HP 9100A 50th Anniversary

[Cosmo]

(03-11-2018 05:39 PM)Jurgen Keller Wrote:  It was announced on March 11, 1968 but actually introduced in the September, 1968, Hewlett-Packard Journal. So I think it's still a bit early to celebrate the 50th anniversary.

However, I fully agree that it is a fantastic machine and I know at least of one that is still running :-)

Thanks indeed for your reply: you are right but the first HP 9100A calculators were produced in April 1968 according to serial number 816-0XYZT (16th week of the year - mid April 1968). Anyway it is of course not so important and I am glad that your calculator is still running :-) I use a very nice HP 9100B simulator only for fun but I miss the green light of the electron beam glowing on the oscilloscope-type screen and of course all the discrete diodes, transistors, capacitors, which make an a so artistic network... definitively a Legendary calculator.