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HP 75 Cat?
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03-09-2017, 11:10 PM
(This post was last modified: 03-09-2017 11:16 PM by Dave Frederickson.)
Post: #22
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RE: HP 75 Cat?
Blank (unprogrammed) is probably incorrect as these are probably mask programmable and not OTP. So, 82726A is not the product number specifically for the WRITE39 ROM as many custom 8K ROM's will have that product number.
Also, the ODS ROM, 82720A, is an older product number for an 8K custom ROM. Dave |
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HP 75 Cat? - HP-Collection - 03-07-2017, 09:10 PM
RE: HP 75 Cat? - rprosperi - 03-07-2017, 11:35 PM
RE: HP 75 Cat? - Dave Frederickson - 03-07-2017, 11:51 PM
RE: HP 75 Cat? - rprosperi - 03-08-2017, 12:09 AM
RE: HP 75 Cat? - Dave Frederickson - 03-08-2017, 12:53 AM
RE: HP 75 Cat? - J-F Garnier - 03-08-2017, 01:45 PM
RE: HP 75 Cat? - rprosperi - 03-08-2017, 02:34 PM
RE: HP 75 Cat? - J-F Garnier - 03-08-2017, 04:18 PM
RE: HP 75 Cat? - HP-Collection - 03-08-2017, 07:19 PM
RE: HP 75 Cat? - J-F Garnier - 03-08-2017, 08:07 PM
RE: HP 75 Cat? - rprosperi - 03-08-2017, 11:12 PM
RE: HP 75 Cat? - J-F Garnier - 03-09-2017, 07:59 AM
RE: HP 75 Cat? - HP-Collection - 03-09-2017, 07:23 AM
RE: HP 75 Cat? - charger73 - 03-08-2017, 02:42 PM
RE: HP 75 Cat? - HP-Collection - 03-09-2017, 09:01 AM
RE: HP 75 Cat? - Paul Berger (Canada) - 03-09-2017, 01:20 PM
RE: HP 75 Cat? - HP-Collection - 03-09-2017, 01:37 PM
RE: HP 75 Cat? - J-F Garnier - 03-09-2017, 04:02 PM
RE: HP 75 Cat? - HP-Collection - 03-09-2017, 05:28 PM
RE: HP 75 Cat? - Dave Frederickson - 03-09-2017, 08:14 PM
RE: HP 75 Cat? - HP-Collection - 03-09-2017, 10:22 PM
RE: HP 75 Cat? - Dave Frederickson - 03-09-2017 11:10 PM
RE: HP 75 Cat? - HP-Collection - 03-10-2017, 01:04 AM
RE: HP 75 Cat? - rprosperi - 03-10-2017, 01:59 AM
RE: HP 75 Cat? - HP-Collection - 03-10-2017, 09:51 AM
RE: HP 75 Cat? - rprosperi - 03-10-2017, 01:44 PM
RE: HP 75 Cat? - HP-Collection - 03-10-2017, 02:30 PM
RE: HP 75 Cat? - HP-Collection - 04-11-2017, 11:16 AM
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