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
.
Van: [email protected] [mailto:[email protected]] Namens
Mark Moulding
Verzonden: zaterdag 19 december 2020 9:55
Aan: neonixie-l
Onderwerp: Re: [neonixie-l] First LED displays
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
On Friday, December 18, 2020 at 8:38:45 PM UTC-8 nixiebunny wrote:
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.
On Fri, Dec 18, 2020, 6:06 PM peter bunge < <mailto:[email protected]>
[email protected]> wrote:
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?
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