[sdiy] UA726 clone possible?

[Jarno Verhoeven@ziggo.nl]

You can only get LS318 in SOIC, ideally you get something in a smaller case, for
it to fit the TO-can packaging.
There's BCM847bs/ds, but the matching isn't as good as LS318 (they do have them
in PNP, and NPN/PNP (the latter not matched)). Does anybody know of similar
parts, like DMMT3904?

Jarno.



> Op 9 september 2015 om 15:21 schreef Tom Bugs <admin at bugbrand.co.uk>:
>
>
> Sorry, please reply to this one so it has a new thread title:::
>
> ********************************
>
> I wondered before why no-one seems to have done a clone of the ua726.
>
> Doesn't *SEEM* all that complex?!
> A nice matched pair (eg LS318) is the main core.
> 6 transistors (I presume general purpose?), 2 x 6V2 zeners and 6
> standard resistors.. - those parts being for the heating element.
>
> Get the pin placement right, encapsulate it in goo..
>
> What am I wrong on?
>
> [I don't want to fully take on such a project, though could potentially
> do a design up for initial testing with a view to someone running a
> production in a friendly open-source-ish manner]
>
> Tom
>
>
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