[neonixie-l] Re: Dekatron T-Shirt

Keith Moore wrote: > > This is my shirt. Please order it from me, and *not this fraudulent > seller*. > > > http://www.cafepress.com/thecourtjester > > > - Keith > > Wow, I didn't know. I guess "The Court Jester" is you, and the one I pointed to, is one of the pirates. Coincidentally, I

RE: [neonixie-l] Re: Off topic, but it has an orange display.. Heathkit ID-1590 anemometer

David, Indeed, everything has a limit, and I did not touch on that. An obvious (and significant) oversight. Indeed, many LEDs have a reverse voltage limit of around 5V, and as such my statements with respect to 5V logic circuits holds true. But that is not the end of the story either. Some

RE: [neonixie-l] Off topic, but it has an orange display.. Heathkit ID-1590 anemometer

I recently purchased some Orange LED’s – 3mm from a vendor on eBay and they are the absolute closest color that I have ever seen to a nixie tube glow. I used them to replace some yellow colons in a clock kit and they are spot-on with IN-12 display tubes. I would have preferred neon bulbs but

Re: [neonixie-l] Re: Off topic, but it has an orange display.. Heathkit ID-1590 anemometer

In the spirit of nixies, though, you could redo the entire design and use NE-2 bulbs. I've driven NE-2's with opto-triacs on a few projects, which allows you to safely (ie, with proper isolation) control AC-line voltages from digital logic. The MOC3021 has 5kV isolation and costs about 50

Re: [neonixie-l] Re: Off topic, but it has an orange display.. Heathkit ID-1590 anemometer

Early LEDs had even lower ratings iirc. I can remember flicking a design back where two LEDs were in parallel but opposite ways around for ac operation. The fwd volts of the illuminated one exceeded the specs for expecting long life of the other one. John K - Original Message -

Re: [neonixie-l] Noble gas 'Neon' Chemical Sympols

The best neon bender I know is Bill Buth. b...@neonstreet.com. He can fix you right up. His Etsy shop: https://www.etsy.com/shop/BillieBoi He will stay in the tube if boro glass is used. Bill can do that. Kr is totally boring. Xe you'll probably want filled to a high enough pressure that it

Re: [neonixie-l] Re: Off topic, but it has an orange display.. Heathkit ID-1590 anemometer

Bill, Thanks for the long rant, but typical LEDs have an absolute maximum reverse voltage rating of 5V. Exceeding this is not guaranteed to destroy the LED, but The LED is not guaranteed to work properly after such use. It is irresponsible to recommend that people ignore the datasheet

RE: [neonixie-l] Re: Off topic, but it has an orange display.. Heathkit ID-1590 anemometer

>From time to time I read dire warnings about the death of a LED by reverse >polarity. It does not happen. A LED is a diode, and is used normally in >forward bias, with a resistor (or some other circuit) to limit the current. If >the LED is reversed, it simply blocks the current, and precisely

[neonixie-l] Noble gas 'Neon' Chemical Sympols

Please can somebody trell me where to get those 'neon'-letter chemical symbols of noble gases ? I gXeot the symbols for He, Kr and Xe, but are missing just those for Ne and Ar. Futher tha He symbol is told me to be outgassed. Thanks for any information eric -- You received this message

Re: [neonixie-l] Re: Dekatron T-Shirt

Done deal. Thanks. If I could make one more suggestion. The shirt with the dual dekatrons, Separate them a bit more. Make 'em, you know, fit the anatomy :-) John -- John DeArmond Tellico Plains, Occupied TN http://www.tnduction.com<-- THE source for induction heaters

[neonixie-l] Re: Off topic, but it has an orange display.. Heathkit ID-1590 anemometer

Modern LEDs may be "better", but back in the old days, LEDs were no characterized for reverse operation and were pretty poor rectifiers (I forget whether it was leakage or low and unpredictable breakdown voltage, or both). I would keep the series Si diodes. There was a lot of discussion

[neonixie-l] Re: Off topic, but it has an orange display.. Heathkit ID-1590 anemometer

As long as you dont exceed the RMS current rating of the LED, they will outlast any other type of illuminating device being replaced, especially incandescent. >From the schematic, there are already diodes in the path, so if an LED was installed backwards there's no possible way it can get

Re: [neonixie-l] Re: Dekatron T-Shirt

Hi John, Take a look again. There should be sizes and colors with options to select 3XL. They show up in sizes small thru 3XL and tall 3XL. http://www.cafepress.com/TheCourtJester(not the other "Argon" site, please). I hope that takes care of it for you. Thanks. I'll stop filling

Re: [neonixie-l] Re: Dekatron T-Shirt

Thanks, Nick. These have been out there for over a year. I just dropped the price on them as best I could. So hopefully y'all can find something of interest. I have some other very funny interesting designs planned for this summer. But it will likely not be on Cafe Press. They (Cafe Press) are

Re: [neonixie-l] Re: Dekatron T-Shirt

Hi Keith, Nothing wrong with a modest bit of advertising so long as it's relevant. Spamming, of course, will be dealt with most harshly :) Cheers Nick On 24 March 2016 12:38:12 GMT+00:00, Keith Moore wrote: >This is my shirt. Please order it from me, and *not this

Re: [neonixie-l] Re: Dekatron T-Shirt

Thanks, John. I will fix that today if I can. I am VERY upset with CafePress -- again. I will post here shortly. - Keith On Thursday, March 24, 2016 at 8:46:39 AM UTC-4, NeonJohn wrote: > > > > On 03/24/2016 08:38 AM, Keith Moore wrote: > > > http://www.cafepress.com/thecourtjester >

Re: [neonixie-l] Re: Dekatron T-Shirt

On 03/24/2016 08:38 AM, Keith Moore wrote: > http://www.cafepress.com/thecourtjester > > Dekatron shirts - http://www.cafepress.com/thecourtjester/11101119 Hey Keith. Love your shirts. I want some. Bt. At 6'7" and around 290 lbs, the 2XL will probably fit my thigh. How about

[neonixie-l] Re: Dekatron T-Shirt

This is my shirt. Please order it from me, and *not this fraudulent seller*. This is one of many reasons I am in the process of creating these OFF from CafePress. CafePress has thieves who run around and just sell your designs on their site without any compensation. This, and the limitations of

[neonixie-l] Off topic, but it has an orange display.. Heathkit ID-1590 anemometer

(See attached) I have this unit