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  1. K

    Electronic Circuit Help

    http://www.electronics-lab.com/forum/index.php?action=post;board=13.0 Newbi needs assistance with a DC-DC Converter kit that is defective in the required IC calls for a CD4001 with 14 pins and the board has only 8 pins. I desire to redo the board as it is deffective but do not have a schematic...
  2. K

    Online electronic component suppliers based in Asia

    GO to ebay my son and type in  ic's and processors and electronic components and surf away and you will find them.  http://www.electronics-lab.com/forum/index.php?action=post;topic=20948.0;num_replies=1  They are associated with Hong Kong. I do and it works out ok.
  3. K

    Oscilloscope info

    Where does someone go without info about equipment bought used lab type with no manuel ? 1 Power supply bought used 30vdc @ 5a. 2 I have to donate to any one who needs on a Tektronicx model # 7854 on my adobe if any body needs a 90.00 manual for free plus the posibilities of oter tecktronix...
  4. K

    New to electronics

    I need assistance with two transistors and info if data sheets are available. 1. MJE3055 Data sheet and MJE3055T Data sheet to see if they are interchangeable. 2. MJE2955 Data sheet and MJE2955T Data sheet to see if they are interchangeable. One other part a IC 1. L165 DATA sheet and L165H Data...
  5. K

    audio amplifiers

    go to http;/users.otenet for a 65watt class A amplifier and search for link to Sams Electronics Web site ass agood site if you enjoy web site in Australia.
  6. K

    newbi to transistor numbers and letters after

    Can any body help a newbi to electronics with a clarification. I researched a part # IRF9540 with Digi key and got the result of  manufacture part # IRF9540NPBF. how do tellif it will work as i have the sme problem with other transistors pluss TL084 OPAMPS. The letters at the und make me unsure...
  7. K

    New to electronics

    To your question what does the MK50250N do In the book Integrated Circuit Projects By Carl J. Bergquist there is a circuit for a alarm clock with all parts plus a speaker. The part in question does most of the work and drives a hex driver plus two quad segement drivers which drives the 7...
  8. K

    New to electronics

    ;D kbyrne the MK5025ON is a ic the rest of the parts are transistors and I have a hard time  with BC & BD numbers as to finding them except a NTE replacement number. My question is an a strictly Class A Amplifier will a NTE brand transistor work out for a BD transistor or a BC transistor as...
  9. K

    New to electronics

    New to electronics hobbiest needs help finding obsolete parts as my supliers cannot handle some parts. parts needed are in small quanties only. 1. MN3001 @ 2 pieces.  2. MK5025ON  @ 1 piece.  3. BC184L @ 6 pieces  4. BC214L These parts are just a start as there are others for projects. tanks...
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