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I just saw this calculator at Aliexpress. To the best of my knowledge, this is the first resistor color code calculator as a stand-alone device:

https://www.aliexpress.com/item/32839031418.html

Wow! Cool project.
Back in the 70’s I had the following dedicated “device” to look up resistor color codes.

Related: (42S) Resistor Color Code to Numerical Value

(04-17-2022 07:10 PM)celltx Wrote: [ -> ]I just saw this calculator at Aliexpress. To the best of my knowledge, this is the first resistor color code calculator as a stand-alone device:

https://www.aliexpress.com/item/32839031418.html

There was a thread on this board to turn that into an RPN calculator.

https://www.hpmuseum.org/forum/thread-13...hlight=stc