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  1. zlatkoMM

    LED slim tube LED driver replacement

    2 LEDS are in serie with resistor which i don't know what value it .is printed on pcb so 36 pairs in paralel to DC power supply.I hope that is clear now? Cap is 10uF/350V There is no fuse.
  2. zlatkoMM

    LED slim tube LED driver replacement

    I agree too many unknown things and different options of course this 2 strips are in paralel each of them have 72 led diodes each 2 diode are with resitor,checked with meter 2 light so 2 are in paralell how i already explain .Well i will find transformer and checked it with power supply
  3. zlatkoMM

    LED slim tube LED driver replacement

    @KLAUS Well maybe ..you must know i don't build this strips .they are fabricated probably in China... @treez section of 2 led diode and resistor are in parallel with DC power rail ,so there is 36 sections in one strip inside plastic tube there are 2 such a strip, and you probably see...
  4. zlatkoMM

    LED slim tube LED driver replacement

    @ZASto that is good idea...how is connected...it is on the image in above post! This is my simulation 1619249134 If the resistor is 1k then current is 16 mA...but is almost impossible to tell what kind of led diodes are used in strip i can guess 3.4V
  5. zlatkoMM

    LED slim tube LED driver replacement

    First .thanks for reply @treez I am not a kid ,i fixed many electronics radios,TV but never such a things like LED lights you asking about how diodes are connected i already show you on a given image from (+) goes one diode then i guess is resistor in serie then another diode ,all that in...
  6. zlatkoMM

    LED slim tube LED driver replacement

    Hi ...that i know requirement for this strips then i don't ask,,but i dont know and there is no any data we can found on internet. This is slim flat 2 strips tube ,replacement for standard fluorescent light 120cm length. it is powered by mains 220AC ,driver is broken-burned because of cheap...
  7. zlatkoMM

    LED slim tube LED driver replacement

    hello I have blow up slim LED tube with 2 strips ,each strip have 72 LED chip diode what would be easiest LED driver replacement i can build myself?
  8. zlatkoMM

    LM741 Bass/Treble & Volume Control

    Yes i have something similar ... ahh i see i think that noninverting require 10k resistor to work ..
  9. zlatkoMM

    LM741 Bass/Treble & Volume Control

    There is no need to worry about quality of 741 ( i have few which are still working ) in metal case here is good one : https://www.circuitspedia.com/wp-content/uploads/2018/02/bass-treble-controller-circuit-diagram.jpg
  10. zlatkoMM

    CANEDA Analog Electronic Simulator?

    I recently found on github open source electronic simulator called CanEda. Program is based on QT and looks that work fine on my windows 7 machine. But i cannot found documentation and any examples how to work with this simulator .. Is anyone here who have experience with this new program...
  11. zlatkoMM

    MiniFM-Oldie Receiver

    This receiver can work in two mode. As regenerative or super -regenerative what depends on base current biasing. Most of zero IF receivers are synchro-dyne types and as such are not in co-relation with pulse-counting detectors.Pulse counting receivers are not zeroIF types than use very low IF...
  12. zlatkoMM

    MiniFM-Oldie Receiver

    There is a nice schematic in Fig.5, but the loop is hand sensitive. To overcome this disadvantage and because i dislike tapped coils, i've synthesized an aperiodic preamp like in Fig.6 and an colpitts-like common base oscillator with feedback from collector to emitter, coupled them by small C...
  13. zlatkoMM

    Really the Best Freeware EM program for patch antenna?

    ok but they not freeware or open source
  14. zlatkoMM

    Really the Best Freeware EM program for patch antenna?

    Yes not easy to found ,but there are some programs but not work or are without download link? Also there are few or better to say more than 5 methods how you can do that and that give real results..
  15. zlatkoMM

    Really the Best Freeware EM program for patch antenna?

    Thank you guys for replay! Bot no one of you dont put me in right direction. open e emco is as 64bit software... i have found some strange programs for patch antennas and nost of them require complicated download of python and other complex dll-s to work with them like maxFEM for example...
  16. zlatkoMM

    Really the Best Freeware EM program for patch antenna?

    I understand that similar questions are posted already on forum but there is no any final answer? Which one is really simpliest or easier to use patch antenna program which can produce RF current density on a given patch without to much complications? Of course program must have windows version...
  17. zlatkoMM

    Ultra SW or VHF radio receiver

    And here is one strange receiver..
  18. zlatkoMM

    Ultra SW or VHF radio receiver

    Ever want to build simple rceiver which can pick up almost any range you want? You must try to build this one. https://theradioboard.myfastforum.org/
  19. zlatkoMM

    Help to run external speaker for my mp3 player

    Maybe this small picture will help you ...

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