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norvbul 5th February 2003 09:13 PM

Ampli 300W
Has anyone ever built this amp.
It was found at the url below. There is also a pcb and overlay diagram there.

EchoWars 5th February 2003 09:17 PM


You don't have permission to access /audiofanatic3/Tipo/Stato_solido/pic_finaliSS/350W_BD750A_BD751A/350W_BD750A_BD751A.jpg on this server.

P.Lacombe 5th February 2003 09:59 PM

Try this one, and click on 350W BD750A BD751A

Regards, Pierre Lacombe.

johnthetweeker 6th February 2003 03:42 AM

At first sight, some confusion with the power rating:
(a)The filename says '350W'
(b)The title below schematic says '300W'
(c)Looking at the supply rails (+/-50V), I wouldn't expect more than 200W into 4 ohms.

Looking at the bias diodes, I wouldn't suggest it as a hifi. May be good for sub only, in which case I think I would rather consider the simpler topology at:

I'll still study the circuit and see if I get some more ideas.


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