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Recent content by simoV8

  1. S

    Vcc, Vdd, Vss

    If the source goes to negative(vss) is that the same as return voltage??
  2. S

    MC 6802 with no read write

    i'll test that, (i will get that tested) Thanks
  3. S

    MC 6802 with no read write

    What i should have asked ,, why is the outboard crystal there , (if it's not a problem) ,,, i am new to this sort of eleltro . thanks till
  4. S

    MC 6802 with no read write

    why is the external (outboard)crystal there if it's not needed ??
  5. S

    MC 6802 with no read write

    G'day guys , I'm still trying to figure out why there is no read write on the MC6802. It's in a pinball mpu, (IC 1 ) , the circuit board tracks etc ,are in great condition, it has an external crystal ,,,, could that be the problem ???
  6. S

    Draining phone batteries

    I'll check the spec sheet , when i find it, thanks
  7. S

    Draining phone batteries

    Nigel , is the safe discharge for batteries worked to a percent of full charge ( eg . a new car batt fully discharged a few times seems to wreck them ) ,,?? .. Also a mate of mine got a mobile phone the same as mine ,(same shop, one day later , and his batt died a few months ago and mine's...
  8. S

    TTL CMOS whats the difference

    Sorry Nigel , i should have said suggested,
  9. S

    TTL CMOS whats the difference

    "What is " works really well thanks Simo
  10. S

    TTL CMOS whats the difference

    And after having a sqizz at the site nigel recomended (great site ) Your last words ring loud,, Geez i'v got some learning to doo
  11. S

    TTL CMOS whats the difference

    SupeR NovA . The, LOL, was for your sign off .
  12. S

    TTL CMOS whats the difference

    Thanks Nigel Ill have a sqizz at that ,
  13. S

    TTL CMOS whats the difference

    MOSFET ?? I probably shouldnt even go there , but could you explain Simo
  14. S

    TTL CMOS whats the difference

    LOL ,, Sounds like a tricky one,, Thanks Simo
  15. S

    TTL CMOS whats the difference

    Whats the difference of TTL to CMOS
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