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Recent content by bunalmis

  1. B

    Scrapyard in Budapest.

    Hello friends living in Hungary.I just moved to Budapest. I don't know this city. If there is a scrapyard where electronic and mechanical scrap devices are sold, can you write its address? (electric motors, faulty electrical cards, shafts for linear motion, etc.)I searched on the internet but...
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    What is the difference in the internal structures of electrolytic capacitors with the same capacitance value but different voltages?

    What is the difference in the internal structures of electrolytic capacitors with the same capacitance value but different voltages?
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    What is the connection technique of conductive paths and SMD materials in this circuit?

    I'm researching to see if I can do roughly the same.
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    What is the connection technique of conductive paths and SMD materials in this circuit?

    Wire bonding technique is used for the chips and connectors, but what about the others? How are the conductive paths made in the circuit in the photo? How are the smd resistor, capacitors and paths connected? The conductive parts of the smd resistor and capacitors are painted with a brown...
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    Why does the ohmic value measure differently?

    Yes you are right. I tested that the ohmic value of a coil with an air core value of 1mH remained almost constant in the range of 40Hz ..10Khz.
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    My location changed to Turkey.

    My location changed to Turkey.
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    Why does the ohmic value measure differently?

    I measure the inductance and ohmic value of the secondary winding of a transformer at 40Hz and 400Hz with an LCR meter. Why does the ohmic value measure differently? Z=0.1948 Ohm Theta 85.85 Degree F=40Hz L=777.24uH R=0.0145 Ohm Z=1.8551 Ohm Theta 83.87 Degrees F=400Hz L=734.21uH...
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    I need to camera for STM32F407. But I dont know part name.

    Hii, I want to buy camera module for STM32F4 Discovery kit. (CPU name is STM32F407) But I dont know any part number for camera. Can you suggest to me any camera for this purpose?
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    virtual ground on op-amp?? help needed

    Yes, sory I wrong wrote. Max input voltage range is 5v pp.
  10. B

    information about three basic formulas in DSP

    DSPRelated.com
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    virtual ground on op-amp?? help needed

    In this circuit, the AC signal puts on the 2.5 volts DC. (2.5v is our offset) ADC input voltage remains within 0 to 5 v if audio signal is max 2.5 vpp.
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    virtual ground on op-amp?? help needed

    You can use this schematics.
  13. B

    AC constant current source with constant frequency

    Vcc=16v Vce=-16v 0 < Load < 12K (Capacitive, resistive or inductive) LM358 may be.
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    AC constant current source with constant frequency

    AC constant current source schematics.
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    Touching the audio amplifier input at the moon

    We hear hum sound If we touch the audio amplifier input. What happen If we touch to amplifier input at the moon? What do we hear from headphone?
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