L'Amp: A simple SIT Amp - Page 154

generg · 19th December 2012, 09:20 AM

@Dan: very impressive build Dan! you really learned the lesson from Peter Daniel...

@protos: very interesting, these differences.... did you use the Mu follower circuit with the 500R Zen pot? and thanks for the sound impressions compared to the valve amps.

protos · 19th December 2012, 09:42 AM

Yes I used the 500r pot but I have only experimented with it when adjusting for lowest distortion. It always ended up in the middle in both amps. I have not experimented with it acoustically yet. What is your impression of its acoustic effect?
Anyway there are so many variables, bias, current, voltage etc that also change relative to each other that trying to optimize by ear would need a whole year of auditioning.

DIYspaceW · 21st December 2012, 10:58 AM

Quote:

Originally Posted by dantwomey

Here's a pic of me checking the power supplies on my SIT. More to follow soon!

Regards,
Dan

Very nice looking... Are you using Vishey BC caps for PSU?

dantwomey · 21st December 2012, 07:47 PM

Quote:

Originally Posted by DIYspaceW

Very nice looking... Are you using Vishey BC caps for PSU?

Here's what I purchased for PS capacitors.
4pcs CDE 75V 37000uF Computer Grade Bus Capacitors New | eBay

Regards,
Dan

vdi_nenna · 26th December 2012, 08:03 PM

Mike, any ETA on the LuminAria preamp article?

Michael Rothacher · 26th December 2012, 08:55 PM

I just made a few small improvements and I'll try to wrap up the writing over the holiday, but generally, the print pubs are about 4-5 months out, so probably Spring.

Antoinel · 27th December 2012, 11:04 AM

Mr. Rothacher. Maybe Mr. Pass can publish your article in First Watt; which has a worldwide readership.

vdi_nenna · 27th December 2012, 01:40 PM

I think Mike wants to see the article on paper- AudioXpress or Linear Audio?

Antoinel · 27th December 2012, 01:43 PM

Quote:

Originally Posted by vdi_nenna

I think Mike wants to see the article on paper- AudioXpress or Linear Audio?

Fair enough.

Michael Rothacher · 27th December 2012, 08:33 PM

Being on PassDIY was the pinnacle for me. How do you follow that?

It would be fun to be in print once, before there is no more print.

Happy New Year Nelson, and everyone!

19th December 2012, 09:20 AM	#1531
generg diyAudio Member Join Date: Jul 2009 Location: Near Frankfurt	@Dan: very impressive build Dan! you really learned the lesson from Peter Daniel... @protos: very interesting, these differences.... did you use the Mu follower circuit with the 500R Zen pot? and thanks for the sound impressions compared to the valve amps. __________________ and the First Wtt is......a really First Class PSS Idea !

19th December 2012, 09:42 AM	#1532
protos diyAudio Member Join Date: Mar 2002 Location: Athens+Addis Ababa	Yes I used the 500r pot but I have only experimented with it when adjusting for lowest distortion. It always ended up in the middle in both amps. I have not experimented with it acoustically yet. What is your impression of its acoustic effect? Anyway there are so many variables, bias, current, voltage etc that also change relative to each other that trying to optimize by ear would need a whole year of auditioning. __________________ ``The author always assumes that when power is applied , the amplifier will explode or ,at the very least, catch fire.´´ Morgan Jones, Building Valve Amplifiers.

26th December 2012, 08:03 PM	#1535
vdi_nenna diyAudio Member Join Date: Oct 2000 Location: PA, USA Blog Entries: 1	Mike, any ETA on the LuminAria preamp article? __________________ I build, therefore I am.

26th December 2012, 08:55 PM	#1536
Michael Rothacher www.audiohobby.com diyAudio Member Join Date: May 2001 Blog Entries: 3	I just made a few small improvements and I'll try to wrap up the writing over the holiday, but generally, the print pubs are about 4-5 months out, so probably Spring. __________________ My Website, Projects, Sale Items

27th December 2012, 01:40 PM	#1538
vdi_nenna diyAudio Member Join Date: Oct 2000 Location: PA, USA Blog Entries: 1	I think Mike wants to see the article on paper- AudioXpress or Linear Audio? __________________ I build, therefore I am.


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27th December 2012, 11:04 AM	#1537
Antoinel diyAudio Member Join Date: Jan 2012 Location: Pennsylvania Blog Entries: 1	Mr. Rothacher. Maybe Mr. Pass can publish your article in First Watt; which has a worldwide readership.

27th December 2012, 08:33 PM	#1540
Michael Rothacher www.audiohobby.com diyAudio Member Join Date: May 2001 Blog Entries: 3	Being on PassDIY was the pinnacle for me. How do you follow that? It would be fun to be in print once, before there is no more print. Happy New Year Nelson, and everyone! __________________ My Website, Projects, Sale Items

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