Four quadrant and CAD

[Scott Bernardi]

$10 for a 1496? Are you sure you're not talking about a 1495? Every
place I've seen 1496's they were under a dollar.

Lincoln Fong wrote:

> >> What does the 633 have that you cannot get with a RC4200,
>
> >> a LM13700 or a 1496 ?
>
> >> Right, I see, minimum part count. But you can solder a lot
>
> >> of resistors in the time it takes to track down such a rare chip.
>
> >For a DIY yes, but when in commercial buissness, no. Each trimmer is
>
> >expensive then. Laser-trimming reduces the need.
>
> >
>
> >If you want to make a ringmod without noticeable bleedthru with a
> 633,
>
> >you need trimmers, believe me.
>
> >And, if you want to do it with a LM13700, you need MORE thn trimmers,
>
> >you need a miracle (in my experience).
>
> I’ve made a couple of ring modulators from the Electro Harmonix
> circuit ‘frequency analyser’ (633) that was translated in a Japanese
> magazine for use with a 1496. They sound fine to me. I can GIF the
> circuit after the break if anyone’s interested. Then again the 1496 is
> hardly cheap at about £10.
>
> On the subject of CAD I’ve just started with Easy PC from Number One
> Systems (Numberone.com- they’ll download/send a free version that
> doesn’t save files). For the reasonable price (£100 for 500 pin max
> version) it seems fine to me. The problem I’ve always had in the past
> is that you need to download a manual with any free software which is
> usually like a small telephone book and then if you get stuck you’ve
> got no support. The free versions often have bits missing that are
> specifically designed to make you pay up in the end when you get well
> stuck in. I guess I shouldn’t complain about free stuff but I farted
> about for ages until I finally put my hand in my pocket

>
> Lincoln
>
--
Scott Bernardi
sbernardi at home.net

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