Unobtanium Datasheets

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • TechGeek
    Computer Geek
    • Jan 2015
    • 2254
    • USA
    #1

    Unobtanium Datasheets

    Hi. I'm trying to find the datasheets for the following 2 IC's:

    Motorola MC74C00AN

    National Semiconductor P9730AJ

    I cannot find anything. Can anyone please help? Thanks!
    Don't buy those $10 PSU "specials". They fail, and they have taken whole computers with them.

    My computer doubles as a space heater.

    Permanently Retired Systems:
    RIP Advantech UNO-3072LA (2008-2021) - Decommissioned and taken out of service permanently due to lack of software support for it. Not very likely to ever be recommissioned again.
    Asus Q550LF (Old main laptop, 2014-2022) - Decommissioned and stripped due to a myriad of problems, the main battery bloating being the final nail in the coffin.


    Kooky and Kool Systems
    - 1996 Power Macintosh 7200/120 + PC Compatibility Card - Under Restoration
    - 1993 Gateway 2000 80486DX/50 - Fully Operational/WIP
    - 2004 Athlon 64 Retro Gaming System - Indefinitely Parked
    - Main Workstation - Fully operational!

    sigpic
    Tags: None
    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 31278
      • Albion
      #2
      Re: Unobtanium Datasheets

      74c00 is a cmos chip from late 70's, you can probably use a 74hc00
      btw, use a different search engine instead of wasting time with the fuckers at google.
      Attached Files

      if you find these attachements useful please consider making a small donation to the site

        Comment

        Previous template Next

        Related Topics

        Collapse
        • CapLeaker
          Motorola 22F43 14pin dip identify me
          by CapLeaker
          Got an old Motorola page out controller here. Something honking old. Came in as no workie. Without schematic or anything. So I did some probing around and found two 14 pin DIP IC's that I need an replacement for.
          Motorola 22F43
          Motorola 22F44
          Got no idea what these are.I got semi lucky and found a 22F44 on a donor. Unfortunately the 22F43 is already missing. If anybody knows what these are and find a cross would be greatly appreciated!
          01-21-2024, 09:12 AM
        • Ady2017
          Are there any datasheets available for Elna RJG capacitors?
          by Ady2017
          I have a 2007-era Panasonic VHS combo that is full of of Elna RJG capacitors. I am trying to test the capacitors to diagnose the machine and then select replacement capacitors but I can not find any datasheets for them. I did find a Elna catalogue from 2007-2008 but there is no mention of this capacitor series. Where these specially made for Panasonic and so not made available to the public? Any ideas what to find out what the ESR values should be without the datasheets? They are all between 10V and 50V and 47uF and 1800uF. None are leaking or bulged but I know that they need to be tested to be...
          05-25-2025, 02:19 PM
        • APOPAP
          Panasonic National NV-M3 VHS Camera shuts down after some seconds
          by APOPAP
          Hello everybody,
          First post here. I have been reading posts here for some time now, but today I made my first account and post.
          The same question is also posted on another site, here it is:

          Just found an old Panasonic National NV-M3 VHS Camera without the original charger but with a special bag with a led, switch and fuse that is designed for a lead-acid 12v 6Ah battery. It has two cables coming off the bag that leads to the camera terminals (Only + and - ). Pretty sturdy design I think.

          I tried connecting it to a Computer PSU (12.7v) but I get battery error...
          08-25-2025, 10:12 AM
        • BOSCHNJAK
          by BOSCHNJAK
          ABOUT ME INTRODUCTION FILE

          2          024 BEV, BIH, SARAJEVO START PROJECT: ELECTRIC VEHICLE TOYOTA 4 RUNNER CONVERSION http://www.bev.ba/TOYOTA4RUNNER/index.html
          2023 BEV, BIH, SARAJEVO START PROJECT: SECRETS AND MANUFACTURING PLANS (AS MY REPLICA) OF THE LIBERTY ENGINE 2.0.
          2022 BEV, PROJECT ?
          2021 BEV, PROJECT ?
          2020 BEV,BiH, Sarajevo: PROJECT IS: HOW TO SWITCH OFF PERMANENT MAGNET FIELD and HOW TO SWITCH ON PERMANENT MAGNET FIELD?
          2019 BEV, Croatia, Ston:, Broce: PROJECT - PROJEKT ELEKTRIČNI GLISER http://www.bev.ba/ELEKTRICNIVANBRODSKIMOTOR/indexHR.htm...
          12-28-2023, 02:09 PM
        • CapLeaker
          Motorola Minitor V pager no audio / sound repair
          by CapLeaker
          Got a bunch of Motorola Minitor V pagers from Fire Departments here trying to fix some out of the non working ones. These pagers are known for either no sound / audio or they don’t charge. The internet is full of suggestions like metal shavings inside the speaker?
          Anyway so I took one of the Minitor’s apart for my amusement in order to see why that is and nobody can fix em. There are no service manuals or schematics for these that I know of. However… I did find the problem!

          On the main board of this unit where the speaker connects to there is a metal shield....
          06-10-2025, 07:44 PM
        • Loading...
        • No more items.
        Working...