Author Topic: Where Can I Buy a ALUMINUM Casing (for DIY amplifier)? (Read 23023 times)

ASCAS · « **on:** Oct 26, 2012 at 10:37 PM »

I've started making HiFi integrated amplifiers this year. Two of my finished ones are cased in a plastic enclosure from "Alexan", to be specific the other one is a TDA7394 based (Class AB-A, 2x30w) amplifier and the other one is a Dual - LM3886 (Class AB-A, 0.03%THD, 2x68Watt) amplifier. The LM3886 heats up a lot that's why I recycled a cooling fan & heatsink from an old Intel processor.

Now I'm working on a 2x100w HiFi amplifier (0.2%THD), this time it's a MJ15015 & MJ15016 based amplifier. I also have a TDA1524 tone control and a NE5532 phono preamp to work with the amp. I'm afraid that transistor amplifiers heat-up pretty fast, compared to the IC based ones, so I thought of using an ALUMINUM casing instead. The plastic ones could melt.

Where can I buy a decent Aluminum amplifier casing within the Philippines? Looking for a price below P2,500. $:-\$ I would appreciate the help!

karloff · « **Reply #1 on:** Oct 27, 2012 at 09:04 AM »

wala ka makukuhang alum casing na katulad jan sa picture mo locally na 2.5k unless used na.
kung sheet metal naman, marami po jan sa raon na 2U at 3U size pre-fab na.

kung craftsmen ka, less than 1.6k pwede ka bumili ng china-made na power amp.yung meron lcd o led indicator yung front bezel nya. kalasin mo main amp non at pwede mo i-integrate yung diy amp mo o kahuyin mo na lang ang casing.

ASCAS · « **Reply #2 on:** Oct 27, 2012 at 09:25 AM »

Quote from: karloff on Oct 27, 2012 at 09:04 AM

wala ka makukuhang alum casing na katulad jan sa picture mo locally na 2.5k unless used na.
kung sheet metal naman, marami po jan sa raon na 2U at 3U size pre-fab na.

kung craftsmen ka, less than 1.6k pwede ka bumili ng china-made na power amp.yung meron lcd o led indicator yung front bezel nya. kalasin mo main amp non at pwede mo i-integrate yung diy amp mo o kahuyin mo na lang ang casing.

Thanks! Pero kung papataasin pa po ba sa mga P4,000-5,000 meron po bang mabibili na aluminum casing sa raon.

ATJr. · « **Reply #3 on:** Oct 27, 2012 at 02:20 PM »

online here: http://www.goodcomponent.com/

sientobente · « **Reply #4 on:** Oct 27, 2012 at 02:43 PM »

I just read your site. It's impressive for a 2nd year HS student.

I never got to learn much from my electronics class in dbti makati though

back to the topic, try a local metal fabricator near your place, yung gumagawa ng mga food stands. I guess they can fabricate an enclosure based on your design.

ATJr. · « **Reply #5 on:** Oct 27, 2012 at 02:53 PM »

pm mo rin si skyjam, member sya dito....meron syang 2U casings...

rascal101 · « **Reply #6 on:** Oct 27, 2012 at 03:41 PM »

Sir TonyT,

Naka order ka na ba sa goodcomponent.com? Hindi ba may min order ex 100pcs? Hirap mag-commit ng ganyang karami at paano ma-check kung ok iyung quality? Hirap kapag na-ship na sa iyo tapos may mga defects pala.

Kaya ko ito nasabi, bumili kami dito sa Shenzhen ng 4pcs aluminum casing. Sa unang tingin ang ganda pero noon busisihin ko pagdating sa tirahan namin dami palang mga scratch.

ATJr. · « **Reply #7 on:** Oct 27, 2012 at 04:27 PM »

yes, i ordered about $100 worth of tube sockets from them, no hassle so far.....

pwede ba jan yung bare aluminum, pag napowdercoat kasi, makinis na sya, walang dings ang mga chassis...

rascal101 · « **Reply #8 on:** Oct 27, 2012 at 04:45 PM »

Wala akong alam na supplier ng bare aluminum lang. Baka purchasing dito sa office namin may alam. Tanong tanong ako. Inform kita.

ASCAS · « **Reply #9 on:** Oct 27, 2012 at 06:32 PM »

Quote from: TonyT on Oct 27, 2012 at 04:27 PM

yes, i ordered about $100 worth of tube sockets from them, no hassle so far.....

pwede ba jan yung bare aluminum, pag napowdercoat kasi, makinis na sya, walang dings ang mga chassis...

Ok lang po yung unpainted/bear aluminum. Pero mga magkano po kaya aabutin :/

ATJr. · « **Reply #10 on:** Oct 27, 2012 at 06:45 PM »

you can go the T.Alonzo in binondo, there are a lot of tin smiths there....makeup a drawing of the chassis you like, i go to Unity metals a lot, i use gage16 aluminum most of the time....look at my work here to give you an idea...

qguy · « **Reply #11 on:** Oct 28, 2012 at 10:33 AM »

Speaking of aluminum, where can i get a 17inch x 3 inch x 5 mm na aluminum

edrel sison · « **Reply #12 on:** Oct 28, 2012 at 10:41 AM »

Quote from: qguy on Oct 28, 2012 at 10:33 AM

Speaking of aluminum, where can i get a 17inch x 3 inch x 5 mm na aluminum

aluminum power, T. Alonzo st. in binondo, just near aranque market. they are being sold in ft. so take 2 and cut to the size you need.

JojoD818 · « **Reply #13 on:** Oct 28, 2012 at 10:53 AM »

Try mo sa Decibez sa Florentino Torres... yan yun shop na nagbebenta ng amp kits na ginagaya sa elab...

karloff · « **Reply #14 on:** Oct 28, 2012 at 11:11 AM »

Quote from: JojoD818 on Oct 28, 2012 at 10:53 AM

Try mo sa Decibez sa Florentino Torres... yan yun shop na nagbebenta ng amp kits na ginagaya sa elab...

closed na po decibelz sir.

