Very small displays, 7-segment and alphanumeric

[Mads Aggerholm]

Good day everyone.

I'm new to this forum, and english is not my native language, so if this is
the wrong place to ask, please let me know.

I've tried hard to find *very* small displays on the internet, but with no
luck so far.
I'm looking for displays containing only one digit, 7-segment and
alphanumeric, and four, sperated by a colon two by two.
The height should be not more than 4, max. 5 millimeters. My father had two
of them once, so they must exist.

If it is possible, different colors would be nice to have too.

I need them to make a scoreboard for a race-track:
Recently I made "The worlds smallest race track" (

) and now my next project is to
make one that is even smaller!

I hope you can help me on this one.

Sincerely/Best regards
Mads Aggerholm

 

[Jamie]

Good day everyone.

I'm new to this forum, and english is not my native language, so if this
is the wrong place to ask, please let me know.

I've tried hard to find *very* small displays on the internet, but with
no luck so far.
I'm looking for displays containing only one digit, 7-segment and
alphanumeric, and four, sperated by a colon two by two.
The height should be not more than 4, max. 5 millimeters. My father had
two of them once, so they must exist.

If it is possible, different colors would be nice to have too.

I need them to make a scoreboard for a race-track:
Recently I made "The worlds smallest race track" (

) and now my next project is
to make one that is even smaller!

I hope you can help me on this one.

Sincerely/Best regards
Mads Aggerholm

Are you referring to the old style bubble type LEDs?

some came in clusters(arrays), and I suppose there was alpha types.

I think I have some in my drawers, get back to me if this is what
you're looking for..

Jamie

 

[Mads Aggerholm]

Thanks for the input everybody.

Of course, I forgot to mention it should be LED type displays.

I have found a picture on the internet that looks a little like the ones my
father had:
http://farm4.static.flickr.com/3244/2515919312_d1014ab2d8.jpg

Sincerely/Best regards
Mads Aggerholm

 

[Mads Aggerholm]

"Jamie" skrev i meddelelsen
Are you referring to the old style bubble type LEDs?

some came in clusters(arrays), and I suppose there was alpha types.

I think I have some in my drawers, get back to me if this is what you're
looking for..

Jamie

Well, not exactly. I believe bubble-type could be used, but they are
"viewing angle sensitive", and they need multiplexing. And they normally
have 8-10 digits, and that is far more than I need.

But thanks for the effort.

Sincerely/Best regards
Mads Aggerholm

 

[Tilmann Reh]

I've tried hard to find *very* small displays on the internet, but with no
luck so far.
I'm looking for displays containing only one digit, 7-segment and
alphanumeric, and four, sperated by a colon two by two.

What about a small graphical OLED display? You would use only those few
pixels needed for the digits, the rest of the display becomes the black
background.
(I must however confess that I didn't check the availability of such
displays yet, but it might be an idea...)

If it is possible, different colors would be nice to have too.

With OLED, you'd get only one color, however.

Tilmann

 

[Nick]

I've tried hard to find *very* small displays on the internet, but with
no
luck so far.
I'm looking for displays containing only one digit, 7-segment and
alphanumeric, and four, sperated by a colon two by two.
The height should be not more than 4, max. 5 millimeters. My father had
two
of them once, so they must exist.

Have you looked at HPs vintage 7-segments like HP5082-7430 series yet? Like
these:

or here

http://elabz.com/arduino-nano-and-hp5082-7433-vintage-7-segment-led-display/

Their digits are 2.8mm hight and you can do a capital "A" and a lowercase "b"
with 7 segments without a problem. In fact, you can do enough letters for a
few more tracks, the first letter that does not work with 7 segments is "K".
But the best feature of those tiny displays is that they have great output at
only 5mA per segment and can be driven straight from an MCU. And they look
very retro, too!

Nice video, BTW, pretty funny.

Cheers!


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[Mads Aggerholm]

"Nick" skrev i meddelelsen



Have you looked at HPs vintage 7-segments like HP5082-7430 series yet?
Like
these:

or here

http://elabz.com/arduino-nano-and-hp5082-7433-vintage-7-segment-led-display/

I have forund pictures and descriptions of different displays around the
web, but the problem is the 'vintage'-part. Those could work fine, but are a
little hard to come by. I have so far found none that is for sale.

Their digits are 2.8mm hight and you can do a capital "A" and a lowercase
"b"
with 7 segments without a problem. In fact, you can do enough letters for
a
few more tracks, the first letter that does not work with 7 segments is
"K". But the best feature of those tiny displays is that they have great
output at
only 5mA per segment and can be driven straight from an MCU. And they look
very retro, too!

I could make the letters in an other way, the writing will always be the
same. Maybe cut out of cardboard and a LED behind it. But the numbers have
to be displays!

Nice video, BTW, pretty funny.

Thanks very much!

/Mads

 

[Cydrome Leader]

Thanks for the input everybody.

Of course, I forgot to mention it should be LED type displays.

I have found a picture on the internet that looks a little like the ones my
father had:
http://farm4.static.flickr.com/3244/2515919312_d1014ab2d8.jpg

Sincerely/Best regards
Mads Aggerholm

I've been looking for those too, HP or agilent discontinued them years
ago. The last samples I had I somehow broke or lost.

they "spoke" 4 bit BCD for the alphanumeric versions.

