Jaap Scherphuis | The Solo Handy Calculator / Chadwick Mini-Calculator / Neckermann Haushaltkalkulator @jaapsch2 | Uploaded October 2020 | Updated October 2024, 52 seconds ago.
The Chadwick Mini-Calculator and the Neckermann Haushaltkalkulator are rebranded versions of the Solo Handy Calculator. It was made in Japan in the late 1960s and early 1970s.
For more information on this and other calculators in my collection, visit my website:
jaapsch.net/mechcalc
0:00 Introduction, History
1:34 Addition
2:24 Subtraction
2:42 Clearing
2:55 Outro
The Chadwick Mini-Calculator and the Neckermann Haushaltkalkulator are rebranded versions of the Solo Handy Calculator. It was made in Japan in the late 1960s and early 1970s.
For more information on this and other calculators in my collection, visit my website:
jaapsch.net/mechcalc
0:00 Introduction, History
1:34 Addition
2:24 Subtraction
2:42 Clearing
2:55 Outro
