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DR.Z M12

Posted: 12 Feb 2013, 22:03
by Dingleberry
Hi.

Have anyone of you had a change to peek inside one?
It would be interesting to see what makes it tick.
Preamp is the "standard" dr.z ef86 pre, but there is supposed to be "something special" in the power amp.
Quote:
"The M12's power section is not a standard EL84 circuit. The voltage across the plates has been slightly reduced to decrease distortion and noise, allowing for greater input signal quality. Various "tweaks" were made until he ended up with an amp that was neutral enough to do the job, but still maintained it's character and attitude."

How special can cathode biased 2xel84 power section be? Ultralinear?
Pics would be great.

-T

Re: DR.Z M12

Posted: 13 Feb 2013, 09:36
by fakcior

Re: DR.Z M12

Posted: 14 Feb 2013, 01:42
by Dingleberry
Thanks!
Pics revealed indeed the "various tweaks" (no screen resistors and 5k6 grid stopppers) in the power amp.

-T