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  1. M

    Component symbol... CRT's PCB

    Hi, did you remove the part and checked for its resistance, it may be 120ohm 20 watt resistor and used in the EHT section to generate the exrra high tension voltages.. If this is bad by a dry joint at the pcb you can mount it back it should work-- if the component burnt at the middle and...
  2. M

    Need to buy component fast

    Hi Aan, please try this  URL www.dalbani.co.uk/catalogue/product_details.php?id=12370 - 32k
  3. M

    ringing detection circuit

    Hi we can also use a DIAC (conducts  at  32 volts in each diection) and this will reduce comonent count. component is ST micro DB xx
  4. M

    PCB Transfers

  5. M

    SG3524 buck converter

    Hi Noname, In amother TI application note  "SLUS180E–NOVEMBER 1999–REVISED OCTOBER 2005", i find that R6 is not commoned . current sense pot lower portion is dirctely grounded. Next i find that the output at souce of IRF540 is to be taken with some seriies resistor to guard the un committed...
  6. M

    5 volt to 3.3 volt

    Hi Audioguru, We regard you very high for the strog fundas you have and demonstrate. while so we feel some times let down by expressions
  7. M

    SG3524 buck converter

    Hi Noname, i have doubt on, whether bottom point of R6 tobe connected ground or to the Rt and Ct combined.  In another open loop test circuit, i observed that Rt and Ct are not shorted. Also please check the collectors at 12 and 13 (looped) is referes as input to IR2117 while emitters(looped)...
  8. M

    Datasheet Request

    Hi, Why "ALL' you could directly thank HOTWATERWIZARD who gave the data --
  9. M

    5 volt to 3.3 volt

    Hi AudioGURU, Yes. i couldn't size it properly--rather i had to learn how to . let us see the utility aspect of theis element for the pupose.
  10. M

    5 volt to 3.3 volt

    Hi, see the TL431 application
  11. M

    3 Legged 5600uf cap

    Hi, the third pin is generally connected to body and body itself is therwise isolated from the capacitor-- toy may check up as you have the piece acrss
  12. M

    smps modification

    Hi, Perhaps explanation insufficient-- needs elaboration  and a sketch , even to start thinking on it, please
  13. M

    IC upside down?

  14. M

    please help me .

    Hi, So, you want to test transistors while they are in the circuit.-- tell us when power in on or power supply removed? if in circuit testing is required you can test by junction voltages -if powered-- or in dide range of DMM if power is removed.-- you sshould have a comperhensive idea of...
  15. M

    problem dvd player power supply

    Hi, Noobies99 welcome to the forum and happy new year2k7 attched a datasheet for the IC-- study whether this helps you TEA152X.pdf
  16. M

    Variable Power Supply

    Hi, if you can scan the bundle of projects you find on the opening page of this site, you will go thro and you get a lot of data. eventually  lot of diacussion posts are also on this topic and i am sure you will be stomach full . all the best for 2k7
  17. M

    Happy New Year 2007

    Hi Brothers and Ssiters,       WISHING ONE AND ALL A VERY HAPPY AND SUCESSFUL NEW YEAR 2007 WITH REGARDS, Sarma [email protected] 0 91 94401 54650
  18. M

    Using LM723

    Hi A.R.mazaheri , Welcome to the fourm, i hope you appeciate that there is going tobe a power loss in the form ohest of 140Watts by designing a Linear reulator using LM723 form 65 to 45 Volts and a current demand of 7 Amps. Instead, you may consider Switching power supply to get a better...
  19. M

    Any math'a maexperts out there? Need help rearranging this formula...

    hI, iS THIS WHAT YOU WANTED IT I UNDERSTOOD PROPERLY? F= 1.44/((R1+2*R2)*C) (R1+2*R2)= 1.44/F*C 2*R2={1.44/F*C}-R1 R2=[{1.44/F*C}-R1]/2 Sarma
  20. M

    I want a name of program?

    Hi Hussainking, you may try PCB123 software is good infact. it claimed to be free. you can send the file to them and order pcb even. you may google for pcb123 Sarma
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