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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by ZipZapOuch

  1. ZipZapOuch

    Which switch

    If you think a stationary bike with an awkwardly placed, and overly sensitive switch that compresses you to an off-balanced position when the handlebars compress against the user's chest and then pull you forward quickly - then go for it. It's especially hazardous for people with large bellies...
  2. ZipZapOuch

    Which switch

    You'd be better off walking for exercise and then lifting some 5- and 10-pound weights. 20 to 30 reps each day. Those bikes are injuries waiting to happen. How old was your mother when she bought it?
  3. ZipZapOuch

    Have a ultrasonic washer but not knowing what detergent for cleaning soot

    I'd give the laundry detergent+water a try first. Safe for fire, safe for the plastic and cables, safe for copper/tin
  4. ZipZapOuch

    Have a ultrasonic washer but not knowing what detergent for cleaning soot

    But still flammable down to 50%. And lower concentrations are still flammable as the mix is heated. Finally, the sonic action creates cavitation in the mixture. The cavitation is typically water vapor but, when molecules with a higher vapor pressure are present, those will preferentially...
  5. ZipZapOuch

    Have a ultrasonic washer but not knowing what detergent for cleaning soot

    No, sorry, it was a typo - it should have read XP ratings. Explosion proof ratings. The sparks made by the switch or relay can ignite the solvent vapors.
  6. ZipZapOuch

    Have a ultrasonic washer but not knowing what detergent for cleaning soot

    Do not use solvents (butyl cellusolve) in a sonic bath. These are not "EP-rated" devices which means they likely create sparks when you flip the switch or when the relay engages. Sonic baths move molecules very fast and can rapidly increase the concentration of the vapor in the air near the...
  7. ZipZapOuch

    Have a ultrasonic washer but not knowing what detergent for cleaning soot

    Do not use solvents (butyl cellusolve) in a sonic bath. These are not "EP-rated" devices which means they likely create sparks when you flip the switch or when the relay engages. Sonic baths move molecules very fast and can rapidly increase the concentration of the vapor in the air near the...
  8. ZipZapOuch

    PWM replacement for car lighting dimmer

    PlaneCrazy I assume you're in the U.S.? Let me know if you need help.. I have a small circuit that can limit current on surges and 2000Hz PWM high-side switch your Lamps. You won't hear any noise as the PWM isn't driving inductive loads (motors).
  9. ZipZapOuch

    Wow – Do You See The Problem?

    "Ouch! Let me do it again!"
  10. ZipZapOuch

    Wow – Do You See The Problem?

    Two adapters for under £7 and a chance for life-threatening excitement. Sounds like a bargain.
  11. ZipZapOuch

    Wow – Do You See The Problem?

    Again, only one person here is a name-caller.
  12. ZipZapOuch

    Wow – Do You See The Problem?

    Thanks for saying you were wrong and that your post title is not the "wow"-worthy "problem" you assumed it was. So, as I said above to answer your question in the title, "No, I don't see the problem"
  13. ZipZapOuch

    Wow – Do You See The Problem?

    https://www.digikey.com/en/products/detail/tensility-international-corp/11-00034/3900591 https://www.digikey.com/en/products/detail/qualtek/223052-01/7606754 "Q.E.D."
  14. ZipZapOuch

    Wow – Do You See The Problem?

    How was my post "squabbling". Look back at all of my posts to this OPs threads - no name calling. My comments were on topic. Look at the OPs comments to my posts, name calling and insults. Talk about distain, I don't get it. I don't understand why only one member is allowed to call names of...
  15. ZipZapOuch

    Impact of Tariffs on PCB Fab

    How was this "obvious distain". Look back at all of my posts to this OPs threads - no name calling. The comment about the new name for the thread was intended to be funny - because the thread has covered a lot of ground. Look at the OPs comments to my posts, name calling and insults. Talk...
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