Franc Zabkar wrote in message
...
On Wed, 16 May 2012 08:27:42 +0100, "N_Cook" put
finger to keyboard and composed:

Franc Zabkar wrote in message
.. .
On Tue, 15 May 2012 16:12:10 +0100, "N_Cook" put
finger to keyboard and composed:

a schematic for a similar amp ...

Could we see it?

different powerFET pair but overlay device numbers/types etc correcpond
in
the SMPS area otherwise
http://www.eserviceinfo.com/download.php?fileid=51892

If I use the following search parameters ...

http://www.google.com/search?q=vb+vs...filetype%3Apdf

... I get several promising leads, but all of them have the Vcc and
Ground pins interchanged.

http://www.datasheetcatalog.org/data...irf/ir2151.pdf
http://www.irf.com/product-info/data...ta/ir2153z.pdf
http://www.irf.com/product-info/data.../irs27951s.pdf
http://www.dianyuan.com/bbs/u/83/3675811258537068.pdf
http://bbs.dianyuan.com/bbs/u/70/2970761224726220.pdf

... and lots more.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

I checked the pcb traces and pins 1 and 4 are swapped over on that schematic
, the 270K dropper agrees but ground and supply are swapped so pinning
agreement with those IR... ones