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  1. bertus

    A Stretch

    Hello, Perhaps will the following pages give you a better idea how to use the potmeters: http://www.geofex.com/Article_Folders/potsecrets/potscret.htm http://www.bcae1.com/potentio.htm Bertus
  2. bertus

    12V 10Amps Power Supply Works for 5 Minutes Only

    Hello, The strip over the transformer might influence the specs of the transformer. Remove it and see if it keeps working. If so, better try an other way of fixing the powersupply in the case. SMPS powersupplies usualy need a minimum current as load. Without the minimum load the working can...
  3. bertus

    12V 10Amps Power Supply Works for 5 Minutes Only

    Hello, I see you have a metal strip over the transformer. That might influence the working of the transformer. What does the powersupply do without that strip? Bertus
  4. bertus

    A Stretch

    Hello, The centerpin goes to the capacitor, the other side of the capacitor goes to ground. Bertus
  5. bertus

    A Stretch

    Hello, When you connect the middle to the right loop, the gain will go higher when you turn right: Bertus
  6. bertus

    A Stretch

    Hello, The order of the capacitor and diodes and the potentiometer is not important. As you say, they are all in parallel. In the picture you can also see that two pins of the potmeter are connected together. Bertus
  7. bertus

    A Stretch

    Hello, Did you see the connnection picture on the page I gave you before? Bertus
  8. bertus

    And now something weird

    Hello, How about heels for men? https://heels4men.net/ https://www.debate.org/opinions/should-men-wear-high-heels Bertus
  9. bertus

    Comedy Thread

    List of humorous units of measurement https://en.wikipedia.org/wiki/List_of_humorous_units_of_measurement
  10. bertus

    Capacitor and Resistor Question

    Hello, How did you measure the resistor? When holding the measuring pins on the resistor with your fingers, you will measure the resistor with your body resistance in parallel. Lay down the resistor and press the measuring pins against the resistor leads without touching the pins with your...
  11. bertus

    COVID-19

    Hello, 10 million cases: https://www.worldometers.info/coronavirus/ @(*steve*) , quite a bit later as the predicted 20th of April in post # 10 Bertus
  12. bertus

    Comedy Thread

    Found again at AAC:
  13. bertus

    A Stretch

    Hello, Film capacitors are not polarized. Electrolitic (wet) or tantalium (dry) capacitors are polarized. The capsite has a lot of information on the different capacitor types: http://www.iequalscdvdt.com/ Perhaps this box with film capacitors is something to complete your part collection...
  14. bertus

    Comedy Thread

    Found at AAC:
  15. bertus

    Please help to find out this part 2913

    Hello, That is a mosfet. Bertus
  16. bertus

    Transistor series voltage regulator

    Hello, Read this article: http://www.rfcafe.com/references/electronics-world/series-pass-regulators-electronics-world-march-1969.htm Bertus
  17. bertus

    Woo-Woo What electronics do these invisible earphones have in them?

    Hello, I would never put someting in my ear. It could as well be a small neodymium magnet. Those come in many small sizes: https://www.umagnets.com/c/neodymium-magents/disc-magnets-neodymium/ It looks like a scam to me. Bertus
  18. bertus

    How to lower voltage of frequency signal

    Hello, @Wollowstone , Here is the mentioned PDF. Unfortunately, it will not work for the application as the powersupply of the chip must be between 1.65 and 3.6 Volts. https://www.ti.com/product/2N7001T?keyMatch=2N7001T&tisearch=Search-EN-everything&usecase=GPN Bertus
  19. bertus

    A Stretch

    Hello, NO, they are very different in value. Read this page how to read the value: https://www.petervis.com/electronics/Ceramic_Disc_Capacitor_Values/Ceramic_Disc_Capacitor_Values.html The 221 will be 220 pF The 222 will be 2200 pF or 2.2 nF The 224 will be 220000 pF or 220 nF Peter Vis has a...
  20. bertus

    A Stretch

    Hello, With 100K the gain will be lower. If you must use the 100K, lower the value of R46 to 220 Ohms to get about the same gain. Bertus
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