[sdiy] TI SN74LS624N, worth buying?

[blacet at blacet.com]

This may have already been mentioned but the SSM2164 is arguably the most
interesting IC for general electronic music use.  Althought it is intended
as a VCA, the voltage control blocks find uses in LFOs, filters, VCOs etc.
This is one IC all DIYers should become experts in the use of!

> Thanks for the responses everyone.
>
> Looks like I'll hold off on that particular chip and find new stuff.
> Hell, I still have about 25 40106 that I need to figure out what I'm
> going to do with.
>
> That's the problem with beginners like me, I want to jump in as far as
> I can with not knowing the basics.
>
> Too many damn parts to buy.  They all look so pretty.
>
> -Bob
>
> On Tue, Nov 8, 2011 at 12:15 AM, Neil Johnson
> <neil.johnson97 at ntlworld.com> wrote:
>> James Patchell wrote:
>>>
>>> Uh....I would pass. They aren't very good VCO's. Not really directly
>>>  musically usefull.
>>
>> [snip]
>>>
>>> But they do work at very high frequencies. I am sure somebody
>>> probably could come up with something creative, but in general, I
>>> would save my money.
>>
>> One application would be as a master oscillator for an octave-divider
>> synth/organ.  The JEN SX1000 uses a 74LS221 as a master VCO driving a
>> digital divide-down chip, so you can modulate the frequency a bit
>> (manual
>> TUNE pot + LFO for vibrato).
>>
>> Not so good for direct tone generation though -- as others have said too
>> little range and just too temperamental to bother with, plenty of better
>> options out there.
>>
>> Cheers,
>> Neil
>> --
>> www.njohnson.co.uk
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