JojoD818 · « **Reply #15 on:** Oct 28, 2012 at 11:38 AM »

Quote from: karloff on Oct 28, 2012 at 11:11 AM

closed na po decibelz sir.

what? di nga? sabagay last first Friday pa ako nadaan dun...

karloff · « **Reply #16 on:** Oct 28, 2012 at 12:01 PM »

Quote from: JojoD818 on Oct 28, 2012 at 11:38 AM

what? di nga? sabagay last first Friday pa ako nadaan dun...

matagal nang closed sir a? june pa ata. naka ilang beses na ako pabalik balik dun.beauty shop o drug store na pumalit sa pwesto nila dun malapit sa fire station.dont know kung me iba pa silang pwesto bukod dun.

actually meron silang binebenta na magandang klase ng casing.di katulad ng sa deeco na manipis.
bibili rin sana ako sa project ko.

JojoD818 · « **Reply #17 on:** Oct 28, 2012 at 12:05 PM »

Quote from: karloff on Oct 28, 2012 at 12:01 PM

matagal nang closed sir.naka ilang beses na ako pabalik balik dun.beauty shop o drug store na pumalit sa pwesto nila dun malapit sa fire station.dont know kung me iba pa silang pwesto bukod dun.

yan sir yun nasa harap ng Watson's dati right? Yun Watson's ang alam ko lumipat na pero last time I drove pass F. Torres bukas pa sila. oh well, check ko na lang pag nadaan ako ulit...

jlester87 · « **Reply #18 on:** Oct 28, 2012 at 12:09 PM »

Kagagaling ko lang kahapon dun, bukas pa naman sila

Pag galing ng raon, unang kanto sa kaliwa ng roks (bago mag ongpin), then tabi sila ng barbershop

karloff · « **Reply #19 on:** Oct 28, 2012 at 12:12 PM »

ah ok sir.try ko din pag punta ko raon. atleast good news yan na open pa sila.

JojoD818 · « **Reply #20 on:** Oct 28, 2012 at 12:14 PM »

Quote from: jlester87 on Oct 28, 2012 at 12:09 PM

Kagagaling ko lang kahapon dun, bukas pa naman sila dugyot nga lang shop nila...

ayun, yan na nga yun shop na sinasabi ko... yun matindi ang alikabok...

JojoD818 · « **Reply #21 on:** Oct 28, 2012 at 12:16 PM »

Quote from: jlester87 on Oct 28, 2012 at 12:09 PM

Pag galing ng raon, unang kanto sa kaliwa ng roks (bago mag ongpin), then tabi sila ng barbershop

Tama... ano na nga yun Inn sa harap nila?

Pero malamang walang chassis na tinda dun...

ATJr. · « **Reply #22 on:** Oct 28, 2012 at 12:24 PM »

Quote from: qguy on Oct 28, 2012 at 10:33 AM

Speaking of aluminum, where can i get a 17inch x 3 inch x 5 mm na aluminum

Sulimco metals, cm recto corner benavidez street...

karloff · « **Reply #23 on:** Oct 28, 2012 at 12:27 PM »

hehehe! nabili mo na yata sir?

3 klase yung naka display nila dun sa pinaka taas ng salamin na estante.
yung 2 meron ng mga butas sa harap at likod ng bezel. yung 1 naman yung ang blank lang.

juanbote · « **Reply #24 on:** Oct 29, 2012 at 09:24 AM »

Challenge yourself by designing your own aluminum chassis.
Pwede ka mag pa custom sa RTG sheetmetal fabrication sa EDSA- corner Aurora (Tramo) st. sa Pasay.

Tiptop sheet metal fabricator sa Soler st. near corner T. Alonzo st.

And for finishes, pwede sa Swan aluminum sa Mandaluyong and powder coating sa Chromedazzler sa Cubao.

ATJr. · « **Reply #25 on:** Oct 29, 2012 at 10:07 AM »

Quote from: juanbote on Oct 29, 2012 at 09:24 AM

Challenge yourself by designing your own aluminum chassis.
Pwede ka mag pa custom sa RTG sheetmetal fabrication sa EDSA- corner Aurora (Tramo) st. sa Pasay.

Tiptop sheet metal fabricator sa Soler st. near corner T. Alonzo st.

And for finishes, pwede sa Swan aluminum sa Mandaluyong and powder coating sa Chromedazzler sa Cubao.

john, meron kang contact numbers ng RTG? at SWAN?
merong powder coating shop sa santolan pasig, accesible sya via marcos highway....Golden Diamond Pwder Coaters....645-4624....

juanbote · « **Reply #26 on:** Nov 03, 2012 at 07:24 PM »

Hi Tony,

Try to google Swan aluminum philippines and RTG sheet metal fabrication.

May website ang RTG. And alam ko sa no. 14 Arayat st. Ang location ng Swan aluminum.

John

ATJr. · « **Reply #27 on:** Nov 04, 2012 at 07:53 AM »

thank you john, found some links, http://www.philippinecompanies.com/companyprofile/58937/swan-aluminum-and-allied-products-inc- and http://www.rtgsheetmetal.com/

Ron_21 · « **Reply #28 on:** Nov 04, 2012 at 10:32 AM »

mukhang maganda magpagawa ng case sa rtgsheetmetal. may powder coating na rin sila.

pde kayang per piece ang pagawa sa knila?

ATJr. · « **Reply #29 on:** Nov 04, 2012 at 10:39 AM »

haven't been there yet, sana tumatanggap sila ng kahit 1pc, pero i am sure mahal pag isahan...