[sdiy] TI SN74LS624N, worth buying?

[Neil Johnson]

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