The PV electronics IN18 clocks (old style now) use 3x1206(?) type LED's under each tube. Much as some people don't like them, I find a nice orange LED complements the neon glow quite well...they can also make great night lights when the tubes are shut down at night...;-)
Nick On Wed, Feb 25, 2015 at 7:04 PM, Jeff Walton <[email protected]> wrote: > While I know that you don't care for LED backlighting, many of the designs > I've seen use (2) per IN-18 with one on each side of the tube seal for best > effect. You appear to have more than enough room for that. > > > > Very nice boards! > > > > Jeff > > > > *From:* [email protected] [mailto:[email protected]] > *Sent:* Wednesday, February 25, 2015 8:34 PM > *To:* [email protected] > *Subject:* [neonixie-l] IN-18 Modular Arduino clock layout updated > > > > Ok, John shamed me into tweaking the layout. Here's the latest revs. I did > address the lines crossing the hole keepouts, as well as rationalizing > out a whole bunch of vias. My criteria for a clean design includes as few > as possible jogs in the traces, minimal number of vias within reason, and > an adherence to x on one layer and y on the other.... until the routing is > done, then around the margins, it becomes OK to violate that rule. > Symmetrical layouts of repeated circuitry. Also only 45 degree bends, (90 > or 45 at vias OK) clean pad entry, (no acid traps), trace widths no > narrower than the design justifies... very conservative rules. Makes for > high yields and reliable boards. Anyway, now I'm pretty happy with both of > these boards, and after some careful design validation, I'll be ready to > order boards. So your feedback, please. Thanks, Terry > > > <https://lh3.googleusercontent.com/-CN1uD7heTcc/VO6FCAJkq0I/AAAAAAAAADg/4EdQtsuu8bA/s1600/main.JPG> > > > <https://lh3.googleusercontent.com/-pSKnky0S_lk/VO6FL0FteYI/AAAAAAAAADo/Xt71tF6X8jQ/s1600/extension.JPG> > > > > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/44df85be-01c4-4df7-bed6-1959abe369de%40googlegroups.com > <https://groups.google.com/d/msgid/neonixie-l/44df85be-01c4-4df7-bed6-1959abe369de%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/54ee8d52.88196b0a.5a63.ffffdd20%40mx.google.com > <https://groups.google.com/d/msgid/neonixie-l/54ee8d52.88196b0a.5a63.ffffdd20%40mx.google.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CAOX%2BRHJ5ppX3w5LeFCUd1Qr70SR1WNq5JaSo5jvNZ8n3z9nByQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
