov 2006
Posts: 1357

fretted bro,

cosmo petai overdrive pro... kaler dah sama tu.... cuma nak tambah satu knob lagi.... smell.... ha ha ha ha!

woof!

ultraman_cosmo

Posted: Thu Jun 07, 2007 3:01 pm Post subject:

Mod Squad

Joined: 29 Oct 2004
Posts: 1665
Location: Mines resort city

Quote:

Tinggi sangat harapan tu... hhehehhe.
Sebenarnya aku punya progress banyak lembap, yer lah kerja melambak, nak buat research pun slow. Sampai kat umah pun lom tentu ada masa nak godek gear. Baru 2 bulan aku kecimpong ceta tube ne... takan trus master. bias amp pun terkial kial... hhehehehe. Tulah, masa dulu masa belajar fizik letrik aku selalu ponteng, sekarang basic tak kukuh.

Tapi sebenarnya aku terimakasih la kat kengkawan pasal diorang senang nak dibawak berbincang benda benda gua tak faham. Sebenarnya lah, pasal litar kita boleh add or clone or campo campo or modify dari circuit yang dah ada. Tapi sebenarnya ceta utama adalah sedap ker tak sedap, or sesuai ker tak sesuai. Taknak la buat pedal blues bunyi metal plak or overdrive jadi fuzz. Ia semacam ada satu standard utk tone refrence sebegini. Aku ne bukan jenis carik satu tone utk sendiri tapi carik setiap tone utk setiap genre musik.

keysersoze,
Ada diagram distortion utk tube tak. Aku tak fikir 12v boleh drive distortion tube kecualikah dengan bantuan oamp or jfet or mosfet circuit. kalo ader yahoo add aku, ultraman_cosmo@yahoo.com or ultra_cosmo@hotmail.com msn. boleh ceta panjang.

Kalo korang nak join ceta ceta DIY ne, pm jer aku. boleh kongsi pengalaman. Biasanya every moning aku akan checj pm. dan delete aper yang patut sebelom inbox penuh... hahahahhaha. DIY nyer guitarist biasa tau banyak pedal dan amp. hheheheheh

Quote:

Take note, korus air manis n compressor nasi himpit.

Quote:

cosmo petai overdrive pro... kaler dah sama tu.... cuma nak tambah satu knob lagi.... smell.... ha ha ha ha!

knob smell ne nak letak aper boss. Split 9- 18v sampai capasitor bau hangit. Aku tau bau capasitor tantanlum terbakar banyak tajam oooooo.
_________________
Maiden, loudness, ACDC, black sabath, deep purple, jimmi and vinnie moore

And Now all jazz.

keysersoze

Posted: Thu Jun 07, 2007 3:29 pm Post subject:

Joined: 21 Aug 2006
Posts: 142

GryMlock wrote:

haha compressor nasi himpit! best gila nama!

thankss bro.. mende ni dah lame aku fikir2 kan...imagine... tak gune kite kejar mat2 'western' tu...they got their own standard... kiter set our own standard...

byk lagi..dalam pale otak aku...
gambus pakai pikap homemade..masuk tube amp...masuk tube distortion..keluar music JAVAjazz....

tunggu saje lah.. inprogress..separuh dah jln..

IZZI

Posted: Thu Jun 07, 2007 3:36 pm Post subject:

Joined: 11 Dec 2004
Posts: 3447
Location: Melbourne, Australia

salah tpt la ko tanya farid.. pi kat tpt aron sana berlambak tube circuit.. Tube wah pun ada aku jumpa..
_________________
Gelanggang guitar : http://guitarden.starahead.com

ultraman_cosmo

Posted: Thu Jun 07, 2007 3:52 pm Post subject:

Mod Squad

Joined: 29 Oct 2004
Posts: 1665
Location: Mines resort city

IZZI wrote:

salah tpt la ko tanya farid.. pi kat tpt aron sana berlambak tube circuit.. Tube wah pun ada aku jumpa..

