Improving the Non-Inverting chipamp - Page 12

nina · 3rd June 2005, 03:41 AM

Quote:

Originally posted by carlosfm

...Then I connected my (DIY) pre to the Krell and things improved, as expected.

Carlos,

What's your diy pre- you using (May I ask)?

I don't have Krell before but surely will try your design (with 4.75 / 220 res) soon. My next project is unbalanced-zen pre- :-)

Thanks a lot for your clarification.

carlosfm · 3rd June 2005, 03:23 PM

AD815.

Upupa Epops · 3rd June 2005, 04:12 PM

To nina : Use TPA 6120 or, as Carlos say, AD 815. Both are much more better than some one transistor miracle

.

XELB · 3rd June 2005, 06:57 PM

Can any one tell me if the back of the Lm3886 is ground or V- ?

tobias_svensk · 3rd June 2005, 07:06 PM

Hm, is my memory short or wasn't the AD815 in "TOXXX" package before? "batwing SOIC" now?

nina · 3rd June 2005, 07:47 PM

Quote:

Originally posted by XELB
Can any one tell me if the back of the Lm3886 is ground or V- ?

V-

carlosfm · 3rd June 2005, 08:09 PM

Quote:

Originally posted by XELB
Can any one tell me if the back of the Lm3886 is ground or V- ?

V-.
Ground with single PSU.

Are you

now?

carlosfm · 3rd June 2005, 08:11 PM

Quote:

Originally posted by tobias_svensk
Hm, is my memory short or wasn't the AD815 in "TOXXX" package before? "batwing SOIC" now?

Only SMD now.

XELB · 3rd June 2005, 10:51 PM

Quote:

Originally posted by carlosfm

Are you now?

Yes

But I am making a bridged version based on your 3th version LM3886 schematic

Are you connecting the heatsink to V- ?

carlosfm · 3rd June 2005, 11:05 PM

Quote:

Originally posted by XELB
Are you connecting the heatsink to V- ?

What?

Isolate the chip from the heatsink, or isolate the heatsink from the chassis.

3rd June 2005, 06:57 PM	#114
XELB diyAudio Member Join Date: Dec 2004 Location: Lisboa	Can any one tell me if the back of the Lm3886 is ground or V- ? __________________ If you want power you must add control

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3rd June 2005, 03:23 PM	#112
carlosfm Banned Join Date: Mar 2003 Location: Lisbon, Portugal	AD815.

3rd June 2005, 04:12 PM	#113
Upupa Epops diyAudio Member Join Date: Aug 2003 Location: Prague,Czech Republic	To nina : Use TPA 6120 or, as Carlos say, AD 815. Both are much more better than some one transistor miracle .

3rd June 2005, 07:06 PM	#115
tobias_svensk diyAudio Member Join Date: Jan 2004 Location: Hudiksvall	Hm, is my memory short or wasn't the AD815 in "TOXXX" package before? "batwing SOIC" now?

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