I've attached a PDF of the IC list, sources and price.
Hope this helps, Dave M Nick Sayer via time-nuts wrote:
On Nov 22, 2015, at 7:47 AM, paul swed <paulsw...@gmail.com> wrote: As mentioned a nice answer to the wwvb modulation change. I looked up the parts and it seems that they have gone into the NOS state. Though you can get some from digikey and such especially in the SOIC package. Also the VCO isn't available. It appears that the Chinese sight has the lmc6484 and LM387n at reasonable prices for small quantities. Most likely will order from there. Have not checked out the PIC chip yet. The 74HCXX are common and reasonable.That’s kind of a shame. I’m sure a redesign with modern SMD parts could be accomplished. The big question is how the stability of a wwvb disciplined oscillator would compare to a GPS disciplined one (all other things being equal). Well, it’s a big question for me, since I have no idea, but I imagine simply asking here will give an immediate answer. :) I’d have to guess that the PLL would behave better given a 60 kHz reference rather than a 1 Hz one. But how stable is that 60 kHz reference after going through, what, a thousand miles of ionosphere or so? _______________________________________________
IC Parts List.pdf
Description: Adobe PDF document
_______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
