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  1. Externet

    New Format

    Yes and no on screen captures : Running Ubuntu 22.04 + Firefox Unsure if duplicates, not familiar with this new site...
  2. Externet

    AA rechargeable batteries 1.2v no good

    The devices are meant to use 1.5V cells and you are using 1.2V cells. Why do you expect performing ? And... is there a transmitter somewhere ? And... have you measured the voltage of each cell while operating, to find if there is a defective one ? And... Do 1.5V rechargeable cells exist ...
  3. Externet

    Buzzer Circuit

    The symbol shown is for a speaker; if it is a piezo element, it will want higher AC voltage and at resonant frequency.
  4. Externet

    Grounding a Ham Antenna

    You can use a lightning arrestor like ----> https://ancable.com/collections/connector/products/lightning-arrestor-surge-protector-for-cb-ham-two-way-radio-antenna-uhf-pl-259-male-to-female-rf-coaxial-connector-adapter
  5. Externet

    Grounding a Ham Antenna

    Disconnecting It will protect the transceiver. The antenna remains subject to Murphy's law and unpredictability. And watch where you leave the disconnected coaxial terminal connector indoors.
  6. Externet

    Capacitive supply...

    Good day. What is the voltage at C2 for this supply method ? If not allowed in the forum, please delete.
  7. Externet

    Cable Connectors

    Hi. The hardwarebookinfo does not work for me :oops: Am daily looking for hardware of many kinds and dreamed of a 'magic' parts source guide place with electronics and not electronics :( Today I was after the 1/2" zinc metal pivot cams as in this vinyl window guide, with no success. Had to...
  8. Externet

    Looking for help finding/searching for a "inline DC power plug & jack"

    The current capability for a USB connector is not only its wire gauge. It is the source circuitry. If the subject item has a battery, its USB cable is likely meant for charging, not for operation. If you are after any sturdy in-line connector for DC, there is many. The larger current capable...
  9. Externet

    Comedy Thread

    Seen today posted for sale on facebook...
  10. Externet

    Change timing period to gadget ?

    Thanks, fellows. Found the exact item with the 74HC14 somewhere else, but still no schematic to attempt modify it properly. ----> Found a schematic that claims done with a 4017 instead. It does not matter which chip, I could build it with such instead, am after only the 1 chirp per minute...
  11. Externet

    Change timing period to gadget ?

    Hello. My poor vision cannot reverse engineer now this $1 non-contact AC detector probe from Aliexpress. ---->...
  12. Externet

    Help with a busted part

    Here are other numbers appearing like equivalents ----> https://www.yoycart.com/Product/544626433037/
  13. Externet

    Comedy Thread

    Hold it in, fellows, just one more minute now !
  14. Externet

    Microwave sparking from side panel

    If you decide to dump it; remove the plastic part where arcing occurs, clean all and any splashes deeply and the soot that may favor the arcing path and retry. If cured, perhaps a clean proper material can replace it. Running without the plastic is fine; just becomes harder to clean crevices...
  15. Externet

    Need help repairing Microwave oven

    First remove the fuse while unplugged and check if good continuity * Being that old perhaps has no electronic display nor panel buttons, just a timer knob. Is that right ? Does the light inside work when opening door ? *That would mean a healthy fuse. The moment it failed did you stopped...
  16. Externet

    Gas Gauge Sending Unit question

    What if you understood wrong ? Did you read its manual ? Disconnect the sender and put resistors instead to find out behavior empty-to-full. Do it twice; engine off and engine running. The voltage regulation comment from bluejets above is also very valid. The gauge can be current driven type...
  17. Externet

    Oscilloscope Connection Question

    Much better to use a transformer that can be canibalized from a wall adapter and connect the oscilloscope to its secondary. Amplitude reading will be scaled down, frequency and waveform kept same.
  18. Externet

    How do you store your test leads?

    A horizontal string or wire near a wall serves as where to bite-hang your test leads, just as a clothes drying string.
  19. Externet

    Chosing a Microscope

    That $20 camera is meant for plain surveillance, with a 16mm lens for my magnifying application. The size of monitor provides multiplication of the magnification without resolution loss. ---->...
  20. Externet

    Chosing a Microscope

    That exact one Sony 1/3" real bullet shaped is not available any more, now every vendor calls them all 'bullet' :mad: Choose one with changeable lenses. ----> https://www.aliexpress.com/item/32813259697.html Shit they want to sell you now ---->...
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