Interesting displays

[Nicholas Stock]

https://www.ebay.com/itm/147085235938

#notmyauction etc etc...

Nick

[Tom Katt]

I really love those old led matrix displays - especially classic red ;-)  Might have seen my Jan 7 post in the VFD thread about the clock that I built with them ( Surplus POS VFD displays)...

FYI - you can still get those for a good price here: Lot of 4 - IEE - LRT1704R - Opto Display. 5 x 7 Alpha-Numeric Dot Matrix Display | eBay

notmyauctioneither ;-)

[gregebert]

Sounds like LEDs are becoming as retro as nixies

[Tom Katt]

Certainly seems like at least the red ones are lol...  You barely see red leds in consumer products - everything has those gawd awful blinding blue things for some reason.  Remember when blue leds were still just a scifi dream?

[Adrian Godwin]

One thing I'm surprised not to see more love for is plasma displays. The colour of neon with the adaptivity of matrix lcd. Some even have 2 colours. I'm most familiar with pinball ones but they developed from 7-segment to matrix.

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[Tom Katt]

On Monday, January 12, 2026 at 1:11:21 PM UTC-5 Adrian Godwin wrote:

One thing I'm surprised not to see more love for is plasma displays. The colour of neon with the adaptivity of matrix lcd. Some even have 2 colours. I'm most familiar with pinball ones but they developed from 7-segment to matrix.

 I see a Panaplex d7 seg display once in a while but the pinball folks tend to grab them up (I have a 1983 Bally Centaur machine with them ;-).  I think part of it is the difficulty in driving the more complex dot matrix plasma panels - not nearly as easy as driving nixies.  But I've been in love with them ever since I saw a friend bring over his Compaw 'Portable' pc that had a plasma monitor built in - if I could afford one in working condition I'd buy it just to run a screensaver lol.

[Adrian Godwin]

On Mon, Jan 12, 2026 at 6:21 PM Tom Katt <tomk...@gmail.com> wrote:

But I've been in love with them ever since I saw a friend bring over his Compaw 'Portable' pc that had a plasma monitor built in - if I could afford one in working condition I'd buy it just to run a screensaver lol.

Grid Compass ? HP Integral ?  Probably even rarer :).