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Author Topic: ano STKxxxx na amplifier IC preffered ninyu??  (Read 1543 times)

Offline tiktak

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #20 on: May 23, 2012, 09:29:28 AM »
Meron ako dito STK4235MK2 that came from an old Sharp mini compo, niloadan ng may ari ng 0ohms :D wala na ako makuha pinalitan ko nalang ng Laguisma, 100W + 100W ito ayun sa datasheet nya
8051 stuff

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #20 on: May 23, 2012, 09:29:28 AM »

Offline acer

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #21 on: May 23, 2012, 09:31:35 AM »
subs
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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #21 on: May 23, 2012, 09:31:35 AM »

Offline insomartin

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #22 on: May 23, 2012, 09:32:30 AM »
Meron ako dito STK4235MK2 that came from an old Sharp mini compo, niloadan ng may ari ng 0ohms :D wala na ako makuha pinalitan ko nalang ng Laguisma, 100W + 100W ito ayun sa datasheet nya

dapat ginawa mong COB na din yung laguisma.

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #22 on: May 23, 2012, 09:32:30 AM »

Offline 01110011

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #23 on: May 23, 2012, 09:37:53 AM »
yung pioneer na component dito sa bahay SX-P730 na model, STK4140MKII yung IC nya
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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #23 on: May 23, 2012, 09:37:53 AM »

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #24 on: May 23, 2012, 11:04:41 AM »
klaro din sa markings , ung letter K ung basehan ko.
minsan sa likod din ng IC (orig) ung alum, side may numero ex. STK4142E2A9E

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #24 on: May 23, 2012, 11:04:41 AM »

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #25 on: May 23, 2012, 11:26:35 AM »
yung fakes na stk is

white silicone instead of potting epoxy sa main transistors.
usually Cob ang small transistors and carbon film printed yung resistors
kapag SMT yung transistors malamang na fake.

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #26 on: June 19, 2012, 10:23:26 PM »
nahalungkay ko ung STK4152 ko ;D
mura nlang pala sa newport ung STK4192 (50WATTS)
last year bumili ako sa deeco sa raon ng stk4192ii sa halagang 350 each....50w stereo ito...
sir ung vid mo na STK4050. maganda din ba ung SQ?
ung STK4192 pinag iisipan ko pa sa newport. mas mura kasi kaysa dito sa amin.
kaso ayon sa datasheet, 52.5vdc max.
traffo ng 502 gagamitin ko.
convincing din ung TDA7293.

Offline 01110011

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #27 on: June 19, 2012, 10:46:53 PM »
hirap hanpin yung tda7293 ayun sa iba mas maganda pa daw tunog ng stk ics kumpara sa mga multiwatt packaged na amplifier ics
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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #28 on: June 19, 2012, 10:51:21 PM »
thanks +1
kandidato din to
http://www.steveselectronics.com/files/STK402-120.pdf
darlington ung output.

Offline efren

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #29 on: June 19, 2012, 11:40:13 PM »
yung sa pioneer na VSX model na mini compo, di ko na matandaan number pero STK din sya, ang pangeeeet :P  ng  tunog kahit anong speaker ikabit sa kanya ;D ;D
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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #30 on: June 19, 2012, 11:41:35 PM »
^ napapa isip na naman ako nito ;D ;D ;D

Offline efren

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #31 on: June 19, 2012, 11:49:45 PM »
sa parents ko yan, napalitan na nila nung bumigay yung 3 CD changer/player, bumili ng Kenwood worth 40+K di pa rin pumasa sa panlasa ng tenga ko ;D kaya binigay ko yung EL84 SE amp ko, para pag pumapasyal ako yun ang pinakikinggan ko, ayun mas madalas gamitin ni utol ;D
"just keep 'em glowing"

Offline 4XFOUR

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #32 on: June 20, 2012, 10:38:54 AM »
yung sa sony rv-600d, STK402-100S pangit ng bass...

ano kaya problema nito, pag ON naka power protect na?
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Offline jaguar3275

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #33 on: June 20, 2012, 02:22:10 PM »
Stk4182II mayron ako, baka maydatasheet kayo nito?
Exodus 15:2 The LORD is my strength and my song, and he has become my salvation; this is my God, and I will praise him, my father’s God, and I will exalt him.

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #34 on: June 20, 2012, 02:36:16 PM »
Stk4182II mayron ako, baka maydatasheet kayo nito?
http://www.datasheetcatalog.org/datasheet/sanyo/STK4182.pdf

kasama na PCB layout nyan

tsaka may sample protection circuit, muting circuit at thermal shutdown
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Offline jaguar3275

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #35 on: June 20, 2012, 02:53:58 PM »
thanks point sis...
Exodus 15:2 The LORD is my strength and my song, and he has become my salvation; this is my God, and I will praise him, my father’s God, and I will exalt him.

Offline 01110011

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #36 on: June 20, 2012, 05:40:31 PM »
yung sa pioneer na VSX model na mini compo, di ko na matandaan number pero STK din sya, ang pangeeeet :P  ng  tunog kahit anong speaker ikabit sa kanya ;D ;D
yung sa tatay ko PSX7300 model na pioneer, maganda naman tunog hindi ko lang nasilip yung loob ayaw ng dad ipabukas kasi, baka pagexperementuhan ko daw, retired na ngayon, napalitan na ng b&w na component
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Offline mund24

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #37 on: June 20, 2012, 08:49:45 PM »
hirap hanpin yung tda7293 ayun sa iba mas maganda pa daw tunog ng stk ics kumpara sa mga multiwatt packaged na amplifier ics
true
mas trip ko sounds ng STK VS multiwatt
mine from old Promac Karaoke using STK4152 nung nasira because of fault line, ayun pinalitan ko ng STK4192II, OK na OK ang tunog nito, mas trip ko eto VS sa LM3886 regards sa sound

as of now sa lahat ng amp ko eto ang pinaka trip kung tumunog! oh siguro nasanay lang tenga ko dito since eto ang pinaka old  since 1997 :)
isa eto sa mga pinagpraktisan ko :)

anyway ang taas ng gain ng mga eto kalimitan nasa 100  :o

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #38 on: June 21, 2012, 09:55:31 AM »
mine from old Promac Karaoke using STK4152 nung nasira because of fault line, ayun pinalitan ko ng STK4192II.

 anyway ang taas ng gain ng mga eto kalimitan nasa 100  :o
Meron ako stk4192II dati umaandar kaso ng ginawa ko yung pcb sa datasheets di na umandar...i've check all the layout with respect to schematics and seems correct....pero pag saksak lagi blown out yung fuse ng PS....tama ba yung layout sa Datasheets?


Talagang mataas ang gain ng mga ito...sinubukan ko minsan babaan kaso parang nag o-oscillate sya...
Pag gusto maraming paraan, pag ayaw maraming dahilan!!!!...

Offline mund24

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #39 on: June 21, 2012, 10:46:34 AM »
Meron ako stk4192II dati umaandar kaso ng ginawa ko yung pcb sa datasheets di na umandar...i've check all the layout with respect to schematics and seems correct....pero pag saksak lagi blown out yung fuse ng PS....tama ba yung layout sa Datasheets?


Talagang mataas ang gain ng mga ito...sinubukan ko minsan babaan kaso parang nag o-oscillate sya...
baka shorted na OP tran ng IC sis?
tama naman yung shematic sa Sanyo
from STK4152 - STK4192 may pinalitan lang akong resistor may pin sa 5 and 15

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Re: ano STKxxxx na amplifier IC preffered ninyu??
« Reply #39 on: June 21, 2012, 10:46:34 AM »

 

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