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In Reply to: RE: 6V6 Amp- my design vs drlowmu design posted by sony6060 on January 11, 2017 at 21:05:18
Is the M6 transformer your PT or outputs?
Count me a fan of Heyboer!
Follow Ups:
M6 lamination power transformer was custom built by Heyboer Transformer. M6 provides more power output in smaller package vs standard power transformer M19 laminations.
The output transformers are Dynaco ST-70 (A-470) new manufacture exactly to old specs including winding turns, gage of wire, interleaves, etc from Triode Electronics. It is a great sounding transformer and accurate. Many audiophiles do not know this. Most audio transformers use M6 laminations.
I'm toying with remade Z565....haven't played with A470. The original Dynaco 70 circuit sure did measure well...damn popular amp as well...probably for a reason!
I like your build!!!
Z565 are one of the best audio transformers ever built.
I found the Z565 to have a very characteristic sonic fingerprint. Even with radically different topologies. I built an amp with a pair, and then upgraded to an output wound exactly like a Peerless S-265-Q, but with taps 20, 30% instead of the OE 50%. They cleaned the Z565's clock, and I got another pair made for the 4E27 amps, and got those with 20, 30 and 40% taps.
cheers,
Douglas
Friend, I would not hurt thee for the world...but thou art standing where I am about to shoot.
Interesting. At Electron One transformer tests the Z-565 had about a perfect square wave output and the Peerless had overshoot on the square wave test.
The Z565 are $190 a pair and the Peerless is about $1200 a pair if MagnaQuest still builds them.
Personally, I think the Dynaco A-431 sounds better than the Z565, but the A-431 are lower P to P impedance.
If the Peerless sound as good as you state, they are worth the money.
What you may discover at some point is that a winding house with an NC winder, and the winding details gotten from taking apart a transformer can make copies of anything that is put in their hands. I supplied an S265Q, and had them made in pairs a few times...:)
cheers,
Douglas
Friend, I would not hurt thee for the world...but thou art standing where I am about to shoot.
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