BOOSTER AMPLIFIER (MONO) using MJ2955

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by dongdaps on Sun Nov 20, 2011 2:00 am

Sir Ultrasonic newbies po ako. nakabili po ako ng 30W bass guitar Amplifier Roland cube-30. Pwede ko po bang ikabit itong booster na ito para maging 100W output? hindi kaya ma apektuhan ang original output frequencies? or kung may kilangan pa akong additional components, ano po kaya ang dapat. Salamat po.

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by mcrommel on Sun Nov 20, 2011 3:38 pm

@ Ultrasonic .. ano po ba kaibahan sa
200 watts output trans4mer w/ secondary
200 watts output trans4mer w/out seondary?
thx

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by 01110011 on Mon Nov 21, 2011 6:34 pm

dongdaps wrote:Sir Ultrasonic newbies po ako. nakabili po ako ng 30W bass guitar Amplifier Roland cube-30. Pwede ko po bang ikabit itong booster na ito para maging 100W output? hindi kaya ma apektuhan ang original output frequencies? or kung may kilangan pa akong additional components, ano po kaya ang dapat. Salamat po.
ok rin total mataas ang distortion pwede dagdag effect

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by popcorn on Tue Nov 22, 2011 4:23 pm

mcrommel wrote:@ Ultrasonic .. ano po ba kaibahan sa
200 watts output trans4mer w/ secondary
200 watts output trans4mer w/out seondary?
thx

ako pud ani mga masters ngita ko clarification between the two, w/ and w/o secondary.

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by mcrommel on Fri Nov 25, 2011 8:32 pm

naa man gug uban transformer ang output naay secondary.. naay
0-4-8-16 ohms sa pikas terminal sa output transformer..

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tambay

Post by jeffrey.fabian10 on Mon Nov 28, 2011 4:06 pm

tambay going to cry going to cry

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by samiel on Mon Nov 28, 2011 9:17 pm

gaano ba kalaki yung baterry ng motor mo? baka d kaya ng battery mo kaya humihina agad yung sound...may u box ba motor mo? try mo bnk bk-700...tama lang sa batery ng motor...usb player,auxillary in,may fm,stereo na cya...75watts per channel,may remote control pa,ganda sound nya...

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naa ko nakitan uban 4 power trans...pwd??

Post by mitch on Thu Dec 01, 2011 10:36 pm

ultrasonicâ„¢ wrote:no need to xplane na yata eto , kahit sino familiar dito most common amplifier circuit kahit sino marunong gumawa nito. magtanong tanong nalang kau or just ask nlng sa forum nato


add trivia nlng BOOSTER amplifier in electronic term are known as a PUSH PULL TYPE amplifier
gitawag na xag push pull its b-coz its hav two power switching transistor na magpuli-puli ug on ug off ... pangutana nganu kinahanglan mn mapalong palong ang operation nga pwde mn naka-on nlng pirme diba? ang tubag ana kay of course kung dli magpalong palong ang operation understood or sabotable na DC out ang labas sa audio output nga dili pwde sa SPEAKER kay masunog xa.. dapat AC signal lng ang iyang ginareceive.. (^_^)

now im xur naa na pud moy pangutana regarding sa power wattage ani.. pila kahay wattage ani? 50W kaha., 100W or mas taas pa?

ang tubag ana kay nagadefende na xa sa inyong power output transformer, kung 50W.. 50W pud ang labas ana.. kung gus2 nimu 100W of course 100W pud ang emng output transformer na gamiton.. but olwayz remember dis kung taas gani ang power output transformer nimu.. u must to add power transistor na MJ2955.. magparallel connection ka.. meaning ang base ikabit sa base, ang emitter ikabit sa emitter, ug ang collector ikabit sa collector ... e.g: kung 100W dapat duha duha ka transistor bawat junction, kung gusto pa jud nimu patas-an dungag na pud kag transistor gets ninyu? kung wala gani just txt me or ask lng mu dre ok (-_-)



SCHEMATIC DIAGRAM

COMPONENT PARTLIST:

2pcs. MJ2955 POWER TRANSISTOR
1pc. 470 ohm 5Watts
1pc. 20 ohm 5Watts
1pc. Audio input transformer 15Watts
1pc. Audio output transformer 50Watts (100W for 100watts operation & add two power transistor)
Aluminum Case & other accesories


PICTORIAL DIAGRAM / WIRING DIAGRAM


FINAL OUTPUT


naa ko nakitan uban 4 power trans.pwd ka mkahimo 4 power transistor og pra sa newbies sama nako pwd ba wla preamp diritso ra sa player..ang supply nga 12v o 24v pwd apil nimo post sa wiring assembly nga pic..advance thnz more power..

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by arkin on Fri Dec 02, 2011 1:04 pm

hindi output trans4mer lng ang ngpa2lakas ng boster,kombinasyon yan ng lahat na psa.input,output,power transistor at suply.hindi mamodify ng output trans4mr ang rated power ng transistor Laughing .ibig sabihin ba,pagnaglagay ka ng 20w transistor,tapos 500w ang output,maging 500w ang boster nyo?MALI!!!khit 200w ang transistor,at 12v ang supply mo,d rin aabot sa peak power ang transistor mo.kya aksaya lng sa pera ang malaking output.

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by arkin on Fri Dec 02, 2011 1:16 pm

mas maganda kong alamin nyo muna kong ano ang rated power at maximum voltage ng tranisitor mj2955,pra magkaideya kyo kong gaano kalaking output ang gmitin nyo.TANDAAN!!hindi output trans4mer ang nagbi2gay ng power!khit wlang output trans4mer,kya pa rin itong mkaproduce ng malakas n sound,bastat may power transistor..TANONG LaNG:hindi nyo pa ba alam yong output tans4merless na boster?

