Search results

Search Forums New Posts
  1. bertus

    Just When I Thought it was Going to Be Easy

    Hello, On the amazon page you gave there was this picture: Measure the resistance between Ground and Negative, to see if there is a switch between them. (just with the plus, with no power). Then plug-in the power and measure where the positive and negative voltages come, with a voltmeter. Bertus
  2. bertus

    Single 3.3V Inverter

    Hello, Is the pulse already made and only needs to be inverted? Have a look in the pocket databook: https://www.ti.com/lit/ug/scyd013b/scyd013b.pdf Page 92 shows a small inverter chip. Bertus
  3. bertus

    Best op-amp for audio use?

    Hello, You might also want to have a look at this eBook: https://www.ti.com/lit/SLYY209 (An Engineer's Guide to Designing with Precision Amplifiers) Bertus
  4. bertus

    And now something weird

    open door failure:
  5. bertus

    Sourcing a Trigger Switch

    Hello, Does this help? https://sawbladeother.com/fd04-2116-039815001058 I can not access the site as it is blocked for my region. Bertus
  6. bertus

    Exceeding rated current for power input connector

    Hello, Also the wire for the plug look very thin. For 20 Amp you will need at least 14 AWG or 1.5 mm2. https://www.bluesea.com/resources/1437 Bertus
  7. bertus

    Exceeding rated current for power input connector

    Hello, The highest current rating for barrel connectors I could find is 11 Amps: https://www.switchcraft.com/category.aspx?Parent=943 You could replace the barrel connector with two 4 mm banana sockets: https://www.twinschip.com/Female-Banana-Jack-For-4mm-Plug-2-Colors-Red_Black The banana...
  8. bertus

    Best op-amp for audio use?

    Hello, Perhaps you can find some here: https://www.ti.com/amplifier-circuit/op-amps/audio/overview.html Bertus
  9. bertus

    Exceeding rated current for power input connector

    Hello, Exceding the power connectors rating might cause heating and possible fire. If you want some decent connectors, have a look at the powerpole connectors from anderson: https://www.andersonpower.com/us/en/resources/PowerPoleResourcesPage.html Bertus
  10. bertus

    Question on reversing polarity for DC Motors #2

    Hello, I have moved the posts to a new thread, from this old thread: Question on reversing polarity for DC Motors Bertus
  11. bertus

    Comedy Thread

    Thanks to cmartinez AAC
  12. bertus

    Can this be repaired by a complete novice please? Basic circuit repair?

    Hello, As @flippineck said, practice can help to avoid frustration. the following page will give you some tips on through hole soldering: https://www.mikroe.com/blog/through-hole-soldering These are more decent videos on soldering: Bertus
  13. bertus

    Comedy Thread

    Thanks to Ford Perfect AAC
  14. bertus

    Comedy Thread

    Thanks to cmartinez AAC
  15. bertus

    Is this possible to do?

    Hello, @SparkyCal , The led you show looks like the led on this page: https://arduinogetstarted.com/tutorials/arduino-rgb-led Bertus
  16. bertus

    Seeking Help with a Behringer PMP 500 mixer

    Hello, @SparkyCal , The Behringer PMP500 is more than just a mixer. It has two amplifiers of 250 Watts build in. https://www.manualslib.com/manual/573726/Behringer-Europower-Pmp500.html#manual @louiedasaxguy , Synthxl has a couple of PMP mixers, but not the 500...
  17. bertus

    Toggle Switch with relay

    Hello, Have a look at this: This circuit comes from this page: http://www.bowdenshobbycircuits.info/page9.htm Bertus
  18. bertus

    USB wiring

    Hello, You could use a step-down regulator to bring the 12 Volts back to 5 Volts...
  19. bertus

    Question about new schematic- Metronome

    Hello, The schematic looks the same. Only the series resistor with the potmeter is missing. The series resistor should have a minimum value of 330 Ohms to protect the 555 and potmeter from burning out. Bertus
  20. bertus

    Question about new schematic- Metronome

    Hello, You could enter the resistor and capacitor values in this online simulator to see how the bottom led would react: https://visual555.tardate.com/ Bertus
Top