Discussion about the Korg PolySix synthesizer

Hi,

The data sheet of the 2SB744 tells the important values:
PNP, TO-126 E-C-B, Ic=3A, Uce=45V (60V for 2SB744A), Ptot=10W (with heat 
sink)

Lets see what we can find:
BD180:
PNP, TO-225 E-C-B, Ic=3A, Uce=80V, Ptot=30W (with heat sink)
TO-225 looks from the drawings the same as TO-126.

BD438:
PNP, TO-126 E-C-B, Ic=4A, Uce=45V, Ptot=36W (with heat sink)

2N5195:
PNP, SOT-32 E-C-B, Ic=4A, Uce=80V, Ptot=40W (heat sink)
SOT-32 is the same as TO-126

all available at Farnell
klosmon wrote:
> I'm trying to locate a replacement for the 2sb744 power transistor on
> the P6 power supply board --
> I know this component is faulty (successfully swapped in a working
> transistor from another unit).
>
> This particular number seems to be obsolete, and I haven't had luck
> finding an equivalent.
> Can anyone point me in the right direction?
> Thanks.
>
> ~GMM
>
>
> ------------------------------------
>
> PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6Yahoo! Groups Links
>
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