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Author Topic: LME498** and LM4702 Series (100-500watts Amp)  (Read 10516 times)

Online tony

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #300 on: June 22, 2012, 01:36:23 PM »
nasa 700 yung case, tapos 500 yung powder coating......malapit na....:)
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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #300 on: June 22, 2012, 01:36:23 PM »

Offline mund24

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #301 on: June 22, 2012, 06:48:04 PM »
Quote from: tony on June 22, 2012, 01:36:23 PM
nasa 700 yung case, tapos 500 yung powder coating......malapit na....:)
thanks sa info sit tony :) steel ba yan?

may benta dito sa amin 900php color black OK na kaya yun?
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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #301 on: June 22, 2012, 06:48:04 PM »

Offline sp0c0

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #302 on: July 16, 2012, 06:44:36 PM »
Hi Mga Sis!

sis mund24 musta na ang project mo na lm4702? musta ang quality ng audio nya?  meron din akong MJL21194 and MJL21193 from semiON gusto ko rin i try gamit ang mga ito.

Nice work Tito Tony! ang linis ng gawa! :)

sa wakas mahahawakan ko na rin ang soldering iron ko. :)  nanibago ako dito. bago na website ng elab.. :)

more power to elab! :) :)
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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #302 on: July 16, 2012, 06:44:36 PM »

Offline sp0c0

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #303 on: July 16, 2012, 07:16:58 PM »
mga sis and master pa comment naman po kung ok ba sa inyo ang circuit na ito?



thanks po. :)
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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #303 on: July 16, 2012, 07:16:58 PM »

Offline drin20

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #304 on: July 16, 2012, 09:29:35 PM »
Quote from: sp0c0 on July 16, 2012, 07:16:58 PM
mga sis and master pa comment naman po kung ok ba sa inyo ang circuit na ito?



thanks po. :)

sis, saan ka nakabili ng darlington pair transistor?
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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #304 on: July 16, 2012, 09:29:35 PM »

Offline sp0c0

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #305 on: July 17, 2012, 01:26:51 AM »
sis drin20

wala pako nung darlington pair na transistor pero plan ko bumuli sa semiON. pero i try ko muna yung MJL21194 and MJL21193 kasi eto ang meron ako sa bin ko.
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Online tony

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #306 on: July 17, 2012, 07:29:04 AM »
^yes pwede naman gumawa ng discrete darlington.....
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Online tony

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #307 on: July 17, 2012, 07:33:03 AM »
hhmmm.....+-40 volts gives about 26volts ac output, so at 8 ohm load power is 89watts only even at 4 ohms, power is just 178w so that the 300watt claim is unrealistic...

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Offline Tukkar

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #308 on: July 17, 2012, 09:54:13 AM »
Quote from: tony on July 17, 2012, 07:33:03 AM
hhmmm.....+-40 volts gives about 26volts ac output, so at 8 ohm load power is 89watts only even at 4 ohms, power is just 178w so that the 300watt claim is unrealistic...



Sir commercial specs....hehehe
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Offline sp0c0

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #309 on: July 18, 2012, 02:06:52 AM »
thanks for the info Tito Tony.  :) :)

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Offline sp0c0

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #310 on: July 19, 2012, 04:01:57 PM »
thanks sa comment sis tukkar. :)
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Offline etsusera

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #311 on: October 04, 2012, 11:52:34 PM »
Quote from: drin20 on April 27, 2012, 06:03:43 PM
anong fixed value ang pwedi i sub sa 200r potentiometer? thanks

mund24 pair of 2sc5200 / 2sa1943 ang gagawin ko. mahal ng 2sk1058. hehehe

pano circuit mo using those 2 transistors sis? tia
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Offline mund24

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #312 on: October 09, 2012, 12:36:12 AM »
guys im back :) long long long breaktime :)

ops naiba ang forum ah
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Offline ricdelros

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #313 on: October 09, 2012, 05:21:59 AM »
This 300w/ ch is peak, not RMS..
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Offline mund24

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #314 on: October 15, 2012, 01:36:32 AM »
Quote from: sp0c0 on July 16, 2012, 06:44:36 PM
Hi Mga Sis!

sis mund24 musta na ang project mo na lm4702? musta ang quality ng audio nya?  meron din akong MJL21194 and MJL21193 from semiON gusto ko rin i try gamit ang mga ito.

Nice work Tito Tony! ang linis ng gawa! :)

sa wakas mahahawakan ko na rin ang soldering iron ko. :)  nanibago ako dito. bago na website ng elab.. :)

more power to elab! :) :)
calling sis spoco :)

musta na yung LM4702 natin matching with MJL2119*? hope you can post the images :)
Quote from: ricdelros on October 09, 2012, 05:21:59 AM
This 300w/ ch is peak, not RMS..
yung post ba ni sis spoco sa taas?
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Offline sp0c0

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #315 on: October 15, 2012, 07:33:42 AM »
Quote from: mund24 on October 15, 2012, 01:36:32 AM
calling sis spoco :)

musta na yung LM4702 natin matching with MJL2119*? hope you can post the images :)yung post ba ni sis spoco sa taas?

sensya na sis mund24 na pending ko ang project na ito kasi naaksidente ako sa motor nong time na ginagawa ko ito e. napagaling pa ako. during that time ayaw ako pahawakin ng kahit anong tools ng family ko e. bawal lahat ng gamit ng pang electronics. :) ngayon ko lang ulit ito mababalikan. tatapusin ko muna yung leach amp na project ko ngayon. onte nalang kasi at tutunog na iyon e. :)

oo sis yung post ko na image sa taas. sabi ng mga sis at masters natin joke joke joke lang daw yun. hindi yung 300 watts. commercial reting lang iyon hehe.
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Offline mund24

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #316 on: October 15, 2012, 10:47:46 AM »
Quote from: sp0c0 on October 15, 2012, 07:33:42 AM
sensya na sis mund24 na pending ko ang project na ito kasi naaksidente ako sa motor nong time na ginagawa ko ito e. napagaling pa ako. during that time ayaw ako pahawakin ng kahit anong tools ng family ko e. bawal lahat ng gamit ng pang electronics. :) ngayon ko lang ulit ito mababalikan. tatapusin ko muna yung leach amp na project ko ngayon. onte nalang kasi at tutunog na iyon e. :)

oo sis yung post ko na image sa taas. sabi ng mga sis at masters natin joke joke joke lang daw yun. hindi yung 300 watts. commercial reting lang iyon hehe.
well OK lang sis! take your time, basta post mo dito yung LM4702 mo hihintayin ko :)

yung 300Watts, yup i know! :) as usual exaggerated yung wattage in RMS, if our LM4702 implemented right matching with good parts and PSU mamemeet mo yang wattage na yan :)
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Offline jiggins20

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #317 on: October 15, 2012, 05:03:31 PM »
Quote from: tony on March 27, 2012, 07:37:31 AM
^looking good.......Q6 emiter should connect to the output node....


here are 8 boards good for 8 stereo amps, cost me U$10 to bring in....




forsale po ba yan sir tony?
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Online tony

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #318 on: October 15, 2012, 05:06:11 PM »
yes...
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Offline jiggins20

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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #319 on: October 15, 2012, 05:21:42 PM »
mgkano po?
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Re: LME498** and LM4702 Series (100-500watts Amp)
« Reply #319 on: October 15, 2012, 05:21:42 PM »
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