Author Topic: pioneer amplifier first assemble amplifier please help me this one. (Read 5079 times)

jiggins20 · « **Reply #20 on:** October 14, 2011, 04:23:12 PM »

mje340

Philippine Electronics Forum · « **Reply #20 on:** October 14, 2011, 04:23:12 PM »

vic24lordsf · « **Reply #21 on:** October 15, 2011, 02:41:42 PM »

mje340 ba yong sayo jiggins20.. bai musta ang imo amplifier nahalin..? nag himo paku og layout ani karon... bai wala paku mahumn..

Philippine Electronics Forum · « **Reply #21 on:** October 15, 2011, 02:41:42 PM »

pEN DoTA · « **Reply #22 on:** October 15, 2011, 05:42:07 PM »

ayy may bisdak dito!!!

mamaligya sa jiggins ug amp? tag pila pud? unsa nga design bay? westrak?

Philippine Electronics Forum · « **Reply #22 on:** October 15, 2011, 05:42:07 PM »

chinokscapsighter · « **Reply #23 on:** October 16, 2011, 03:07:08 AM »

oi ayaw mo sulti og binisaya kay dili sila kasabot...

Philippine Electronics Forum · « **Reply #23 on:** October 16, 2011, 03:07:08 AM »

Johannah Aleksandria · « **Reply #24 on:** October 16, 2011, 08:30:15 AM »

Sinaway kayo dati ni sis pendot ngayon nakisali na rin.

Philippine Electronics Forum · « **Reply #24 on:** October 16, 2011, 08:30:15 AM »

vic24lordsf · « **Reply #25 on:** October 16, 2011, 05:22:31 PM »

kung sakaling gawing kong 10 pair ang output tranny nito do i need to put extra resistor for their bias or i just put directly the tranny in parallel.. assuming stable na siya in 70 volts, then if i increase the voltage rail into 90volts anong components ang papalitan ko..do i need to calibrate the amplifier again..

thanks

Johannah Aleksandria · « **Reply #26 on:** October 16, 2011, 06:47:56 PM »

Quote from: vic24lordsf on October 16, 2011, 05:22:31 PM

kung sakaling gawing kong 10 pair ang output tranny nito do i need to put extra resistor for their bias or i just put directly the tranny in parallel.. assuming stable na siya in 70 volts, then if i increase the voltage rail into 90volts anong components ang papalitan ko..do i need to calibrate the amplifier again..

thanks

Sa pagkakaalam ko pag gumana ang ckt sa 36volts ay gagana ito hanggang sa 70voltsdc, di ko alam kung kaya hanggang 90voltsdc, unless designed for that high.
Pero ang amp na designed for 90voltsdc ay gagana kahit pababa sa 30voltsdc.
Mula sa ckt na designed for a maximum of 70volts dc ay may babaguhin ka na pag tumaas ka pa ng voltage.

vic24lordsf · « **Reply #27 on:** October 19, 2011, 12:12:18 PM »

ah ganon ba how about kung lalagyan ko ng 10 pair or mor transistor i kabit lang ba ito ng parallel o meron bang ilalagay na bias every transistor..

Johannah Aleksandria · « **Reply #28 on:** October 19, 2011, 09:23:53 PM »

Quote from: vic24lordsf on October 19, 2011, 12:12:18 PM

ah ganon ba how about kung lalagyan ko ng 10 pair or mor transistor i kabit lang ba ito ng parallel o meron bang ilalagay na bias every transistor..

Pag darlington pair ang driver at output, pwede ng gawing parallel at lagyan ng emitter resistor ang bawat isa.
Pag sziklai pair, di basta parallel lang agad, dapat force sharing ang pagkagawa at magkakaroon ng problema sa thermal stability.

vic24lordsf · « **Reply #29 on:** October 21, 2011, 08:45:58 AM »

ah ok salmat naman master at may konting liwanag din ang pag ka intendi ko po..kaya pa don sa pinost ni sir roland na transistor may nakalagay na resistor every transistor... salamat master points for you...

vic24lordsf · « **Reply #30 on:** October 24, 2011, 06:00:51 PM »

mga master please correct me if im wrong is this circuit correct please check for the transistor Q8 is this correct NPN... while its pair Q7 is PNP.. please correct me if im wrong...the output should be NPN and PNP pair.. please i need your help..

tony · « **Reply #31 on:** October 24, 2011, 06:12:30 PM »

first build mo? paganahin mo muna sa mababang voltage....

vic24lordsf · « **Reply #32 on:** October 24, 2011, 06:23:14 PM »

yes sir tony first build ko po..ano sa tingin mo sa output transistro po sir..tama po ba sir.eto po yong pioneer na galing kay sir roland nakuha ko po eto dito sa furom at inayos ko po ng kaunti.. peru may napansin ako sa ouput transistor nya kasi NPN and tatlo tapus isa lang PNP... sa ibang mga amplifier na nakita ko is pantay lahat ang output.kung may dalawang npn dapat dalawa din ang PNp eto hindi pantay 3 NPN at 1 PNP,, sa ngayon ai ginagawan ko po muna eto ng layout po.. medyo nalito ako kung tama po ba ang circuit nato.. please help me//

BhongTech · « **Reply #33 on:** October 24, 2011, 06:26:13 PM »

quasi ang design ng o/p tranny mo.

tony · « **Reply #34 on:** October 24, 2011, 06:27:23 PM »

actually, one pair of output trannies na npn type, yung circuit kasi quasi-complimentary, bootstrapped yung VAS......

vic24lordsf · « **Reply #35 on:** October 24, 2011, 06:36:43 PM »

ah ok .. so tama po yan sir.. walang mali diyan sa circuit sir... slamat.. sa inyo..

vic24lordsf · « **Reply #36 on:** October 24, 2011, 09:20:53 PM »

eto napu ang layout ng output eto po ang link

http://www.mediafire.com/?ehjev7c8ejc3p3a

sorry hindi ako maka appload ng picture paki pos nalang po..

Johannah Aleksandria · « **Reply #37 on:** October 24, 2011, 10:47:39 PM »

Quote from: vic24lordsf on October 24, 2011, 09:20:53 PM

eto napu ang layout ng output eto po ang link

http://www.mediafire.com/?ehjev7c8ejc3p3a

sorry hindi ako maka appload ng picture paki pos nalang po..

Ano ba pang open sa file mo sis? anlaki ah. bat di ma-open ng ACDSee.

BhongTech · « **Reply #38 on:** October 24, 2011, 11:17:10 PM »

TS ito ako na ang maglabas,grabe ang laki ng space na kinain,kaya in-edit ko pa.

vic24lordsf · « **Reply #39 on:** October 25, 2011, 10:39:27 AM »

ai malaki bah... sige po master edit mo po siya.. gawan ko po ng layout mamaya ang driver at ibang parts

Philippine Electronics Forum · « **Reply #39 on:** October 25, 2011, 10:39:27 AM »

Author Topic: pioneer amplifier first assemble amplifier please help me this one. (Read 5079 times)

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