2. amps-preamps
  3. 1387971405

Replace 12AU7 with 6SN7 ?

Hello Guys !
I own Ayon Triton (integrated, but use only the Power section) with 6 12AU7 an 8 KT88.
I read in some threads that the 12AU7 can be easily replaced by 6SN7 (which I have 4 of them and enjoy in my Preamp).
This to be done by a "socket converter" (available on eBay) which internally makes the required wiring for the filaments to allow the replacement.
The reported results were positive.
I asked the manufacturer the same question and the answer was "straight forward", "quote":

DO not use 6SN7 or any others as the original types are. IMPORTANT – otherwise your amp will be destroyed.

Does anybody have any experience with replacing drivers like 12AU7 to 6SN7 in Pre or Power ?

thanks.
amiglick

Showing 2 responses by amiglick

amiglick OP
2 posts
 
Reynolds853

Thank you for your post.
I have a preamp. which use 6SN7 tubes.
The NOS 6SN7 have an outstanding timbre which I want to implement also in the TRITON by replacing the 12AU7.
In the TRITON I use 12AU7 NOS Amperex from the 50's.

Regards.
amiglick OP
2 posts
 
Almarg

Al, thank you for your professional analysis.
The facts are:
"the component is designed to operate the 12AU7 at 6.3 volts (with the two halves of the filament in parallel), AND the power transformer can comfortably supply the doubled filament current that would be required by TWO tubes"

I am closely supported by a well experienced "TUBE" guy and it gives me confidence in what I am doing.

I will replace 2 tubes and monitor the changes (if any).
If the change will reflect subtle improvement, I will consider to modify the equipment so it will handle the replacement of all the SIX tubes.

I will post my results here for the benefit of the 12AU7 users.

Thank you all.

I
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