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Changing schematic?

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littlejac

Post subject: Changing schematic?

Posted: Sun Jun 10, 2007 4:02 pm

Expert

Joined: Tue Sep 19, 2006 11:46 am
Posts: 1078
Location: PA

I need to change a Gibson GA-5 preamp.
This design calls for a 6EU7 and a 6C4. I want to change to a 12AX7. Does anyone know what resistors and caps would need to be changed? Or maybe know of a schematic using 2 6AQ5's, a 6X4 and a 12AX7.
Any help would be appreciated.
Thanks.

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coco

Post subject:

Posted: Sun Jun 10, 2007 5:20 pm

Holy Ghost

Joined: Sun Mar 13, 2005 4:10 pm
Posts: 7519
Location: Canada

Dont know without researching & designing the thing but why?

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Stephen
Web: www.trinityamps.com. Facebook: facebook.com/trinityamps. Twitter: @trinityamps

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littlejac

Post subject:

Posted: Sun Jun 10, 2007 6:17 pm

Expert

Joined: Tue Sep 19, 2006 11:46 am
Posts: 1078
Location: PA

because this is the way the chassis is set. I don't want to change the chassis. You'll see when I'm done. I'm going to take the 12AX7 and use it for a double gain. Won't be great, but I'm betting it will work.
Thanks
Sorry I am strange :lol:

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