2 Dec
2008
2 Dec
'08
11:52 p.m.
If it was similar to the one in the Friden 130, then it would be able to
store 4 registers of decimal numbers, since the 130 had a 4 stack
register. It had 13 digits, don't recall and used a 5 bit (pulse)
format for each number. That would suggest that there are 4 x 13 x 5 or
about 195 bits.
The site below has a good article on the Friden 132, but doesn't show
the Friden's delay line, which is mounted flat on the bottom of the
calculator below all the electronics.
I don't know if the site's owner is on this list, but there is a lot of
good information on the Friden on the site w/o having to have one or
tear yours up to look at the guts.
Jim
http://www.oldcalculatormuseum.com/friden132.html
G?ran Axelsson wrote:
<snip>
... never mind. Picture 41 shows a similar device. It was an
ultrasonic delay line. How much could be stored in such a memory?
/G?ran