something interesting

[Don Shepherd]

A stylus hexadecimal adder.

I've never seen one of these before.

[rprosperi]

(07-11-2018 01:15 PM)Don Shepherd Wrote:  A stylus hexadecimal adder.

I've never seen one of these before.

Very interesting device Don, thanks for sharing this. As I see it is now sold, did you get it? If so, I'd love to see some notes about how it works, etc. once you've explored it.

[Don Shepherd]

(07-11-2018 01:19 PM)rprosperi Wrote:  

(07-11-2018 01:15 PM)Don Shepherd Wrote:  A stylus hexadecimal adder.

I've never seen one of these before.

Very interesting device Don, thanks for sharing this. As I see it is now sold, did you get it? If so, I'd love to see some notes about how it works, etc. once you've explored it.

No, I saw it on "completed" listings. Somebody else got it. But I don't think I would have paid that much ($50).

[Bill (Smithville NJ)]

(07-11-2018 01:15 PM)Don Shepherd Wrote:  A stylus hexadecimal adder.

I've never seen one of these before.

Hi Don,

I've never seen this one, but I seem to remember having one that was like a circular slide rule. I did some googling and came up with some references to the original company and some additional info on the HexAdder.

Original company is still in business:
HEXCO, Inc

Museum reference (another rabbit hole to go down):
Southwest Museum of Engineering,Communications and Computation

David's Calculating Sticks

National Museum Americal History

Bill
Smithville, NJ

[Don Shepherd]

Thanks Bill, fascinating stuff.