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Type: Posts; User: fjpompeo

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  1. Replies
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    485

    Closed: Reactivate Eagle's pull-down menus

    Hello,

    I accidentally disabled the pull-down menus in my Eagle 7.7.0. Does anyone know how to re-enable these menus?
    Thank you,
  2. Closed: Hakko FX-8301 27V x 150W soldering iron pencil pin assignments

    Hello,

    Can someone inform the 8 pin DIN female connector pins assignment? I want to use one of this in a home made PWM temperature controller but don't know heater resistance, thermocouple, earth...
  3. Closed: Re: Soldering Station 24Vcc PWM Temperature Controller with microcontroller

    Hello Jeelman,

    Very thank you to share this project. Can you explain how do I build the transformers or the dimensions, wires, core and so on??

    Rgards,

    Fernando
  4. Closed: Soldering Station 24Vcc PWM Temperature Controller with microcontroller

    Hi all,

    I want to build a soldering station with a PWM temperature controller to use my Hakko FX-8301 27V x 150W soldering iron pencil.

    As I know this pencil uses a thermocouple type K as a...
  5. Closed: Danfoss AquaDrive 202 DC-Bus Over-voltage

    Hi,

    I'm a control system technician and need to fix a 440Vac, 600HP Danfoss AquaDrive 202. After a storm this drive starts but after some seconds it trips with alarm 7 DC-Bus over-voltage. I made...
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    Closed: Power Flex 4 Schematic

    Hi all,

    I need Allen Bradley 22A-A6P8N103 1.5kW/2.0HP Power Flex 4 VSD electronic schematic diagram.

    I have some of this VSDs showing fault code F122 like I/O Board Fail but what does it mean?...
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    Closed: Rigol DS1062CA Linux software

    Hello,

    I need an Ubuntu 18.04 compatible software to control my Rigol DS1062CA oscilloscope like Ultra Sigma for Windows does using USB port.

    Regards,

    Fernando - PU2PLL - Brazil
  8. Replies
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    Closed: 127Vac 60Hz to 24Vac 50Hz

    Dear sirs,

    Here in the country that I live the outlet voltage is 127V and frequency 60Hz but I need 24V 50Hz (precise) 100mA how do I build a converter?

    I have a REGA turntable bought in...
  9. Closed: AVT2857 direct reading 30A instead of 10A

    Hi,

    I need to change the code of the Kit AVT2857 to read up to 30A instead of 10A, can someone help me?

    I have the code in .ASM format.

    73,

    Fernando - PU2PLL
  10. Closed: 24V to 13,8V @ 20A pwm step down dc-dc converter

    Dear sirs,

    I need a compact high efficient step-down pwm voltage regulator to reduce from 24Vdc to 13,8Vdc with 25A if possible with controllers like TL494 or MC34063 or UC3842,43,44,45 and mosfet...
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    451

    Closed: AVT-2779 Setup for 12V x 20A

    Dear colleagues,

    I want to build AVT-2779 kit to get a 12V x 20A switching power supply. Unfortunately the article it is in Polish and Google translator doesn't translate is too long!!

    My...
  12. Replies
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    1,003

    Closed: Re: Antistatic wristband strap tester

    Hi Barry,

    I have a Fluke DMM that has this range and hope is enougth to do this test. Very thank you for this tip.

    Regards,

    Fernando.
  13. Replies
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    Closed: Antistatic wristband strap tester

    I have some Antistatic wristband strap on my bench but don't know if they are in good shape, how do I test then?

    Regards,

    Fernando - Call sign PU2PLL - BRazil
  14. Closed: AS-Interface 4l - EM2-105-DX1 - ASi version

    Hi all,

    I need the instalation datasheet and what AS Interface version of this module AS-Interface 4l - EM2-105-DX1 manufactured by Klöckner Moeller or EATON.

    As per Pepperl Fucks technical...
  15. Replies
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    1,676

    Closed: Re: 12 analog channel telemetry pair with AVR

    Hi folks, very thank you for all tips. Well I need to monitor voltage, temperature and current of the radios installed more or less 200m far from my tent. It doesn't matter if the information is in...
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    395

    Closed: 100V in 72V 6A output regulator

    Hi,

    I need a voltage regulator that input voltage is 85Vdc up to 100Vdc and output is 72Vdc (+-5%) with 6A (no current limit). May be linear or switching. This power supply is for testing metro...
  17. Replies
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    1,676

    Closed: Re: 12 analog channel telemetry pair with AVR

    Sorry the delay in reply forgot my password!!

    Display can be 3 digits like 13,8V and 18,5A and 30,6ºC for each channel is more then enough and if possible in a four line x 20 characters
    or four...
  18. Replies
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    1,676

    Closed: Re: 12 analog channel telemetry pair with AVR

    Dear KlausST,

    Hello KlausST,
    I need to monitor the voltage of the battery, current consumed during transmission and heatsink temperature of four radios during a VHF / UHF contest that will take...
  19. Replies
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    1,676

    Closed: 12 analog channel telemetry pair with AVR

    I need an 12 channel telemetry mux(TX side) and demux(RX receiver) project to monitor 4 temperature, 4 current and 4 voltage analog channels. I really would like to use AD converter on TX side and DA...
  20. Closed: Re: How do I test a MAX1480 with USB to RS485 converter?

    Hi all,

    I want to connect a MAX232 to the RS232C side of a USB to serial converter (FTDI) in one end the other side of MAX232 wil be connected to left side of MAX1480 and the other side of MAX1480...
  21. Closed: How do I test a MAX1480 with USB to RS485 converter?

    Hi al,

    How do I test some MAX1480a if possible using on the other end an USB to RS485 converter and a proper software with baud rates up to 115kbps?

    P.S. The USB to RS485 with FTDI chip I...
  22. Replies
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    Closed: Re: RF Power meter with PIC

    OK now I saw the equipement working, that's just what I need and the attenuators are easy to build too. Very thanks to all of you.

    Regards,

    Fernando - Call sign PU2PLL - Brazil
  23. Replies
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    1,383

    Closed: Re: RF Power meter with PIC

    Dear sirs,

    I want to use PIC12F629, PIC12F675, PIC16F628, PIC16F876 or PIC16F877 just because a have all at hand. In the link suggested by tanveerriaz the circuit looks very accurate and easy to...
  24. Replies
    5
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    1,383

    Closed: RF Power meter with PIC

    Hi,

    I need a 100W RF Power Meter that uses a PIC16F628 with 16x2 LCD and AD8307 to with frequency range from 10MHz up to 200MHz.

    73,

    Fernando - Call sign PU2PLL
  25. Closed: Re: Flat NiCr resistance tape temperature controller using pulse methode

    Very thank you everyone for your tips and information. I'm in contact with an Italian manufacturer of this type of sealing machine and seems that he will give me all info I need.

    Regards,
    ...
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