Ok to answer part of the original question. Indeed I have see the "clipped sine wave" as you stated and it has no negative component. Numbers of vectrons and other xtal oscilators look like that. No negative supply nor transformers so thats what you tend to get. Its normal. But as you say feed into a circuit to clean it up and all works just fine. Regards Paul.
On Mon, Nov 28, 2011 at 8:42 AM, Attila Kinali <[email protected]> wrote: > On Mon, 28 Nov 2011 19:28:37 +1100 > Michael Malloy <[email protected]> wrote: > > > I was pretty sure that the 4000 CMOS range was only really good sub > > 1Mhz I am wrong here? please correct me > > thats why I chose the 74HC series as its high speed CMOS?? > > High speed is a very relative term here. It's high speed compared > to the 4000 series, it's is not high speed in modern terms. > If you want speed, then look for the AC* or LV* families. > Like always: check the data sheets of the parts to see whether > they fit your need. NXP and fairchild have general guides on > logic families and their characteristics online. > > Attila Kinali > -- > The trouble with you, Shev, is you don't say anything until you've saved > up a whole truckload of damned heavy brick arguments and then you dump > them all out and never look at the bleeding body mangled beneath the heap > -- Tirin, The Dispossessed, U. Le Guin > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
