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Repair a pre

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Alvaro
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Repair a pre

Post by Alvaro » Sun Jun 25, 2017 3:40 pm

Hello everyone. I am a technician in electronics and I received for repair a preamp CJ that unfortunately has been repaired before by people not qualified for this. I could not identify the model but it has 9 double triodes and a 12x4 rectifier. Could someone please help me with the scheme?
I live in Brazil. :)

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Re: Repair a pre

Post by admin » Sun Jun 25, 2017 4:19 pm

Could you post some pictures of the front, back, and inside. We can probably help identify it with some pictures. We have a lot of schematics in our database so once we identify the model, you can probably download the schematic to help you troubleshoot any problems.
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Current Conrad Johnson Equipment in System: Evolution 2000, PV-12L, and D/A-2b.

Alvaro
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Re: Repair a pre

Post by Alvaro » Sun Jun 25, 2017 7:09 pm

I'm going to take pictures.

Alvaro
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Re: Repair a pre

Post by Alvaro » Sun Jun 25, 2017 7:11 pm

I was able to identify Premier Two!

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Re: Repair a pre

Post by admin » Mon Jun 26, 2017 7:21 am

Great. You can find the schematics here: viewtopic.php?f=17&t=128
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Current Conrad Johnson Equipment in System: Evolution 2000, PV-12L, and D/A-2b.

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