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  1. P

    Why Encoder circuits use OR logic gate and Decoder use AND?

    Yes, I know as a universal logic gate both NAND and NOR can do the same circuit implemented. But I am still willing to know why in encoder OR gate is used instead of AND gate? I am a simple theory of my own like: as "Encoder has higher numbers of inputs like 8 x 3 , so or gate do the job as it...
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    Why Encoder circuits use OR logic gate and Decoder use AND?

    Digital Encoder using logic gates ... please see this tutorial https://www.electronics-tutorials.ws/combination/comb_4.html I just want know in case of encoder why AND logic gate is not used and why in case of decoder OR gate not used?
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    Why Encoder circuits use OR logic gate and Decoder use AND?

    I am searching for answer why Encoder circuit uses OR logic gate to encode input to output and Decoder uses AND logical gate? Can anyone help me with some explanation?
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    How to connect tweeter with speaker, series or parallel?

    Yes, that's why I did not get the manual with it. This is the best ( according to seller ) what I get in my nearest electronics shop. I think I have to move 100 KM to get the better one. :( Thank you for your reply.
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    How to connect tweeter with speaker, series or parallel?

    "Happy New Year" to all:) I have bought a tweeter but did not get manual with it. I do not know how to connect it to my speaker, series connection or parallel connection. They also provide a 6.3μF 100v bi-directional ( no positive or negative symbol on it) capacitor to connect with the tweeter...
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    Need to know suitable value of capcacitor for my PCB

    Thank you.
  7. P

    Can anyone provide me a link or book how to make a woofer at home?

    Thank you, I will must try.
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    Can anyone provide me a link or book how to make a woofer at home?

    I think so, that's why I wanted to learn more and searching online. About the source: I got some info from local market that they makes speaker at various quality and prices. They showed me sample, no rating was on that! Paper made box has rating but when I connected multimeter in Ohm range...
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    Need to know suitable value of capcacitor for my PCB

    I did not find exactly 63V, 10000uf for my stk4231 ic's power supply. Instead I found 100v, Rubycon cap. Can I use 100v, when my output dc would be 51v?
  10. P

    Can anyone provide me a link or book how to make a woofer at home?

    I am searching from last 2 weeks on google on "How to make woofer / speaker" at home. I have found an assembly video on youtube : But it does not contain proper technical information such as; If I want to make / assemble / reassemble 100 watt 8 or 10 inch 8Ω woofer at home, 1. What the...
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    Can I use 12 Ohms instead of 8 Ohms speaker?

    I think it may little boomy but I wanted to test it's output. Little experiment it will be. Currently I have 8 inch 4Ω speakers but no rating printed on it :( . So I am not able to adjust it properly and when 100 w amplifier connected to these in series (4+4) as 8Ω recommended by the amplifier...
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    Can I use 12 Ohms instead of 8 Ohms speaker?

    Recommend load resistance is 8Ω, what would be happen if I use 3 speaker ( each have 4Ω) in series connection = 12 Ω? 1. Can it damage the IC ? 2. Can it damage the speaker? 3. Can it reduce speaker performance?
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    Need to know suitable value of capcacitor for my PCB

    Thanks a lot for your reply. I have a transformer build locally with the order specified: input voltage: 220-230v, 8 Amp, 35v output. I received from them: 2 input wire for 220v ac input and 2 pair of wires output for 35v ac each in the secondary. I wanted two separate 50/51v DC voltage output...
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    Need to know suitable value of capcacitor for my PCB

    Yes, I am thinking to replace all of them.
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    Need to know suitable value of capcacitor for my PCB

    I think 1N5408 is a 3.0 Amp diode. If I use 4.0 Amp- would it better? [the reason I am thinking for 4.0Amp diode is in the datasheet of stk 4231, power supply unit used "DBA 40C bridge Diode" , what was a 4.0A Single-Phase Bridge Rectifier ]
  16. P

    Need to know suitable value of capcacitor for my PCB

    Yes,..it is. Thanks
  17. P

    Need to know suitable value of capcacitor for my PCB

    Yes, datasheet of stk4231 also has a requirements of 10000uF caps, I am going to use 10000uF 63V. Thank you for your reply.
  18. P

    Need to know suitable value of capcacitor for my PCB

    I have a Transformer : 35 v ac output for 220v AC 50 hz input. Target: 45 to 51 dc output Will be used in : audio amplifier I have a pcb like image bellow: 1. I need to know what would be suitable value of capacitors beside these diodes? 2. Electronics shopkeeper told me that it will...
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    Will it effect laptop's battery if I use charger connected when fully charged?

    Yes, I think pre-installed operating system has always a possibility of inclusion of third party software like spyware! :D What I did is, I have backed up with image creation of OS installed drive. I installed OS and software in my choice. :)
  20. P

    Will it effect laptop's battery if I use charger connected when fully charged?

    Yes, I think I got what wanted.
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