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Author Topic: RMS 400watts  (Read 8989 times)

Offline jomargi

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RMS 400watts
« on: December 09, 2009, 06:25:37 PM »
mga sir may gingawa ako amplifier d2 sa work ko,, RMS 400watts KUNO???? gumamit ng 2n3055 (6pcs per channel) na output sir,, may ugong sa speaker,,,,, ung tunog e hmmmmmmmmmmmmmmm;D ;D ;D
 khit wala pang nakaagay na input at speaker pala ang nakalagay sa output my humming na khit naka zero volume po,,, pero nag nagpapattugtog naman ok naman at malakas din,, un nga lang ung humming continues din nakakairita lang sa tenga minsan

action taken:

nagcheck nako ng mga power  trans. for leaky at shorted GOOD naman
nacheck nako sa output wala 0.02dcv

eto palang nagagalaw ko bossing
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RMS 400watts
« on: December 09, 2009, 06:25:37 PM »

Offline I n s i d e r 2010

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Re: RMS 400watts
« Reply #1 on: December 09, 2009, 06:36:43 PM »
may tone control bang nakakabit? try u alisin ang tone control

pag nawala ang humming sure kulang ang filtering mo tone control o bka ndi regulated ang supply

pag may humming parin kahit walang tone control eh magdagdag ka ng filter sa supply ng ampli mo.
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Re: RMS 400watts
« Reply #1 on: December 09, 2009, 06:36:43 PM »

Offline jiggins20

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Re: RMS 400watts
« Reply #2 on: December 09, 2009, 07:11:00 PM »
ano po ba power supply mong gamit?ilang  microfarad filter caps gamit mo?
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Re: RMS 400watts
« Reply #2 on: December 09, 2009, 07:11:00 PM »

Offline jomargi

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Re: RMS 400watts
« Reply #3 on: December 10, 2009, 12:04:53 AM »
yes sir my tone control po,, mataas ung caps filtere nito,, 40k microfarad,,, cgi sir try ko bukas ayusin
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Re: RMS 400watts
« Reply #3 on: December 10, 2009, 12:04:53 AM »

Offline danny

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Re: RMS 400watts
« Reply #4 on: December 10, 2009, 01:37:38 AM »
assuming ok ang power supplies mo
check mo din groundings mo
or wirings, baka naman may loose connection lang.
mag visual check ka muna bago ka mag dive  :)
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danny

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Re: RMS 400watts
« Reply #4 on: December 10, 2009, 01:37:38 AM »

Offline nucleus

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Re: RMS 400watts
« Reply #5 on: December 10, 2009, 01:50:17 AM »
Quote from: jomargi on December 10, 2009, 12:04:53 AM
yes sir my tone control po,, mataas ung caps filtere nito,, 40k microfarad,,, cgi sir try ko bukas ayusin

check nyo sir baka leaky na yung kahit isa lang sa filter capacitor ng supply ganyan ang effect :)

at tama si sir danny visual inspection pala muna bago magdive ;D baka nakalutang lang yung perlas sa tubig kapag nagdive ka without knowing na nakalutang lang yung perlas baka mapunta pa sa malalim ;D
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Offline danny

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Re: RMS 400watts
« Reply #6 on: December 10, 2009, 02:05:32 AM »
nyahahaha
ano kayang perlas un?  ;D ;D ;D
mukhang masarap ang malalim ah  ;D ;D ;D
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Offline jomargi

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Re: RMS 400watts
« Reply #7 on: December 10, 2009, 04:42:54 AM »
@ sir nucleus @ danny

cgi sir visual check muna ako,,, d kopa nabaklas ung board e para macheck ung board kung may mga poor solder,,, bukas sir subaybayan nio,, salamat sir tanong ko lang,,, kc ung papalitan ko na caps na filter ay 37000uf/75v,,, e ang ipapalit ko ay 10000MFD/95v ung M ba ay milli??? or micro din??? kc un ang nakaagay na unit sa caps,,,,e d ang katumbas non ay 1FARAD??? tama po ba??
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Offline Woots29

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Re: RMS 400watts
« Reply #8 on: December 10, 2009, 09:59:58 AM »
micro din yan

ang 1 farad 95v volts ay isang drum kalaki ;D ;D ;D

subskraybing....
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Offline I n s i d e r 2010

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Re: RMS 400watts
« Reply #9 on: December 10, 2009, 12:45:08 PM »
korek si boss woots!

depende nga lang kung todo compressed ung pagkakalagay,cguro mga isang pitsel  ;D ;D ;D ;D
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ang PIKON ay laging TALO,tandaan nyo po yan mga kapatid. IRESPETO ang bawat isa!
ang PANLALAIT sa kapwa ay isang kasalanan na
pagbabayaran mo rin balang araw!

