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Author Topic: 2sa913a at 2sc1913a replacement..  (Read 4966 times)

Offline Woots29

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Re: 2sa913a at 2sc1913a replacement..
« Reply #40 on: October 25, 2009, 05:49:24 AM »
oo nga no oridnary nga hmmmm
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Re: 2sa913a at 2sc1913a replacement..
« Reply #40 on: October 25, 2009, 05:49:24 AM »

Offline jiggins20

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Re: 2sa913a at 2sc1913a replacement..
« Reply #41 on: October 25, 2009, 09:02:31 AM »
ordinary power transistor nga ito pero sa 4 pair ay may  isang pair na mataas na po ang resistance...
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Re: 2sa913a at 2sc1913a replacement..
« Reply #41 on: October 25, 2009, 09:02:31 AM »

Offline jiggins20

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Re: 2sa913a at 2sc1913a replacement..
« Reply #42 on: October 27, 2009, 11:48:11 PM »
mga masters tunog ampaw pa rin kahit napalitan ko na lahat ung mga power transistor's ano kayang dahilan bakit tunog ampaw ung amp ko?
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Re: 2sa913a at 2sc1913a replacement..
« Reply #42 on: October 27, 2009, 11:48:11 PM »

Offline jiggins20

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Re: 2sa913a at 2sc1913a replacement..
« Reply #43 on: December 09, 2009, 03:16:42 PM »
follow up lng solve na po ung yamaha amp ko may leak po ung emitter resistor kaya tunog ampaw......
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Re: 2sa913a at 2sc1913a replacement..
« Reply #43 on: December 09, 2009, 03:16:42 PM »

Offline tony

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Re: 2sa913a at 2sc1913a replacement..
« Reply #44 on: December 09, 2009, 05:02:58 PM »
Quote from: jiggins20 on December 09, 2009, 03:16:42 PM
follow up lng solve na po ung yamaha amp ko may leak po ung emitter resistor kaya tunog ampaw......

leak? yung emitter resistor nyan, mga 0.22 ~ 0.5 ohms kalasan nagiging open pag nagshort yung emmiter collector junction ng kakabit nyang power trannie, so in case me magshort na power trannie, pinapalitan ko yung emitter resistor ng bagong resitor...
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Re: 2sa913a at 2sc1913a replacement..
« Reply #44 on: December 09, 2009, 05:02:58 PM »

Offline I n s i d e r 2010

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Re: 2sa913a at 2sc1913a replacement..
« Reply #45 on: December 09, 2009, 06:31:52 PM »
leak resistor? bro bka namali ka? bka leak transistor?

 ;D ;D ;D ;D ;D ;D


nagtatanung lang po
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Offline jiggins20

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Re: 2sa913a at 2sc1913a replacement..
« Reply #46 on: December 09, 2009, 07:08:25 PM »
hehe...leak po ba ang tawag nun kasi ung 0.22 na emitter resistor ung reading nya is 0.8 nalng...
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Offline I n s i d e r 2010

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Re: 2sa913a at 2sc1913a replacement..
« Reply #47 on: December 09, 2009, 07:23:17 PM »
Quote from: jiggins20 on December 09, 2009, 07:08:25 PM
hehe...leak po ba ang tawag nun kasi ung 0.22 na emitter resistor ung reading nya is 0.8 nalng...

changed value resistor pag ganun,nangyari yan kz may overload sa pinoprotektahan nyang linya kaya nagbago ng value
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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: 2sa913a at 2sc1913a replacement..
« Reply #48 on: December 10, 2009, 12:27:29 AM »
i would say changed value also
tama si kagawad  :)
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Offline jomargi

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Re: 2sa913a at 2sc1913a replacement..
« Reply #49 on: December 10, 2009, 05:17:46 AM »
leak resistor ung 0.22ohm??(naalala ko tuloy ung classmate ko nong nasa electronics pa ako,,, basta pumalo dw sa tester ung components GOOD!!!! ;D ;D ;D) hmmm saka bihira naman naccra to bossing ha??? kung macra man open cgurado?? kc fusable resistor na po labas nito,,,, baka d naman eto ang cra bossing,,, try mo muna nga po mag palit ng transistor driver ung maliliit na transistor,,
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Offline jiggins20

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Re: 2sa913a at 2sc1913a replacement..
« Reply #50 on: December 10, 2009, 10:47:34 AM »
Quote from: jomargi on December 10, 2009, 05:17:46 AM
leak resistor ung 0.22ohm??(naalala ko tuloy ung classmate ko nong nasa electronics pa ako,,, basta pumalo dw sa tester ung components GOOD!!!! ;D ;D ;D) hmmm saka bihira naman naccra to bossing ha??? kung macra man open cgurado?? kc fusable resistor na po labas nito,,,, baka d naman eto ang cra bossing,,, try mo muna nga po mag palit ng transistor driver ung maliliit na transistor,,

change value po....atsaka un talaga ang cra...tumunog na nga eh......
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Offline danny

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Re: 2sa913a at 2sc1913a replacement..
« Reply #51 on: December 10, 2009, 11:41:12 AM »
congrats  :)
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danny

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Re: 2sa913a at 2sc1913a replacement..
« Reply #52 on: December 10, 2009, 12:41:57 PM »
 ;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 tony

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Re: 2sa913a at 2sc1913a replacement..
« Reply #53 on: December 10, 2009, 07:53:36 PM »
Quote from: jiggins20 on December 09, 2009, 07:08:25 PM
hehe...leak po ba ang tawag nun kasi ung 0.22 na emitter resistor ung reading nya is 0.8 nalng...

value drifting ang tawag dyan....depende sa tolerance, let's say 5% ang tolerance nyang resistor mo, kapag nging 0.33 ang value, out of spec na sya...
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Offline I n s i d e r 2010

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Re: 2sa913a at 2sc1913a replacement..
« Reply #54 on: December 13, 2009, 12:58:59 PM »
Quote from: tony on December 10, 2009, 07:53:36 PM
value drifting ang tawag dyan....depende sa tolerance, let's say 5% ang tolerance nyang resistor mo, kapag nging 0.33 ang value, out of spec na sya...

changed value nga eh
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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: 2sa913a at 2sc1913a replacement..
« Reply #55 on: December 14, 2009, 07:59:42 AM »
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Offline tony

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Re: 2sa913a at 2sc1913a replacement..
« Reply #56 on: December 14, 2009, 11:26:36 AM »
Quote from: kagawad on December 13, 2009, 12:58:59 PM
changed value nga eh

what's the big deal here? i have been dealing with electronics since age 14, a good 40 years ago....i donate my time here for free....i have a high paying job overseas.......i am here to enlighten people, i have no time to put up with your impertinence....
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Offline Vaounsi

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Re: 2sa913a at 2sc1913a replacement..
« Reply #57 on: December 14, 2009, 11:38:53 AM »
peace tau lahat, change value nakasanayan ng mga technician, or eto talaga tamang term d2...peace.. 8) :-*
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Offline danny

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Re: 2sa913a at 2sc1913a replacement..
« Reply #58 on: December 14, 2009, 11:58:33 AM »
this is almost same naman
iba-iba lang ang nakasanayan
as long as nandun ang whole meaning
or point, it should be ok  :)
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danny

Offline tony

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Re: 2sa913a at 2sc1913a replacement..
« Reply #59 on: December 14, 2009, 12:00:37 PM »
sorry for the outburst...it is not the meaning, but rather yung pagkakasabi....parang nagbubulyaw....
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Re: 2sa913a at 2sc1913a replacement..
« Reply #59 on: December 14, 2009, 12:00:37 PM »
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