Most common calculators in the forum?

[Didier Lachieze]

(09-02-2020 07:36 AM)pascal_meheut Wrote:  

(09-02-2020 03:53 AM)mobi323 Wrote:  What was the most popular HP calculator by number sold?

If I had to bet, I would say the 12C but if someone has the figures, I'm interested.

Well I don't know the sales figures but to get an idea of the popularity of the different HP calculators I took a snapshot of all HP calculators auctions posted on eBay in the Vintage Calculators section on September 2nd.

It took me sometime to clean up the data to keep only the auctions related to calculator units and not to peripherals or docs, and to map the auction titles to model names but in the end here is what I get for a total of 516 calculators on sale:

1st, the frequency of the different models, as expected the 12C is the most popular:

   

2nd, if we group by family: all 12Cs, all 41s, all 10Bs (B,BII,BII+), all 48s, all 17Bs (B,BII,BII+) .... the 12C is still ahead of the game: