100 Watt Class A Power Amp

popilin · 17th September 2011, 04:49 AM

Has anybody the complete article of Norman Thagard
"Build a 100-Watt Class-A Mono Amp"
Published in Audio Magazine January 1995-February1995-March1995 ?
I have only the first one, I never could obtain the second and third here in my country.
Thanks.

formula 22 · 17th September 2011, 05:26 AM

Hi !
Check the forum threads here.

popilin · 17th September 2011, 06:20 PM

I had allready check, the only I could obtain was

Coulomb 28th July 2002
"The Pass/Thagard project was a 100 Watt class A Amplifier published in Jan, Feb and March of 95. I will scan the schematic and post the PDF Monday night in Pass Forum under Pass/Thagrad thread."

Coulomb 29th July 2002
"I have attached a PDF of the schematic for the CLASS A 100 Watt Amplifier section. I do have all three articles available, but thought I would start with this schematic to see if there is any interest."

I have the schematics, but parts list is in the next article that I haven't
Thanks

hotrodmaniac · 17th September 2011, 08:05 PM

Popilin
Here is the parts list that you needed. I have the complete set of articles
but I will need to scan them in a lower resolution. reply if you still need
them.
Regards,
Jim Messer

popilin · 17th September 2011, 10:26 PM

Hi hotrodmaniac, (Can I tell Jim?)You are a Master!!!
16 years and now I have the parts list, Thanks a lot!!!
I have in my collection the Audio Magazine and a piece of newspaper with a picture of the Space Shuttle "Atlantis" with Dr. Thagard inside, but the parts list...never until today.
Thanks again, when You have the time, could You scan the Heatsink details?
Best Regards from Argentina
Popilin

jaycee · 17th September 2011, 11:43 PM

100W class A? I hope you live somewhere cold and with cheap electricity

Nelson Pass · 12:19 AM

The Pass/Thagard amp article is posted under articles at

Pass Diy

in two parts.

That one was called the A75. I recall that Norm later published
one solo.

hotrodmaniac · 18th September 2011, 03:41 AM

Popilin
I didn't mean to take so long to reply. I had a little bit of trouble finding all
the articles as I had removed them from the magazines to scan them previously. I would suggest building the Pass F-5 instead. The project that I am sending you is a good learning tutorial. This DIY forum is loaded with good information and helpful members. When the Norm Thagard class A 100W amp was published it was pre-DIY for me. Good luck!!!
Jim Messer

hotrodmaniac · 18th September 2011, 03:45 AM

Popilin
one last attachment.
Jim Messer

hotrodmaniac · 18th September 2011, 03:52 AM

Popilin
Somehow I messed up the attachments.
Jim Messer

17th September 2011, 04:49 AM	#1
popilin diyAudio Member Join Date: Oct 2010 Location: Traslasierra	100 Watt Class A Power Amp Has anybody the complete article of Norman Thagard "Build a 100-Watt Class-A Mono Amp" Published in Audio Magazine January 1995-February1995-March1995 ? I have only the first one, I never could obtain the second and third here in my country. Thanks.

18th September 2011, 12:17 AM	#7
Nelson Pass The one and only Join Date: Mar 2001	The Pass/Thagard amp article is posted under articles at Pass Diy in two parts. That one was called the A75. I recall that Norm later published one solo. Last edited by Nelson Pass; 18th September 2011 at 12:19 AM.

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17th September 2011, 05:26 AM	#2
formula 22 diyAudio Member Join Date: Sep 2011 Location: El Triunfo	Hi ! Check the forum threads here.

17th September 2011, 06:20 PM	#3
popilin diyAudio Member Join Date: Oct 2010 Location: Traslasierra	I had allready check, the only I could obtain was Coulomb 28th July 2002 "The Pass/Thagard project was a 100 Watt class A Amplifier published in Jan, Feb and March of 95. I will scan the schematic and post the PDF Monday night in Pass Forum under Pass/Thagrad thread." Coulomb 29th July 2002 "I have attached a PDF of the schematic for the CLASS A 100 Watt Amplifier section. I do have all three articles available, but thought I would start with this schematic to see if there is any interest." I have the schematics, but parts list is in the next article that I haven't Thanks

17th September 2011, 10:26 PM	#5
popilin diyAudio Member Join Date: Oct 2010 Location: Traslasierra	Hi hotrodmaniac, (Can I tell Jim?)You are a Master!!! 16 years and now I have the parts list, Thanks a lot!!! I have in my collection the Audio Magazine and a piece of newspaper with a picture of the Space Shuttle "Atlantis" with Dr. Thagard inside, but the parts list...never until today. Thanks again, when You have the time, could You scan the Heatsink details? Best Regards from Argentina Popilin

17th September 2011, 11:43 PM	#6
jaycee diyAudio Member Join Date: Apr 2004 Location: Norwich, UK	100W class A? I hope you live somewhere cold and with cheap electricity

18th September 2011, 03:41 AM	#8
hotrodmaniac diyAudio Member Join Date: Apr 2011 Location: Florida, USA	Popilin I didn't mean to take so long to reply. I had a little bit of trouble finding all the articles as I had removed them from the magazines to scan them previously. I would suggest building the Pass F-5 instead. The project that I am sending you is a good learning tutorial. This DIY forum is loaded with good information and helpful members. When the Norm Thagard class A 100W amp was published it was pre-DIY for me. Good luck!!! Jim Messer

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