Offline Woots29

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Re: RMS 400watts
« Reply #10 on: December 10, 2009, 01:08:18 PM »
;D ;D ;D
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Offline tony

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Re: RMS 400watts
« Reply #11 on: December 10, 2009, 07:51:09 PM »
Quote from: jomargi on December 09, 2009, 06:25:37 PM
mga sir may gingawa ako amplifier d2 sa work ko,, RMS 400watts KUNO???? gumamit ng 2n3055 (6pcs per channel) na output sir,, may ugong sa speaker,,,,, ung tunog e hmmmmmmmmmmmmmmm;D ;D ;D
 khit wala pang nakaagay na input at speaker pala ang nakalagay sa output my humming na khit naka zero volume po,,, pero nag nagpapattugtog naman ok naman at malakas din,, un nga lang ung humming continues din nakakairita lang sa tenga minsan

action taken:

nagcheck nako ng mga power  trans. for leaky at shorted GOOD naman
nacheck nako sa output wala 0.02dcv

eto palang nagagalaw ko bossing

malayo sa 400w yan kung 2n3055 ang output trannies........meron kang schematic? mahirap itroubleshoot kung walang schematics....
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Offline jomargi

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Re: RMS 400watts
« Reply #12 on: December 10, 2009, 08:27:07 PM »
ngeeekk!!!!! naloko ako dun ha,,, sabi ng pinagbilhan ko sa raon e 1 farad dw un kaya binili ko kc 600 ung 2 piraso e d naman gaano kalakihan,,,, walang hiya nayari ako dun ha,,,,,,
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Offline Mhavskie

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Re: RMS 400watts
« Reply #13 on: December 10, 2009, 10:24:57 PM »
Ibato mo sa pinag bilhan mo, BTW, ask ko lang mapapaabot ba ng 400watts kung 2n3055 lang ang gamit? Or depende kung ilan ang gagamitin? ;D
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Offline nucleus

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Re: RMS 400watts
« Reply #14 on: December 10, 2009, 10:33:35 PM »
Quote from: Ω Mhavskie Ω on December 10, 2009, 10:24:57 PM
Ibato mo sa pinag bilhan mo, BTW, ask ko lang mapapaabot ba ng 400watts kung 2n3055 lang ang gamit? Or depende kung ilan ang gagamitin? ;D

90W ata itong 2N3055 :D
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Offline tony

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Re: RMS 400watts
« Reply #15 on: December 11, 2009, 07:41:18 AM »
Quote from: Ω Mhavskie Ω on December 10, 2009, 10:24:57 PM
ask ko lang mapapaabot ba ng 400watts kung 2n3055 lang ang gamit? Or depende kung ilan ang gagamitin? ;D

with rails of +/- 30 volts, 48 watts into 8ohms, 96watts into 4ohms, 192watts into 2ohms, 384 watts into 1ohm......
with 48watts you need 1 pair with 8ohm load, 96watts into 4 ohms you need 4 pairs, into 2ohms you need 8 pairs, into 1 ohm you need 16 pairs......
these are minimun requirements....
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Offline I n s i d e r 2010

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Re: RMS 400watts
« Reply #16 on: December 11, 2009, 09:34:57 PM »
korek,habang dumarami ang output xsistor mas lumalakas ang sound output kaso u need enough supply!

ang problema nga lang pag kuwenta mo ang gastos eh mas malaki,
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ang PIKON ay laging TALO,tandaan nyo po yan mga kapatid. IRESPETO ang bawat isa!
ang PANLALAIT sa kapwa ay isang kasalanan na
pagbabayaran mo rin balang araw!

Offline danny

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Re: RMS 400watts
« Reply #17 on: December 12, 2009, 03:05:04 AM »
Tulad nito dami transistors
8 trannies per channel
ito ang nasa bench ko ngayon
just finished working on it
200W stereo 8 ohms
700W Mono 8 ohms
400W stereo 4 ohms
1200W Mono 4 ohms






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Offline tony

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Re: RMS 400watts
« Reply #18 on: December 12, 2009, 05:03:17 AM »
Quote from: kagawad on December 11, 2009, 09:34:57 PM
habang dumarami ang output xsistor mas lumalakas ang sound output kaso u need enough supply!

this is a misconception, perhaps what you really mean is that, "habang dumarami ang output xsistor mas lumalakas ang output stage dahil sa mas malaki ang SOA, safe operating area ng output stage".

yung malakas na sound, function yan ng volume control setting or input level sa amp mo.

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Offline danny

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Re: RMS 400watts
« Reply #19 on: December 12, 2009, 05:19:12 AM »
plus it can handle better sa lower impedances  ;)
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danny

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Re: RMS 400watts
« Reply #19 on: December 12, 2009, 05:19:12 AM »
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