Mine still works, been sitting in a cupboard for past 20 odd yrs.
I just change the Batts every 8 yrs or so to keep the memory and prog from erasing itself. Still basically brand new, hardly ever used.
I have the Casio FX-785P/790 Owners Manual and the original Compunav manual..
Anyone want to make me an offer?? LOL.
Ian Boyd sold the company I think nearly 15 -20 yrs ago .
The Last contact I had with the company who took over the Compunav business was about 6yrs ago & was at this address and number which is current, they are still in business, they sell runway cones, warning balls to go on power lines, windsocks etc. I just Googled them now. they don't mention them on their site anymore--
The Guy I spoke to about 6 yrs ago was
John Walton.
Aero Associates
39 Crisp Street
PO Box 239 Cooma NSW 2630
Tel 02-6452 2000
1 800 022 277
[email protected]
www.aeroasso.com.au
I hope that helps a few of you.