 

[Cydrome Leader]

I have forund pictures and descriptions of different displays around the
web, but the problem is the 'vintage'-part. Those could work fine, but are a
little hard to come by. I have so far found none that is for sale.

Let me know if you find any sources.

If you really want to go crazy, try to find the 7 segment indicator
displays that had individual tungesten filaments for each segment. they
were made like vacuum flourescent displays.

I last saw them for something like $50 each on the Allied catalog about 20
years ago.

 

[Cydrome Leader]

Let me know if you find any sources.

If you really want to go crazy, try to find the 7 segment indicator
displays that had individual tungesten filaments for each segment. they
were made like vacuum flourescent displays.

I last saw them for something like $50 each on the Allied catalog about 20
years ago.

here we go, for really small incandescent indicators!

check out the KW105S

http://www.surplussales.com/Bulbs-Incan-Panel/VacDisplay.html

surplus sales is a very strange place. I went there once.

 

[Cydrome Leader]

Let me know if you find any sources.

If you really want to go crazy, try to find the 7 segment indicator
displays that had individual tungesten filaments for each segment. they
were made like vacuum flourescent displays.

I last saw them for something like $50 each on the Allied catalog about 20
years ago.

forgot the other link, for the LED display

http://www.surplussales.com/Bulbs-Incan-Panel/LEDDisplay.html

 

[[email protected]]

On Oct 30, 10:59 am, "Mads Aggerholm"

I've tried hard to find *very* small displays on the internet, but with no
luck so far.
I'm looking for displays containing only one digit, 7-segment and
alphanumeric, and four, sperated by a colon two by two.
The height should be not more than 4, max. 5 millimeters. My father had two
of them once, so they must exist.

Several small displays are shown at
http://www.decadecounter.com/vta/tubepage.php?item=33

The DL1414 is has "magnified" height of 0.112". Data sheet at
http://www.decadecounter.com/vta/pdf2/DL1414.pdf

The ones in your video appear to be un-magnified (no distortion due to
the lens), so I am guessing they could be MAN-3 displays.

Unfortunately, most or all of these are obsolete, and may be difficult
to obtain. They were the latest technology in the 1970s.

 

[Jamie]

I have forund pictures and descriptions of different displays around the
web, but the problem is the 'vintage'-part. Those could work fine, but
are a little hard to come by. I have so far found none that is for sale.


I could make the letters in an other way, the writing will always be the
same. Maybe cut out of cardboard and a LED behind it. But the numbers
have to be displays!


Thanks very much!

/Mads

you can get chip leds and solder them on a board in the format you wish..

Jamie

 

[Mads Aggerholm]

skrev i meddelelsen

On Oct 30, 10:59 am, "Mads Aggerholm"
Several small displays are shown at
http://www.decadecounter.com/vta/tubepage.php?item=33

The DL1414 is has "magnified" height of 0.112". Data sheet at
http://www.decadecounter.com/vta/pdf2/DL1414.pdf

The ones in your video appear to be un-magnified (no distortion due to
the lens), so I am guessing they could be MAN-3 displays.

Unfortunately, most or all of these are obsolete, and may be difficult
to obtain. They were the latest technology in the 1970s.

I have found the www.decadecounter.com, but the "obsolete"-part is
definitely the spoke in the wheel.

No, the ones I use is 5 mm displays, bought in a store.
But now you mention it, the ones my father had many years ago, actually was
MAN-4.

And I can see I asked for "4, max 5 millimeters".
5 millimeters is easy to obtain, and they are too big. It should be more
like "3, max 4 millimetres".

When a model is this small, it takes almost nothing for items to get too
big.

 

[Sergey Kubushyn]

Don't know how many of them do you need but here are some green ones:

http://www.ebay.com/itm/6x-Vintage-...pt=Vintage_Electronics_R2&hash=item2c68f7f99e

and red ones:

http://www.ebay.com/itm/6x-Vintage-...pt=Vintage_Electronics_R2&hash=item2ec07d0d16


It looks like nobody makes something like these any more. I tried to
find anything like these of recent manufacturing (I would like to
purchase bigger quantity, something like a hundred of each color) to no
avail.

Those russian ones are pretty decent, I used them a lot when I was
living in USSR something like 20 years ago.

 

[Mads Aggerholm]

"Sergey Kubushyn" skrev i meddelelsen


Don't know how many of them do you need but here are some green ones:

http://www.ebay.com/itm/6x-Vintage-...pt=Vintage_Electronics_R2&hash=item2c68f7f99e

and red ones:

http://www.ebay.com/itm/6x-Vintage-...pt=Vintage_Electronics_R2&hash=item2ec07d0d16


It looks like nobody makes something like these any more. I tried to
find anything like these of recent manufacturing (I would like to
purchase bigger quantity, something like a hundred of each color) to no
avail.

Thanks *very* much!

I've been trying to find this for months - also on eBay!
What did you search for on eBay to find these?

/Mads

Those russian ones are pretty decent, I used them a lot when I was
living in USSR something like 20 years ago.

 

[Sergey Kubushyn]

Thanks *very* much!

I've been trying to find this for months - also on eBay!
What did you search for on eBay to find these?

I simply check what that guy has for sale from time to time He has some
interesting "old" stuff that is impossible to find anything else. I'm
buying 2D524 snap-off diodes, 1I308B tunnel diodes, and high-voltage
rectifiers from him right now... Those are nowhere to be found or you are
charged arm and leg for something like that.