Hi Keith, If I remember correctly the cells from that calculator used a cam arrangement driven by a miniature servo motor. Clever idea but I think the resultant cell size was a little larger than standard. Unfortunately I have not seen one in a long time. I'll if I can find an old contact at Robotron. (I've known Tim a very long time - best not to count the years.) (Sorry list - I realise this is a bit off topic.) All the best, Nigel Pentronics 33B Sheppard Road EMU PLAINS NSW 2750 AUSTRALIA PO Box 965 PENRITH NSW 2751 Tel. +612 4735 7355 e-mail service@xxxxxxxxxxxxxxxxx web. www.pentronics.com.au -----Original Message----- From: optacon-l-bounce@xxxxxxxxxxxxx [mailto:optacon-l-bounce@xxxxxxxxxxxxx] On Behalf Of Keith Shaw Sent: Tuesday, 13 January 2009 10:33 AM To: optacon-l@xxxxxxxxxxxxx Subject: [optacon-l] Re: TSI and the Good Old days! Nigel, I'm out in Massachussetts, USA, and have been looking for a Leo Calculator. Why? Well, I have assembled a pretty interesting museum of braille cells over the past 10 years and the unit manufactured in Australia by Robotron is still missing. Are there still some Leo units floating around in Australia, in whatever condition, someplace? By way of introduction: Tim McConnell (Quantum Technology) and Judy Adams (ex TSI) who was a super person to interact with when I was in Sunnyvale organizing the transition to Blazie Engineering of the TSI Blindness Division. Regards, Keith Shaw to view the list archives, go to: www.freelists.org/archives/optacon-l To unsubscribe at any time, just send a message to: optacon-l-request@xxxxxxxxxxxxx with the word "unsubscribe" (without the quotes) in the message subject. Tell your friends about the list. They can subscribe by sending a message to: optacon-l-request@xxxxxxxxxxxxx with the word "subscribe" (without the quotes) in the message subject.