HP 41 PPC ROM Production Run Total

[rprosperi]

Udpate #2:

All 5000 of the original lot were pre-sold to PPC members (orders received for 2500 pcs.) and were shipped to them at the end of 1981.

HP Provided some extra ROMs to replace potential DOA units, etc. and this was between 2-3%, so a max of 150 more ROMs. After it became clear that there were few or no failures, PPC decided to sell these as there was now demand from members that regretted not doing an initial order as well as new PPC members.

It seems these were depleted by ~3/82 and a minimal order (believe 250) was placed, which accounts for the '222x' units. These seem to have lasted about a year, when a final order was placed for another minimum order of 250, and these are the '233x' marked units.

So, this nets out to 5600-5650 total ROMs produced, and explains the small mystery about the '82 production numbers folks posted.

The bad news here is even though I have ROMs from '81 and '83, the OCD collector in me is now wondering if the PPC ROMs in the collection are complete without one from all 3 production runs...