Hi fellows!
This is my first post in this forum.
I have a pair of those wonderful vintage output transformer and want to assemble a pair os amplifiers.
I'm insegure in what circuit I can use.
Any help, please?
Many thanks in advance.
This is my first post in this forum.
I have a pair of those wonderful vintage output transformer and want to assemble a pair os amplifiers.
I'm insegure in what circuit I can use.
Any help, please?
Many thanks in advance.
Hi,
Lucky guy!
Why not use circuits Acrosound recommends themselves?
There is an Acrosound brochure available somewhere on the ´Net, called Acro55.pdf, full of suggested circuits for several Acrosound OPTs.
Here is the link
In this brochure, for the TO-330, a "big brother of Williamson" circuit is given, using 4 pcs of KT66 in parallel push pull ultralinear.
Also, another circuit is given for the T0-330 using 6550/KT88 push pull / UL.
This brochure is very interesting not only for the OPTs, but for the circuits also. Acrosound seems to have had a preference for the Van Scoyoc phase splitter 🙄
Tom
Lucky guy!
Why not use circuits Acrosound recommends themselves?
There is an Acrosound brochure available somewhere on the ´Net, called Acro55.pdf, full of suggested circuits for several Acrosound OPTs.
Here is the link
In this brochure, for the TO-330, a "big brother of Williamson" circuit is given, using 4 pcs of KT66 in parallel push pull ultralinear.
Also, another circuit is given for the T0-330 using 6550/KT88 push pull / UL.
This brochure is very interesting not only for the OPTs, but for the circuits also. Acrosound seems to have had a preference for the Van Scoyoc phase splitter 🙄
Tom
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