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Thread: 7 Segment Displays
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05-12-2013, 09:51 PM #1
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7 Segment Displays
I've been searching all over for 7 segment displays. The question I have is there a noticeable difference between .3" and .36" digit 7 segment displays? If so, I'm trying to find black face white or blue digit .3" displays is like finding gold in my back yard, where .36" is a little easier to find. I know i can get them through opencockpits.com but spending 3 Euros per display especially converted to USD is a bit expensive. Anyone have a good distributor out there for .3" if there is a noticeable difference?
Thanks
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05-13-2013, 10:30 AM #2
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- Apr 2011
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Re: 7 Segment Displays
I frequently use DigiKey for specialty items. The items sell for market value and it will save you the overseas shipping costs.
All DigiKey 7-segment asssortments
Blue 1-digit
White 1-digit
As for the size difference, it amounts to 2/16 of an inch. Normally, this is considered dismissible.
[edit]
If this is a replacement item on a pc-board, I'd be sure to check the specs for pinout measurements.
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05-14-2013, 01:58 PM #3
Re: 7 Segment Displays
Have you looked at mouser.com?
Altso Tayda Electronis might have cheap-ish white .36 displays. However I am not sure how (or even if) they interface with the most common used display cards (like Open Cockpits). But give them a try taydaelectronics.com. I have used the shop a few times. Things arrive faster than your average ebay-seller.Best wishes, Peter
Building a B737NG - Blog: BuildABoing
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05-14-2013, 11:26 PM #4
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Re: 7 Segment Displays
I'll have to take a look. These sites never came up in my search. I'm not overly to worried about interfacing with Open Cockpits 7 segment adapter. I'll making my own to save a few bucks. I also found LC LED, which looks to be reasonable in price for .36". Thanks everyone for the info.
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05-15-2013, 02:50 AM #5
Re: 7 Segment Displays
Before you start comparing prices just remember that Mouser.com sells high quality components and the price is there after.
Companies on ebay (And Tayda) sell cheap products. I am not directly saying that it is low quality. I most cases it suits cockpit-building needs just fine. But of course you get what you pay for - no more no less.
(But just for the record I have nothing negative to say about Tayda Elec. and other alike vendors)
I bought my Kingbright 7-segment displays via Mouser (together with encoders and rotary switches). Shipped from Texas to Europe in 48 hours. Same product as OpenCockpits, but a bit cheaper.
EDIT: Actually the KingBright from Mouser is not the same as OpenCockpits sells, but the same as Hispapanels sels. OC is using a new/other unit now. It is a bit smaller and (As I understand) a bit brighter. But then again I focus on the yellow/amber displays.Best wishes, Peter
Building a B737NG - Blog: BuildABoing
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05-15-2013, 06:34 AM #6
Re: 7 Segment Displays
Hello skipunk, BTW, nice name
Why not call / email the company:
Innovative LED Lighting Solutions & LED Components - Forge Europa
and ask for a quota. I'm afraid you have to ask for a huge amount
to get the cost down - that's what I believe OC have done.
I see that www.farnell.com or in US www.newark.com have some of Forge Europa
components - the blue version (~$7), but not the white.
Maybe they are willing to distribute the white as well – very expensive though
And yes, LC-Led is great - I use the 0,36 size:
7 Segment White LED - Single 0.36 inch (9.14mm) Cathode LCS-3612TW1C
and as Peter, I buy from Mouser except a few good deals on Ebay, Aliexpress, Dealextreme....
Nice to hear you plan for making your own Display-II board. I’ve done the same!!
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05-17-2013, 09:19 AM #7
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Re: 7 Segment Displays
Hi,
By searching google for the same issue I found this thread. For now lc-led is also the only company I found who offers white .36" displays. Mouser has none. Same with other suppliers I know. Well it's great solution, but I have one more tricky question: does anyone have experience with +/- signs on MCP v/s display (actually, minus is not a problem, but plus...)
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05-18-2013, 05:48 AM #8
Re: 7 Segment Displays
As I recall - on my OpenCockpits MCP - there is no plus-sign.
So it is either "-" = Down or " " = upBest wishes, Peter
Building a B737NG - Blog: BuildABoing
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05-18-2013, 06:19 AM #9
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Re: 7 Segment Displays
Exactly. But it seems, that real MCP has + sign. Mouser has some displays with +, but not in white
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05-19-2013, 06:06 AM #10
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Re: 7 Segment Displays
Hi,
Probably the real ones are made to order. Titan Opto will make to order but it will be at a price.
They probably are not common so not available off the shelf. You could try ordering a sample from them if you dont need many.
Les
P.S, If you want a + sign, get a sign cut and backlight it witha white LED.
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