My "audiophile" LM3886 approach - Page 103

Groundloops · 6th October 2005, 09:07 AM

Hi Piergiorgio ! Want to get´em ... What is the shipping fee to Germany ? Send me an email.

Cheers,

Gerhard

Greg Erskine · 6th October 2005, 09:37 AM

Hi Gerhard,

I was just wondering what "SmellOfPoo" means, is it German?

Regards

Groundloops · 6th October 2005, 10:35 AM

(Should I answer or ... ...) You know it´s not german.

Panelhead · 6th October 2005, 12:25 PM

Loking over the BOM for the twisted pear mono boards, did not see the 1 ohm resistors listed. Are they in the 1/4 watt group?

George

Russ White · 6th October 2005, 12:27 PM

Yes they are included in the 1/4W bundle

plovati · 6th October 2005, 12:29 PM

Quote:

Originally posted by SmellOfPoo
Hi Piergiorgio ! Want to get´em ... What is the shipping fee to Germany ? Send me an email.

Cheers,

Gerhard

You should got mail!

rudi · 6th October 2005, 01:50 PM

sometimes in life you discover something so precious that you want to keep it for yourself. well i wanted to..........

as Ryan suggested. place a 3k3 resistor form the -ve supply pin4 to the output pin 6

viola your stereo becomes a holographic machine.

well almost

very worthwhile. try it you might be suprised

cheers
Rudi

rudi · 6th October 2005, 03:27 PM

Hey Russ, How is the conversion comming along. once you've done that then try the 3k3 on the 318. this is one tweak that left me cold

cheers
rudi

Russ White · 6th October 2005, 03:31 PM

Quote:

Originally posted by rudi
Hey Russ, How is the conversion comming along. once you've done that then try the 3k3 on the 318. this is one tweak that left me cold

cheers
rudi

Yes I did try it, but I only had enough trafos for one channel.

So I will reserve final judgment, but off hand I would not say I was overwhelmed. Still I don't think it was bad.

I actually used a current source to bias the LM318 to class A once. It is indeed quite nice, but it lowers the headroom on the chip a little.

I meant to try it again. This is as good a time as any.

Cheers!
Russ

rudi · 6th October 2005, 03:46 PM

I don't blame you if you say you weren't blown away if you used one channel.

you obviously need two channels to get the full effect. i think you can even run one trafo for the 18v power supplies. anything over 30va will then do. 9not the best solution but will work) i feel the secret lies in the 18v not 12v

the "class a" trick. well i did not think that it robbed it of any headroom. What it added is so much better than a bit of loss in headroom

cheers
Rudi

6th October 2005, 09:07 AM	#1021
Groundloops I´m amazed! diyAudio Member Join Date: May 2004 Location: Hamburg / Northern Germany	My_Ref PCB blowout Hi Piergiorgio ! Want to get´em ... What is the shipping fee to Germany ? Send me an email. Cheers, Gerhard

6th October 2005, 09:37 AM	#1022
Greg Erskine diyAudio Member Join Date: Jan 2002 Location: Sydney/Australia	Hi Gerhard, I was just wondering what "SmellOfPoo" means, is it German? Regards __________________ Greg Erskine

6th October 2005, 12:25 PM	#1024
Panelhead diyAudio Member Join Date: Dec 2002 Location: Houston	One ohm resistors Loking over the BOM for the twisted pear mono boards, did not see the 1 ohm resistors listed. Are they in the 1/4 watt group? George

6th October 2005, 12:27 PM	#1025
Russ White diyAudio Member Join Date: Jan 2005 Location: Nashville, TN, USA	Yes they are included in the 1/4W bundle __________________ Less pulp more juice Twisted Pear Audio.

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6th October 2005, 10:35 AM	#1023
Groundloops I´m amazed! diyAudio Member Join Date: May 2004 Location: Hamburg / Northern Germany	(Should I answer or ... ...) You know it´s not german.

6th October 2005, 01:50 PM	#1027
rudi diyAudio Member Join Date: Jul 2004 Location: .	sometimes in life you discover something so precious that you want to keep it for yourself. well i wanted to.......... as Ryan suggested. place a 3k3 resistor form the -ve supply pin4 to the output pin 6 viola your stereo becomes a holographic machine. well almost very worthwhile. try it you might be suprised cheers Rudi

6th October 2005, 03:27 PM	#1028
rudi diyAudio Member Join Date: Jul 2004 Location: .	Hey Russ, How is the conversion comming along. once you've done that then try the 3k3 on the 318. this is one tweak that left me cold cheers rudi

6th October 2005, 03:46 PM	#1030
rudi diyAudio Member Join Date: Jul 2004 Location: .	I don't blame you if you say you weren't blown away if you used one channel. you obviously need two channels to get the full effect. i think you can even run one trafo for the 18v power supplies. anything over 30va will then do. 9not the best solution but will work) i feel the secret lies in the 18v not 12v the "class a" trick. well i did not think that it robbed it of any headroom. What it added is so much better than a bit of loss in headroom cheers Rudi

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