New HP-71 zebra strips?

[mfleming]

(06-11-2022 10:04 PM)Jeff_Birt Wrote:  

(06-11-2022 09:01 PM)mfleming Wrote:  Flex ribbon cable can now be ordered in single quantities from Colorado-based Osh Park. I've used them in the past year and the quality is quite good. See below for details

https://docs.oshpark.com/services/flex/

Are you suggesting making a flex PCB to replace the original ribbon cable on the HP-71s that used that type of connection.

Yes indeed. There are a number of places where HP used a flex circuit for connections, including their thermal printers and the HP 97. The source of flex circuits I used prior to Osh Park required a minimum order of ~$80-100 for a batch of flex.

I made a flex to replace the zebra strip in the HP-41. That idea was greatly improved upon by The Calculator Store. That approach may not be needed now with the availability of real zebra strips, though I imagine the minimum order requirement remains.

~Mark