lm1875 fizzing away probelm - Page 18 - diyAudio
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View Poll Results: Was a good idea to use two lm1875 or a big stk chip
Use stk 8 27.59%
use lm1875 21 72.41%
Voters: 29. You may not vote on this poll

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Old 24th January 2013, 04:14 PM   #171
PetruV is offline PetruV  Romania
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Originally Posted by picowallspeaker View Post
PetruV we're happy to know that you're still alive !
i got zapped a million times from my computer psu building a static charge
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Old 24th January 2013, 07:00 PM   #172
PetruV is offline PetruV  Romania
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I made an amp with this schematic and c8050 and it draws to much current from the input causing my test radio's power led and display to dim with the beat that not happening when there is nothing hooked up to the radio or the volume turned down,the radio has an inbuilt speakers which turn on when the jack is unplugged
Ps the transistor dosent even get warm
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Old 25th January 2013, 05:04 PM   #173
PetruV is offline PetruV  Romania
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noanswers sad face
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Old 25th January 2013, 09:43 PM   #174
PetruV is offline PetruV  Romania
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Just finished my lm1875 when i power it up it makes a buz and raws a lot od current,the power led goes dim,but if i turn it off and on in an instant the led goes bright the test lamp goes bright for a split sec and everithing is ok,could this be because of the lightbulb limiting the current ant the chip amps drawing a lot of current during power up causing it to kinduf run out of power and try and start and run oout of power and start up infintely
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Old 26th January 2013, 11:45 AM   #175
PetruV is offline PetruV  Romania
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It causes the radio that i test it with to lose signal when i plug it in the amp,maybe because the center tap of the transformer is used as ground
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Old 26th January 2013, 01:12 PM   #176
PetruV is offline PetruV  Romania
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why ARENT ANY ANSWERS IS EVERIBODY DEAD SAD FACE
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Old 26th January 2013, 03:26 PM   #177
PetruV is offline PetruV  Romania
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I finished it and its working and im proud of it i have
DONE IT MYSLEF
Or as tekko would say MY LIFE IS COMPLETE
but lets dont stop here i got to make a transistor amp and a high power 5.1 amp using an apex b500 or something like that for the sub chanel.That would require one hell of an transformer,But stay tuned for more!
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Old 26th January 2013, 04:21 PM   #178
PetruV is offline PetruV  Romania
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Just listening to it and the trebles are amazing but the bass is weak ,also the mids are very spatial,but there is an small distorsion which sounds weird maybe beacause the wires are bundled togheter to close,By far the best amp i ever heard,even better than my computer psu tda 8560q which led the previous record soundig better than the 1000 of dolars sound systems i had heard ove the years.
The lm1875t is weak,not very bassy altough used in an sub plate amp i have
But the other sounds are amazing and spatial,but that distorsion bugs me a lot
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Old 26th January 2013, 06:29 PM   #179
PetruV is offline PetruV  Romania
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no answers














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Old 30th January 2013, 08:17 AM   #180
PetruV is offline PetruV  Romania
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Any answers
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