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by popcorn on Fri Dec 02, 2011 2:49 pm

arkin wrote:mas maganda kong alamin nyo muna kong ano ang rated power at maximum voltage ng tranisitor mj2955,pra magkaideya kyo kong gaano kalaking output ang gmitin nyo.TANDAAN!!hindi output trans4mer ang nagbi2gay ng power!khit wlang output trans4mer,kya pa rin itong mkaproduce ng malakas n sound,bastat may power transistor..TANONG LaNG:hindi nyo pa ba alam yong output tans4merless na boster?

meron ka bang schematics ng transformerless na booster sir pahingi naman. tnx

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by arkin on Fri Dec 02, 2011 4:08 pm

sa ngayon dpa ako mkabigay ng schematic diagram.dba taga cebu ka?og naa ka kaila nag school sa CTS,bsin khtag cya nmo.take note:lahi na iya gamit nga input,split sad iya supply.d cya practical gamiton sa batery kay knahang lan ka duha ka batery.kta nka PT22 nga input?dlang ko sure kong preha ba jud na cla og winding.ana nga tpye ang gmiton nmo input.bli duha ang bias.one thing 4 sur:mas kusug ni sa naay output.

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by popcorn on Fri Dec 02, 2011 4:18 pm

arkin wrote:sa ngayon dpa ako mkabigay ng schematic diagram.dba taga cebu ka?og naa ka kaila nag school sa CTS,bsin khtag cya nmo.take note:lahi na iya gamit nga input,split sad iya supply.d cya practical gamiton sa batery kay knahang lan ka duha ka batery.kta nka PT22 nga input?dlang ko sure kong preha ba jud na cla og winding.ana nga tpye ang gmiton nmo input.bli duha ang bias.one thing 4 sur:mas kusug ni sa naay output.

cge bai search lang nya ko ana . matsalams!

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by arkin on Fri Dec 02, 2011 4:31 pm

ok lng 2 power transstr adjust lng sa biasing.pag masyadong mainit ang circuit tumatas ang current kya nagcut-off yong fuse mo.mas importante may cap sa booster,pra ma imphasize ang low frequency or bass.pag maliit kc filter sa booster maging distorted ang sound pag mataas na vol level.

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by mitch on Sun Dec 04, 2011 12:22 am

sir pwd paki post po schematic diag sa 4pcs power trans at paki post din sa wiring asembly..at paano paglagay sa power kng gawing bias ang supply..advance thanks po..

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by arkin on Sun Dec 04, 2011 3:29 pm

preho lng ang wiring sa 2 at 4 power trans,paralel lng yan.dko maintindihan anong ibig mong sabihin gawing bias ang supply.

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by mitch on Sun Dec 04, 2011 11:32 pm

i mean po pala ano gawin diagram o wiring system kapag bias power supply..kc sabi ng iba yan daw gagamitin pang stereo.baka mayron po kayo jan paki post nlng po schem diag stereo booter amplifier at wiring design .tnx po advance..

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by arkin on Tue Dec 06, 2011 10:11 am

simple lng yan,dba alam mo na gawin mono?dagdagan mo na lng ng isa pang mono,stereo na yan.ang supply ng stereo at mono ay preho lng.dko pa rin magets yang bias power supply mo.baka ibig mong sabihin,SPLIT SUPPLY!

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by mitch on Tue Dec 06, 2011 9:23 pm

nka gawa na po ako mono pro mean ko po sa supply d ba 12v sa mono sa isa rin mono ibang supply po ba o isang 12v at Split o Bridge po na supply gagamitin..senxa po newbie p kc ako..

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by arkin on Wed Dec 07, 2011 1:44 pm

yong supply mo dati,yon na rin ggamtin mo.bale share lng cla sa supply mo.kong 10 amperes supply mo,sapat na yan pra sa dalwang booster.kong 6amp lng dagdagan mo na lng diode.bale paralel lng sa dati.kng mas mataas amperahe supply mo ok na wlang idagdag.magkano ba supply mo?(volts at ampere)

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by mitch on Thu Dec 08, 2011 11:47 pm

paano pag 1 amper lng o less ang power supply ko..pwd mo po ma post ang diagram at wiring assembly..at ano gagamitin kind of power supply full o bridge type po o ano mabuti advice mo??senxa po mydo newby lng..

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by arkin on Fri Dec 09, 2011 8:29 am

nko ang liit nman nyan!d kya ng 1 amp ang booster.3 amp ang minimum suply ng booster,pro limited lng volume level mo.mas maganda 10 amp ptaas!full wave klangan mo sa booster.pwede ang bridge,pre syang lng ang negative terminal,kc d mo magamit to.d mo pa alam power supply?basic lng to sa electronics ah!

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by Electro on Fri Dec 09, 2011 10:31 am


master arkin. gusto ko sanang subukan. pwede kaya ang power supply ng computer ang gagamitin sa booster amp ? may 12v na at mataas ang current rate. uubra kaya ?

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by arkin on Fri Dec 09, 2011 1:26 pm

pwede,basta d baba sa 10 amp ang current.mas maganda pa yan sa trans4mer.ingat lng sa chasis,dilikado kc ang ground nyan.

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

Post by 01110011 on Fri Dec 09, 2011 7:19 pm

mag auto switch off ang PSU nyan

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Re: BOOSTER AMPLIFIER (MONO) using MJ2955

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