My LM3875 Poweramp
Circuit base on the gaincone, but without the volume....
And the gain is lower than the suggestion circuit.
The Power supply cap using a pair of the 4700uf
working voltage at +/-35V
Using the 470uf for the by-bass
Resistance using with the RMG Japan...
Sound looks great, still running-in!
Hi, Good work, they look great
I've always wondered, those amps have 2 channels, they are 30 watts on 8 ohm each i think, can you bridge them?
to make like 60 watts on 8 ohm? Because I have like 5 lm3875 and i wanted to do something out of them.
Those are probably the smallest monoblocks I have seen.
I wonder, however, do those boxes really provide sufficient
cooling or are you running the chips on rather low supply voltage?
looks very nice
cool thing with the small boxes. There isn't any coolers it doesn't get to hot??
Its true that these generate alot of heat, and I bet those monolocks get hot.. But I'm sure that unless excessive hours of listening at max volume its not dangerous for the LM's.
hatasa - real good DIY Audio!
this amplifier DOES NOT fit in,
in the "UGLY amplifier" thread.
I like your work very much.
I do not think there is any worrying for too much HEAT.
When listening to music in a normal way
not much cooling is needed.
And I am sure LM3875 can take a lot.
Of course Capacitors can suffer from heat.
That is why I never put them TOO CLOSE to big heatsinks.
/halo - wants to buy hatasa amps ... :)
lm3875 are 56w into 8 ohm.... with a 100w peak.
(no, I'm not drunk)
I'm at school, working on lab, just tought I'd take a pause to see whats up on diyaudio..
Re: My LM3875 Poweramp
In my Opinion just a waste of money. :rolleyes: :rolleyes:
And ordinary Resistors are absolutely good enough
for any circuit.
/halo - have a little less money, than others :clown: :clown:
and manage just as good anyway
ok call me an idiot, but i've been wanting to do a gainclone amp for a while (not the reason i'm an idiot ;) ) i only say that because i havent been able to find any schematics, so here i am asking. i'll probably be using lm3886t chips. so post a schematic for my simple mind. thanks
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