40W Power Amplifier

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Re: 40W Power Amplifier

Post by DJFEL on Wed Sep 04, 2013 10:54 pm

basa mona...

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Re: 40W Power Amplifier

Post by danny on Fri Sep 27, 2013 11:31 am

wow tagal ko nde naka log dito
salamat sa mga sumusubaybay dito
post lang nyo mga pic ng projects nyo

pasensiya na at super busy ako
post na lang din pag may mga questions
salamat ulit:D 

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Re: 40W Power Amplifier

Post by james on Wed Oct 23, 2013 7:21 pm

Ilan ba sir gamit ditong power supply? 35volts with center tap dual supply?

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Re: 40W Power Amplifier

Post by danny on Tue Nov 19, 2013 1:13 pm

40V itong amp na ito
pero pede din sa 35V kung wala kang saktong
40V

sorry sa very late reply

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Re: 40W Power Amplifier

Post by james on Tue Nov 19, 2013 6:19 pm

Ganito ba sir 40-0-40 ?

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Re: 40W Power Amplifier

Post by danny on Thu Nov 21, 2013 5:21 pm

yes Very Happy

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Re: 40W Power Amplifier

Post by danny on Thu Nov 21, 2013 5:22 pm

bale split supply siya

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Re: 40W Power Amplifier

Post by james on Thu Nov 21, 2013 6:45 pm

Salamat.goodjob

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Re: 40W Power Amplifier

Post by danny on Fri Nov 22, 2013 5:15 pm

Very Happy  ok

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Re: 40W Power Amplifier

Post by DJFEL on Fri Nov 22, 2013 7:12 pm

e singet ko to sa ebang project ko...wla na ka c ako PCB na dito...so bile mona..

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Re: 40W Power Amplifier

Post by danny on Sat Nov 23, 2013 12:05 pm

abang tayo baka may gumawa at mag benta

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Re: 40W Power Amplifier

Post by Ahmadiloz on Sat Nov 23, 2013 3:02 pm

magkano kaya pag ibenta sir Danny?

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Re: 40W Power Amplifier

Post by danny on Thu Nov 28, 2013 5:02 pm

ang alin?
yung pcb ba?

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Re: 40W Power Amplifier

Post by danny on Wed Jun 11, 2014 12:14 pm

there will be a pcb or a kit available soon for this amplifier
i am wondering if somebody here are interested
I have no idea about the pricing yet.
paki post lang dito kung sino ang mga interesado  Very Happy  

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Re: 40W Power Amplifier

Post by Hertz on Wed Jun 11, 2014 7:09 pm

Sir danny. same lang ba iyan ng nasa previous page?

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Re: 40W Power Amplifier

Post by danny on Thu Jun 12, 2014 2:32 pm

There are some additional parts
but not much, I will post the details later
once na finalize na ang documents.
 Very Happy 

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Re: 40W Power Amplifier

Post by natad123 on Thu Jun 12, 2014 7:06 pm

waiting sir.. tanong lang.. yung d4458 ba may katumbas ba na quad? yun? costly kasi pag yung 4558..

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Re: 40W Power Amplifier

Post by ultrasonic™ on Fri Jun 13, 2014 1:43 pm

aba paabang nyan sis Danny  ^_^

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Re: 40W Power Amplifier

Post by danny on Fri Jun 13, 2014 4:45 pm

sure
post lang kung sino pa ang interesado
si I can have an idea  Very Happy 

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Re: 40W Power Amplifier

Post by alvinquimbo on Fri Jun 13, 2014 10:12 pm

@sir danny sir interesado po ako sa ampli nato, may tanong lang ako, paano gawin tong L1 na 0.02uh...?tapos @sir ultra anong amps ng fuse ang nilagay mo??@sir danny baka may mixer ka, kahit 2channel lang..mahilig kasi ako sa audio system assembly.. Very Happy goodjob 

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Re: 40W Power Amplifier

Post by alvinquimbo on Fri Jun 13, 2014 10:16 pm

@sir danny syanga pala anong purpose ng 2k trimmer dito sa circuit nya..?@sir ultra ok lang ba na 5k trimmer ang gamitin kasi sa listahan mu ay 5k trimmer ang binili mo..?

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Re: 40W Power Amplifier

Post by danny on Sat Jun 14, 2014 2:06 pm

Hi Alvin,

I will post the picture of the coil maybe tomorrow
in that picture makikita mo kung ilan ang mga measurements
I was using a digital caliper that time but any ruler will do

I will check if I have a circuit for 2 channel mixer, parang may na post na si master ultra dito nun

The trimmer is for bias adjustment (Idling current)

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Re: 40W Power Amplifier

Post by alvinquimbo on Sat Jun 14, 2014 10:24 pm

Salamat po sir Danny...ask lang sir danny doon sa parts placement ng 40watts ay yung 1ohms ay nakapalupot po yung coil nya,ok lang ba yun?, yung resistor na paunta sa output ang ibig kung sabihin sir..^_^

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Re: 40W Power Amplifier

Post by ultrasonic™ on Sun Jun 15, 2014 12:58 am

nko sis danny.. si sis djfel ata ang nagpost nun... hnahanap ko din ang thread nya.. pero di ko pa nhahagilap  ^_^

xa nga pala sis vin abwt dun sa L1.. di ko binilang ang turns nun sa akin... nagpulopot lng ako ng magnetic wire. cguro #30AWG un.. inubos ko sa body ng resist.. so far... ok nmn ang performance nya,,, di nmn umusok at still running pa rin nmn  ^_^
sa trimmer.. 5k nga ang gnamit ko.. un lng ang pnakamalapit na availbale sa market eh.. ang alam ko ang purpose nung L1 ay pang isolate sa amp to capacitance load para maging stable xa...

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Re: 40W Power Amplifier

Post by ultrasonic™ on Sun Jun 15, 2014 1:07 am

kng tama ang memorya ko. .sabi ni SIr tony. tatlo daw ang Stages  nito..


input LTP(differential or long-tail pair)
VAS, or voltage amplification stage at
output stage..



hhmmppffff mapag aralan nga to  ^_^

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Re: 40W Power Amplifier

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