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Old 27th March 2004, 07:43 PM   #1
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Default schematic for audio research classic 120 amps?

Hello;

can anybody help me with a schematic for the AR "classic 120" power amp?
I also need information about the biasing procedure after changing O/P valves.

Thanks in advance for any help!
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Old 31st March 2004, 12:13 PM   #2
TJ is offline TJ
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send a mail to audio research and give them ur amp serial number ask for a coopy of circuit diagram any how to bias ur amp ! i hv try it b4 no problem !
http://www.audioresearch.com
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Old 31st March 2004, 05:30 PM   #3
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Default AR classic 120 schematic

Hello TJ;

thanks for your hint - I searched on the AR website before, but on their website they say there is currently no email available... well, if noone else has a schematic for me, I will try and send them a fax... thought it could be easier to get one here...I also tried several other (AR) schematic sources on the web, but the classic 120 doesn`t appear anywhere...

thanks again,

michael.
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Old 2nd May 2004, 09:22 PM   #4
docjoe is offline docjoe  Europe
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Default Audio-research schematics

hello audiomatic
i'm looking for a schematic for the phono stage of a Audio-research sp 10; I dont have one, it's just for comparison or maybe a future project...
you mentioned sources for schematics; can you give a list of those sources
thanx alot
docjoe
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Old 3rd May 2004, 03:36 PM   #5
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Default AR schematic source

Hello doc;

just take a look at this:

lots of manuals and other useful stuff

of course this had been posted before in this forum somewhere.

kind regards,

audiomatic
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Old 3rd May 2004, 05:25 PM   #6
docjoe is offline docjoe  Europe
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thanks audiomatic
i'm a bit lazy and new to this forum, did not figure how to search,
your thread just came as i asked about audio-research
cheers
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