D
Donald
- Jan 1, 1970
- 0
Rich said:
Yes, and most of these hits are hit like this newsgroup.
Everyone like to talk about it, but few have any usefull information.
Rich said:
This is what they sent me:Jim said:Anything wrong with these........
http://www.ntp-time-server.com/wwvb-receiver/wwvb-receiver.htm
Of course I can't find a price list :-(
...Jim Thompson
Spehro said:Neither of those cost $10 retail. I suppose that it's barely possible
to see an LCD module in a $10 retail item, but I have not seen it.
I tried subbing an OLED 2 x 20 module into my Siemens phone base
station but it didn't work (probably a timing issue). Another 2-line
HD44780-based module did work. A little hot glue and it's good for
another year or two.
Also a useful approach with some of the PC related I/O stuff. Ignore
all the unnecesary stuff and extra leads.
Ancient_Hacker said:I've played with this a bit.
You might be able to get by with a few dozen turns of wire, resonated
at 60HKz with a 0.082 capacitor,
, couple of op-amp stages, separated by 60KHz xtal filters.
Digi key has 60.000 and 60.0002 xtals for a song. You need the .002
variety for the series elements.
The xtals are a bit too sharp, with a bandwidth under 0.2 Hz. You
need to dsign in a lower Q quite a bit to get the data to come
through!
Donald said:Yes, and most of these hits are hit like this newsgroup.
Everyone like to talk about it, but few have any usefull information.
Joerg said:Yeah, I remember those practical parallel ports and game ports. Useful for
a lot of EE tasks but now all gone :-(
These days you can get plenty of USB interface "boxes" for <$50 that are
much more versatile than 99% of what people used to do with parallel and
game ports, and with none of the hassle. In my mind that's a
significant step up in utility for the EE...
Rich said:Can you post a link? What's on the "world" side of these boxen? Could you
get one with just a bunch of I/O's, the way the printer port used to work?
Drill a hole in the can to air damp the crystal.
Should be enough.
Ancient_Hacker said:Oh! Clever!
But is that limited to crystals that vibrate in a certain mode, with
the ends flapping? In a compresion mode, uninformed intuition
suggests the effect of air might be negligible. What a fun thing to
explore when one gets a free minute.
Worked like a champ with plain old traditional quartz crystals.Ancient_Hacker said:Oh! Clever!
But is that limited to crystals that vibrate in a certain mode, with
the ends flapping? In a compresion mode, uninformed intuition
suggests the effect of air might be negligible. What a fun thing to
explore when one gets a free minute.
Joerg said:Just watch out that the school buses get re-routed so the amount of soot
getting in there is limited. Else you'll have to train some ants who
periodically clean in there with Windex ;-)
storing it elsewhere.