Gainclone in parallel mode

palesha · 28th May 2004, 03:28 AM

I wish to make one gainclone mono 100W amp @4ohms with LM 3886 without volume control. I will like to know the people who hv done this or hv done similar project.

tool49 · 28th May 2004, 04:03 AM

200 watts Gäjnklon (Gainclone) - BPA200

palesha · 28th May 2004, 04:21 AM

Is this about parallel gainclone?

peranders · 28th May 2004, 07:11 AM

Paralleling is required if you also bridge connect _or_ have load under 4 ohms.

Check these files:
http://www.national.com/an/AN/AN-1192.pdf
http://www.national.com/appinfo/audi...gn_Guide13.xls
http://www.national.com/appinfo/audi...sign_Guide.pdf

To answer your question: Thomas Madsen's "Das Modul" is a developed version of BPA200 taken from AN-1192

tlmadsen · 28th May 2004, 09:17 AM

Hi Palesha

Have a look at my replay in:

Can you tell me how to beef up PA100?

It is all about parallering

Have fun

Thomas

carlmart · 28th May 2004, 11:27 AM

Quote:

Originally posted by tlmadsen
Have a look at my replay in:

Can you tell me how to beef up PA100?

It is all about parallering

If you look at one of Jeff Rowland's amps (the photo is on another HD), he implements a multi-turn pot. It probably zeroes the DC offset on each chip, as he parallels 3 LM3886s on each bridging side.

The Concentra, on the other side, doesn't seem to have individual adjustment and apparently uses inverting LM3886 arrangements.

Carlos

carlmart · 28th May 2004, 11:29 AM

The Concentra amp modules:

28th May 2004, 03:28 AM	#1
palesha diyAudio Member Join Date: Nov 2001 Location: Pune India	Gainclone in parallel mode I wish to make one gainclone mono 100W amp @4ohms with LM 3886 without volume control. I will like to know the people who hv done this or hv done similar project.

28th May 2004, 07:11 AM	#4
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	Paralleling is required if you also bridge connect _or_ have load under 4 ohms. Check these files: http://www.national.com/an/AN/AN-1192.pdf http://www.national.com/appinfo/audi...gn_Guide13.xls http://www.national.com/appinfo/audi...sign_Guide.pdf To answer your question: Thomas Madsen's "Das Modul" is a developed version of BPA200 taken from AN-1192 __________________ /Per-Anders (my first name) or P-A as my friends call me Tube Buffered Gainclone in work \|Thread

28th May 2004, 09:17 AM	#5
tlmadsen diyAudio Member Join Date: Aug 2003 Location: Roskilde - The vikingships	parallel chips Hi Palesha Have a look at my replay in: Can you tell me how to beef up PA100? It is all about parallering Have fun Thomas

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28th May 2004, 04:03 AM	#2
tool49 diyAudio Member Join Date: Apr 2003 Location: Montreal	200 watts Gäjnklon (Gainclone) - BPA200

28th May 2004, 04:21 AM	#3
palesha diyAudio Member Join Date: Nov 2001 Location: Pune India	Is this about parallel gainclone?

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