Casio Commodore AL-1000 Nixie Tube Calculator.

For Sale (Expensive!....but worth it!).
Arguably the first Programmable Calculator, this is a historically relevant device that any vintage computer investor or hobbiest will be pleased to own. The electronic architecture predates LSI chip models, and even predates TTL logic powered machines. The design uses a combination of discrete diodes, transistors and magnetic core memory.

[@kimberlymcgee1546]

I found the boards, power supply, and display for this calculator in an 1800's house that has been used for storage since the 60's. I wired it up and it worked!

[@nixietubes]

@Ryan Bigger damn right it is