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Old 3rd April 2005, 03:54 PM   #1
topfee is offline topfee  Greece
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Question ARC SP9 Preamp voltages

Dear mates
I got a SP9 preamp from the old days that has a power supply transformer gone.I sent a fax to ARC asking the transformers secontary AC output voltages (it has 3 output voltages) and I got the anser that they can't give me this information (it is a 15 years old unit).
Please anybody has a preamp like this and can help me??

Best regards
Kyriakos
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Old 4th April 2005, 11:58 AM   #2
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from my schematic the transformer has two primaries
ans two sencondary.

The HV must be 280 Volt, 395 after rectification and the LV must be near 15 Volt, 22,7 after rectification.

Reinhard
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Old 4th April 2005, 12:27 PM   #3
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Is it possible to obtain a schematic?

Cheers

Andrea
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Old 4th April 2005, 08:24 PM   #4
topfee is offline topfee  Greece
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Dear Reinhard,Hello from Athens
I like to thank you very much for your help.
You right there are two secontaries.
If you like to give me the scematic please do.

Best regards
Kyriakos
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Old 5th April 2005, 06:17 AM   #5
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Im sorry, have this schem only on paper.

Someone with a fax number?

Reinhard
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Old 5th April 2005, 10:28 AM   #6
topfee is offline topfee  Greece
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Hello again Reinhard
If you like to send me the sp9 schematic please try this Fax number 00302106828091 and just mention "For Kyriakos"

Best regards
Kyriakos
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Old 5th April 2005, 11:20 AM   #7
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Hello,

if there are questions, do not hesitate to contact me.

Reinhard
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Old 5th April 2005, 12:15 PM   #8
topfee is offline topfee  Greece
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Dear Reinhard
Thank you very much for your help and the schematic
Best regards
Kyriakos
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Old 8th January 2008, 02:53 PM   #9
Valde is offline Valde  Denmark
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Default Schematic for ARC SP9

Did you get a schematic for the Audio Research SP9? Now I'm in the same situation that I would like to find a schematic also Because I recently bought a SP9 and I found out that it is slightly modified with two EC92 in each phono stage. The seller said it is for the supply but I'm not convinced.

So does anybod have a schematic so it can be emailed to me?
flemming.skov@nypost.dk
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