Sub oscillator for CEM3394

[Tony Clark]

> I'm a bit sceptical about using TL07* or TL08* as comparators. It often
> works, but sometimes they latch up. Seems to depend on manufacturer,
> lot, maybe supply voltage or whatever. Another case where one should be
> careful when replacing 741s, BTW.

   I've never had a TL0XX latch up on me, but that may be because I'm 
careful not to exceed (or come close to) the power supply on the input 
pins.  Whether or not these op-amps are latching up to something else, I 
have had no experience.  I don't usually use them as comparators if I 
want a specific voltage level out.

> Some comparator ICs have also the advantage that they can produce TTL
> output levels although being operated from +/-15 volts.

   Yes, LM311's are the boss for comparators.  Especially if you want TTL 
or CMOS logic outs.  And of course, anything else you could possibly 
dream up it can handle too.

   Tony

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I can't drive (my Moog) 55!         |     The E-Music DIY Archive
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Tony Clark -- clark at andrews.edu     | aupe.phys.andrews.edu/diy_archive
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