Buch: High Power Audio Amplifier Construction Manual

[ich (Gast)]

Hallo!

Ich bin gerade dabei mich in das Thema Audioverstärker einzuarbeiten. 
Dabei habe ich dieses Buch bei einem Kollegen ausgegraben:

http://www.amazon.de/High-Power-Audio-Amplifier-Construction-Manual/dp/0071341196

Kennt jemand dieses Buch? Es scheint eigentlich recht gut zu sein, 
allerdings möchte ich die Schaltungen nachbauen die in einem Kapitel 
vorgestellt werden. Und es gibt mehrere Rezensionen zu dem Buch, dass 
diese Schaltungen nicht funktionieren würden:

>This review is based on the first edition. I do not know
>whether there are any later editions.

>The introduction material is rather derivative of authors
>like Douglas Self.

>However some of the circuits are seriously flawed and simply
>will not work because the author simply does not understand
>some basic concepts. For example, the quiescent biasing
>is undefined and arbitrary in some instances. (This
>was pointed out to the author several years ago.)
>For example in figures 10.2, 10.3, 11.10, 11.12,
>11.13, 11.14, 12.1 all have the same error;
>the current through the VAS stage may be anything,
>so the stage may be biased off, in which case the amplifier
>will oscillate, or biased on in which case the stage will suffer
>thermal run-away.

>In addition some of the quoted distortion figures are
>clearly wrong and seem to be based on a spice or similar
>program output rather than real measurements, which will
>give quite different values owing to real voltage drops
>across PCB tracks and non-linear magnetic field feedback etc

Ich kann die besagten Schaltpläne gerne Posten, nur habe ich momentan 
keinen Scanner zur Verfügung.