[sdiy] Crosstalk between stages of Mesa Road King II guitar tube amplifier

cheater00 . cheater00 at gmail.com
Fri Feb 5 01:17:54 CET 2016


Hi Nils,
thanks for your email.
Removing V5 yielded no improvement in the issue.

Thanks

On Fri, Feb 5, 2016 at 12:55 AM, Nils Pipenbrinck
<n.pipenbrinck at hilbert-space.de> wrote:
> Hi cheater00,
>
> crosstalk between triodes in the same tube exist. On the internet I
> found reports of crosstalk as worse as 48db in dual triodes.
>
> Considering, that the V5b is running at a gain of approximately 30db
> that could be the culprit.
>
> In your case I would try out a few 12ax7 tubes and check if the
> situation becomes better. If you don't have any at hand you may also
> swap the existing tubes around.
>
> Regarding a good tube forum: I hang around at
> http://www.tube-town.de/ttforum/index.php almost daily. Very friendly
> and lots of competent people there.
>
> It's a German language forum, but everyone is fine with a thread in
> English. We have quite a few international regulars who post in English.
>
> Best,
>   Nils
>
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