Sebenarnya aku dah copy hampir semua benda dalam site dia. Cuma just nak dapat source dari local. Mana tau dapat idea baru. biasala FAQ dan kengkawan ne lagi senang berbincang.

Folder schematic pedal jer dah 100mb tau... hahhaha. nak bukak jer tak menyempat. Just kat forum amp kengkadang ada trick yang bagus utk aply kat pedal.
_________________
Maiden, loudness, ACDC, black sabath, deep purple, jimmi and vinnie moore

And Now all jazz.

keysersoze

Posted: Thu Jun 07, 2007 6:55 pm Post subject: ...

Joined: 21 Aug 2006
Posts: 142

ultraman_cosmo wrote:

IZZI wrote:

salah tpt la ko tanya farid.. pi kat tpt aron sana berlambak tube circuit.. Tube wah pun ada aku jumpa..

bro..sini jer le..aku try discibe..scematic

http://www.ax84.com/static/corepreamps/Simple/AX84_Simple_Preamp_Schematic.pdf

first..transformer kene tempah..aku skang pakai trans lame..mmg utk tubes amp punye..aku rase ko ble tempah kat nik..

primary : 230v (masuk), secondary a)130v,50mA b)12v 600mA
130v kalu ade centertap, ground the centertap. same as 12v.

130v 50mA utk b+ power supply, 12v 600mA utk filament supply. for the heater. sebab 12v ,nak tukar ke dc. biase tube amp pakai AC..aritu diskusi ngn nik from his exp. not neccecery to use DC for filement supply ...for tube amp..but reserch skit...for stmpbox ..ill go for DC.
kalu bro nak pakai AC pn ok..try le..manetau jadi..aku try ,hum dier aku takble thn..

b+

b+ power supply kene tukar ke DC first, pakai diod 1n007. 2 biji kalu ade centertap.(ground your centertap.) pastu filter pakai e-caps 33uf160v ,beware the polarity, then the b+ sambung kat b+5 dlm schem...the plate of the tubes.pin no 6 and satu.
kalu 130v tu tarak centertap pn ok,pakai 4 biji diodes,1n4007,
resistor 100k dlm 100k tuka ke 300~400k ,

diod yg kat 12v tu 1n4004..4 biji,sbb tarak centertap.
rx value kene adjust, v=ir , so brape voltage drop yg nak, r=v/i

for b+ around 140~160v ok le, filament 6.3v

then dari kaki 6 tubes sambung coupling caps 0.02uf200v(tonestack tu abaikan) trus pigi pots 500k, kaki no1. kaki no 2 pot pigi pin no2 tubes.
the next stage pun same, dari pin no 1 coupling caps 0.02uf200v sambung gi pots 500k, kaki 1, kaki 2 pots pigi jack keluar.

kaki no 3 dan 8 tuh set bias tubes...cathode bias..sumer preamp chatode bias..for stombox , mostly review around 15k(1st stage) and 5k(2nd stage)..try other value to change sound character...lebe kurang camni le.

KALU tak ble masuk link, masuk ax84-core project-corepreamp-simplepreamp.

12ax7 dual triode..satu biji je dah kire 2 stage amplify. kalu 2 biji tak taule camne sound.lagi sedap le..cam english muffin tu kot..

Last edited by keysersoze on Fri Jun 08, 2007 9:20 am; edited 1 time in total

danger3s

Posted: Thu Jun 07, 2007 10:15 pm Post subject:

Joined: 30 Oct 2006
Posts: 267
Location: Kuantan

thx bros for all teh info. Memang byk projek in the future yg aku dah plan nak buat. Shaka tube tu pun menarik jugak. Semua ni bergantung pada knowledge & experience jugak lah. Kene ada steep learning course sebelum aku lompat masuk design/modify circuit sendiri. Hopefully we can keep the DIY spirit alive & tarik byk lagi user2 lain utk join same. Lagi ramai lagi meriah = lagi byk info boleh kongsi.

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