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Recent content by ricoseeds

  1. R

    op amp substractor resistance for practical

    it was connected alright yet thanks a lot for replying ........ :)
  2. R

    op amp substractor resistance for practical

    I am using the 741 op amp circuit as a substractor..please tell me the value of the resistance I should choose. with 1k resistance it didnt works...The circuit I used is attached...please reply asap.. **broken link removed**
  3. R

    binary to Gray code using 74LS89 RAM chip (64bit) URGENT

    It helped a lot...will have to do that at one shot in pract exam........... Atleast have the concept now.. Thanks :)
  4. R

    binary to Gray code using 74LS89 RAM chip (64bit) URGENT

    Please tell me how to do this experiment.....never been acquinted with RAM chip in lab...Exams ahead........ Urgent help needed.... When THe RAM chip is just put ON....what value in the cells it is initialize to (74LS89)? b3,b2,b1,b0 (bin) to Gray (g3,g2,g1,g0) And also please suggest all...
  5. R

    Function implementation using RAM chip URGENT please help

    should I got to use 7404 for outputs........?
  6. R

    Function implementation using RAM chip URGENT please help

    7489 RAM chip to be used **broken link removed** DESIGN GRAY CODE TO BINARY USING 7489 IC(64 BIT RAM) *Please tell how to do this experiment in practicals :| :-? how to program the RAM...never acquainted with Ram chip......(The outputs should be verified using LEDs)* Please give details...
  7. R

    Viva questions for practical electronics

    Suggest some typical viva questions for digital electronics and the 74XX and 78XX series,op amp, transister,diodes!!
  8. R

    suggest problems on the specific issues

    Please suggest some examples for deriving 1.the mode of operation of a BJT. 2.simple Zener diode problems 3.simple diode problems 4.op amp problems(as an adder,subtracter,inverter,integrater)
  9. R

    Comment by 'jzedaker' in media '2011 10 29 16.24.14'

    :idea: greeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeaaaaat
  10. R

    MUX design using 8X1 MUX please help

    F(A,B,C,D)=SOP(0,1,3,4,8,9,15) Use a 8X1 MUX and implement using (i)A,C,D (ii)A,B,D as Select lines! URGENT! :-|
  11. R

    pattern detector need help

    Draw a synchronous sequential circuit with a single input line x and a single output line z ,so as to produce an output z=1 whenever a input sygnal completes a sequence of 4 identical bits,the out is 0 otherwise.Please write the boolean function expression
  12. R

    some questions- need help

    1.meaning of i-cube of a karnaugh map 2.which one is divisible by 11111011 a.11100111 b.11100100 c.11010111 d.11011011 3.what will be the size of ROM that is used to realize a 8X8 binary multiplier unit 4.example of a self dual? 5.what is 'minimisation theorem' for boolean alzebra 6.state one...
  13. R

    potential drop w.r.t ground

    Correctly said...I misdrawn It I redrawn it again..please help!
  14. R

    potential drop w.r.t ground

    node A is the node across 5 ohm resister determine the potential of node A with respect to ground
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