LM1875 design advise....

setting son · 29th September 2006, 01:23 PM

I've built an LM3875 gainclone and now want to try a high quality 1875 based one.

Any suggestions for circuits etc?

Thanks.

jan.didden · 29th September 2006, 01:42 PM

Quote:

Originally posted by setting son
I've built an LM3875 gainclone and now want to try a high quality 1875 based one.

Any suggestions for circuits etc?

Thanks.

... data sheet..?

Jan Didden

setting son · 29th September 2006, 03:24 PM

Thanks, Jan. I was thinking of other designs that circuit topologies that have proved to offer good sound quality.

Also, recommendations for the 2.2uf input cap, please?

Thanks.

Leolabs · 30th September 2006, 01:35 AM

Quote:

Also, recommendations for the 2.2uf input cap, please?

No cap.

setting son · 26th October 2006, 03:04 PM

Another (dumb?) question for you:

Would one 50Watt 2x18v per channel transfromer be sufficient for a low power 1875 amp?

Thanks again,

Lee

Leolabs · 26th October 2006, 03:06 PM

Quote:

Originally posted by setting son
Another (dumb?) question for you:

Would one 50Watt 2x18v per channel transfromer be sufficient for a low power 1875 amp?

Thanks again,

Lee

Why not??BTW,is 50VA not watts.

tinejenc · 27th October 2006, 10:17 AM

what is the difference between VA and W??

paulb · 27th October 2006, 11:24 AM

Quote:

Originally posted by setting son
I've built an LM3875 gainclone and now want to try a high quality 1875 based one.

Any suggestions for circuits etc?

Thanks.

http://www.diyaudio.com/forums/showt...24#post1012124

Quote:

Originally posted by tinejenc
what is the difference between VA and W??

Generally (not precisely) speaking, W is used in this forum for amp output power, while VA is for transformer output rating. VA is used because the W you get from a power supply depends on several other factors besides VA.

29th September 2006, 01:23 PM	#1
setting son diyAudio Member Join Date: Jan 2005 Location: North, England	LM1875 design advise.... I've built an LM3875 gainclone and now want to try a high quality 1875 based one. Any suggestions for circuits etc? Thanks.

26th October 2006, 03:04 PM	#5
setting son diyAudio Member Join Date: Jan 2005 Location: North, England	Transformers Another (dumb?) question for you: Would one 50Watt 2x18v per channel transfromer be sufficient for a low power 1875 amp? Thanks again, Lee

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29th September 2006, 03:24 PM	#3
setting son diyAudio Member Join Date: Jan 2005 Location: North, England	Thanks, Jan. I was thinking of other designs that circuit topologies that have proved to offer good sound quality. Also, recommendations for the 2.2uf input cap, please? Thanks.

27th October 2006, 10:17 AM	#7
tinejenc diyAudio Member Join Date: May 2006	what is the difference between VA and W??