Jump to content
Electronics-Lab.com Community

hotwaterwizard

Members
 View Profile  See their activity

  • Posts

    2,022

  • Joined

  • Last visited

 Content Type 

Posts posted by hotwaterwizard

  7. SL100 & SK100 transistor

    in Datasheet/Parts requests

    Posted

    Now I know why you are the way you are.
    They call it Wisdom.

    Do you know the difference between Knowledge and Wisdom?


    Knowledge is knowing what to do.
    You learn from school and books and you have Knowledge.

    Wisdom is knowing what not to do with the Knowledge.
    You learn (from the school of hard knocks) that certain things you are taught in school do not apply in real life. Therefore you have Wisdom.

  14. 12VDC @ 100ft from source

    in Power Electronics

    Posted

    Have you ever seen low voltage lighting in someones yard?
    They run over 100 feet and they do not use regulators at each junction.
    They use a large wire. You could ground the negitive to the tower and run one wire up to the lights.

    Voltage Drop Calculator

    http://www.powerstream.com/Wire_Size.htm

    http://www.csgnetwork.com/voltagedropcalc.html


    LED info
    http://www.quickar.com/ledbasics.htm

  23. BBC Micro User Port pinout

    in Datasheet/Parts requests

    Posted

    BBC Micro User parallel Port pinout
    Search Results

    http://64.233.167.104/search?q=cache:6oS1QMzr0EMJ:gja.space4me.com/things/Recovering_My_BBC_Micro.html+BBC+Micro+User+parallel+Port+pinout&hl=en&ct=clnk&cd=5&gl=us&ie=UTF-8

    Pin   Pin
    (9 P) (25 P)    PC                              BBC           Pin
    ----- ------    --                              ---           ---
    5     7        0V (Ground)                     Gnd (Ground)   1
    2     3        RxD (Data in)   --------------  TD (Data out)  2
    3     2        TxD (Data out)  --------------  RD (Data in)   3
    1     8        DCD             ---+----------  RTS            5
    6     6        DSR             ---+
    4     20       DTR             --------------  CTS            4
    7     4        RTS             ---+
    8     5        CTS             ---+

    (The +'s mean that locally on the PC DSR has to be connected to DCD and that RTS has to be connected to CTS.)


    Pin numbering
    -------------

    PC:                                           BBC:
    9-pin D-type       or: 25-pin D-type          5-pin Domino DIN-plug
                                                  (male)
    _____________      ______________                         _____
    \ 1 2 3 4 5 /             \ 1  2 .  .  .  . . 13 /                       /            \
    \ 6 7 8 9 /                 \ 14 15 .  .  .  25 /                    /    5     3  \
      ---------                     -------------------                     |         1       |
                                                                                     \    4     2  /
                                                                                        \            /
                                                                                            -----

    The views of these figures are all from the outside (the backs of the computers) into the sockets,
    i.e. they show the wiring sides of the plugs.

    Here is another one

    http://www.rtrussell.e7even.com/products/bbcwin/manual/bbcwinf.html

    BBC Micro   PC   
    DIN Plug   D25 Socket  D9 Socket   
    pin A <

  24. SPAM Unauthorized Advertising.

    in Moderator's board

    Posted

    SPAM Unauthorized Advertising.
    I have deleted so many spam messages.
    Most common Spammer
    show111
    show222
    show4444
    show5555
    show7777
    show8888

    [email protected]
    [email protected]
    www.show-digital.com

    I wish there was a way that moderators could vote off members or Ban members from their board. This person just keeps logging in on different names when one is deleted. If we could find the IP Address and lock it out from the website that would be a dream come true.
    I got 6 messages in one day for spam and the common thing was (show)
    Well show me a way to fight this problem.
    I also see that our members list has more 0 posters than people that post.
    I wonder if some of those are spammers as well.

×
×
  • Create New...