Search results

Search Forums New Posts
  1. 73's de Edd

    Help! Transistor radio converted into amp

    Sir Soulwyvern84 . . . . . . . I'm thinking that feat might be comparative to my using a sled dog on a "hamster wheel" to power my big Mer-say-dees . . . .MUSH ! First of all the "radio" needs to be up in the power order of a "Boom Box" to get any appreciable playing level. You might then...
  2. 73's de Edd

    Pause mode for CTEK MXS Polar charger

    . Sir smilem . . . . . In not being able to get into that units mind, and considering that the batt is already charged and presently being in that float supply level. Why not install a continously shunted in 1K resistor for being its simulated load while you then disconnect the battery...
  3. 73's de Edd

    n-mosfet replacement on Qnix lcd monitor

    . Sir AMT . . . . . .whooooops . . . my lysdexia almost made your name into a cash withdrawal machine ! You sez: Edit: I found another device with a similarly sized n-mosfet labelled APM3055L WJ15P. That number given above specs out as being "less" of a part than is presently in the unit...
  4. 73's de Edd

    n-mosfet replacement on Qnix lcd monitor

    Sir AMT . . . . . Looks like you might need yourself an IRF 540 in a D pak casing. http://www.mouser.com/Semiconductors/Discrete-Semiconductors/Transistors/MOSFET/_/N-ax1sf?P=1yzorz4&Keyword=IRF540&FS=True ( Its a golden oldie . . .even obsolete . . .for new design . . .but more 'spensive...
  5. 73's de Edd

    Amplifier Repair - electrolytic capacitors expose metal top?

    . Sir looxuser . . . . . Looks like your 13 Meggle-hurtz of compressed data has just now, finally made it down the pipeline . I now see that you must have a $ Kilobuck $ system if being totally complete. The separation of all of the different stacked units would make it hard to work on...
  6. 73's de Edd

    Quadcopter controller-board diode repair.

    . Sir AMT . . . . . In no way do I see the "SIMM" part and its specification, along with it being utilized on a video card, as being a device of this units particular specifications. Possibly,only in its having a case configuration similarity. This device is having a very low loss...
  7. 73's de Edd

    Quadcopter controller-board diode repair.

    . Sir AMT . . . . . Sounds like you done needs yourselfs a : Vishay SI2312BDS-T1-E3 . . . . . . . .low RDS . . . . .power FET http://www.mouser.com/ProductDetail/Vishay-Semiconductors/SI2312BDS-T1-E3/?qs=jcx%2b0HVgj2b3YhM4OoQ%2brQ== But, alas, then after you spends your fiffy cents, the...
  8. 73's de Edd

    help in fixing national panasonic stereo model RX - F80 - 2

    . Sir pharaon. . . . . . . . The last time I encountered a like situation, was when I had a Longines radio . . .( I'm guessing a rip off of the name of the Longines watch fame). After many-many-many repeated battery replacements , I'm sure that 1 wire of the SEVERAL stranded wires was being...
  9. 73's de Edd

    Sherwood RD-6500 A/V receiver blowing fuses

    . Sir diode . . . . . Thanks for the good quality supplemental photo. I can now differentiate between the male and female assignments of CP101 and its mate CN101. So, it looks like they decided to up the power level carrying capacity between the power supply plug and the connection at the...
  10. 73's de Edd

    Heathkit IP20 Power Supply

    .its NTC. http://www.mouser.co.uk/ProductDetail/Vishay-Dale/02C5000JF/?qs=sGAEpiMZZMuBd0%2bwiCVS2xi7CNg0ZAS/dPqJg/IIt8k= 73's de Edd
  11. 73's de Edd

    Sherwood RD-6500 A/V receiver blowing fuses

    . Sir diode . . . . . . Rejoice . . . . your answers are on the way. Herewith, one mark up on the initial relevant locations on the top of that units mainboard. When you pulled the 3 pin connector (You can see it now as GREEN CP101) you removed the main POWER AC voltage from the units...
  12. 73's de Edd

    Electrolytic Cap ID Please

    . Sir aussiedean . . . . . . Ahhhhhhh yes . . . . .and with that view, looks like its haning a very special little power transformer hiding under the wire, feeding low voltage AC to its left with an upper varistor or spike supression capacitor and then a set of (4) 1N4148's configured as a...
  13. 73's de Edd

    Electrolytic Cap ID Please

    Sir aussiedean . . . . . . Indeed . . .after looking at the two photos below, that design and parts utilized is evolved from the simplest SCR type of motor speed controller that we would have encountered initially, waaaaaay back, as early as the late 1960's timeframe. You only see the poly...
  14. 73's de Edd

    Electrolytic Cap ID Please

    . Sir aussiedean . . . . . . Le parte deux . . . . . Well I'll be bleeeeeep . . . . . In looking at the given model and brand. . . . .the Kenwood TOTALLY seems right to be associated with Electronics and the term Mixer also fits. But is it possible by the other aspects, that this is being a...
  15. 73's de Edd

    Electrolytic Cap ID Please

    . Sir aussiedean . . . . . . What rotten luck . . .your essential specs are being on the back half of it ! 73's de Edd .
  16. 73's de Edd

    removing tuned frequency

    . Sir cjdelphi . . . . . If this question is relevant to the separate post with the linearly biased inverter used in the front end of an AM receiver. All strongly received signals will come in simultaneously, moderate ones will be lost down in the din. Even with that simplistic single tuned...
  17. 73's de Edd

    Old Electronics Parts & Diagrams

    Sir Brandyn . . . . . The way that I am seeing it, is that none of the magical and mystical feats that you mentioned are being involved. The main power transformer is being the one on the bottom. If using, and having, only two leads on the upper stacked smaller transformer it must be used in...
  18. 73's de Edd

    Help! Repairing water damaged PCB from Massage chair.

    . Sir Jonawald . . . . . . . . . . . . . Consider the possibility of that AC voltage that you are now reading across those terminals as being a weak phantom / sneak path / static AC voltage. Your meter can READ presence of a voltage but not actually be able to differentiate on the POWER...
  19. 73's de Edd

    Gargoyle motion activated LED's and sound relay problem

    . Sir Camburger . . . . . . . . . . . . . Hot Dog . . . . .here . . . . . . Looks like your PIR output is not quite high enough for the drive needs / threshold of that "Fiffy" dollah "Solidified Stately Relay." Why not see if a 1 transistor addition will minimally fill your needs. I used...
  20. 73's de Edd

    help in fixing national panasonic stereo model RX - F80 - 2

    pharaon . . . . . . . . Now . . . .we see that your unit shown is being a Sony Walkman . . .wanna-be . . . as a Panasonic equivalent. So now the question is, if the problem is related to power ( I found to be two 1.5 V cells ) or its audio output. With there surely being a headphone...
Top