Peter's z80.eu site blog
Texas Instruments SR-51-II ... a more complex calculator than you think 
Friday, November 8, 2013, 12:00 AM
Posted by Administrator
This was a mixture between an older SR-51A and the later TI-55, it's inner electronics is more complex than comparable other TI models of the same decade.
My own one is working, but in a less desirable condition, around the power switch, painting is already gone. Also, I had to open it because the display was not fitted correctly (see second picture how to open).


How to open... somewhat tricky, also because the plastic material is a bit brittle.

add comment ( 188 views )   |  permalink   |  related link   |   ( 3.1 / 4978 )

<<First <Back | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | Next> Last>>