First LED displays

[peter bunge]

Can anyone remember what the first LED displays looked like?

My first experience was with a 3 digit multiplexed display with bubble magnifiers. Did these come out before the single 7 segment displays with bigger digits?

Did Numitron incandescent come out before the LED displays?

[David Forbes]

The Monsanto MAN-1 was just about the first. It was a calculator sized single digit in a 10 pin flatpack with staggered pins. 

HP made their display with a controller chip in it soon after. 

I have a huge three ring binder full of display brochures from 1969 that I found at Black Hole surplus about 20 years ago. It's an amazing collection of advanced and obsolete technologies. 

 

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[Mark Moulding]

I believe that the Monsanto MAN-1 was the first commercially available 7-segment LED display.  It was introduced in 1969, but was so expensive (~$300 each, or $175 in 1000s) that it didn't get much use until later in the 70s.

I was surprised to find that the Numitron (or its ilk: Minitron, Apollo IEEE, and Wamco, and the Russian IV9 and IV16) was also introduced around that time.  All of the data sheets I have (that are dated - many are not) were published around 1972. The Numitron was certainly a mature technology by that time, but given that its fundamental technology had been available since the 1920s, I would have thought it to have been available much earlier.

~~
Mark Moulding

[Dekatron42]

There is a list of when things were available and also some nice brochure material for Monsanto in the book here: https://groups.google.com/g/neonixie-l/c/GijOD7OJWOE/m/fRqcfctBAgAJ

/Martin

[Tidak Ada]

I have here a foulder that shows a green Monsanto LED (MV2) with a price of Hfl. 550,- (Only visible in the dark!). Before Jan 1970

 

Later prices:

                        (Jan. 1970)               (May 1971)               (Jan 1972)                (Aug 1972)

MV2               Hfl. 25,00                  Hfl. 25,00                  Hfl.  23,25                 Hfl. 23,25

MAN1:                                               Hfl. 56,50  ;               Hfl. 40.50                  Hfl. 37,50     

Special kit offer visible LED’s 1971: 1×MV10V;  2×MV50;  1×MV10B;  1×MV1;  1×MV2;   1× MV5022            Hfl. 45,00

1Hfl is about US$ 0.3571 in that time

 

Cheers,

eric

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[gregebert]

Shortly after, the MAN-2 came out. It's a 5x7 matrix and could display the ASCII character set. I still have 2 samples my father got from a vendor sometime around 1973. That was the beginning of the end for nixies.

[Yohan Park]

Not for the Russians it wasn't... ;)