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  1. Tha fios agaibh

    Looking for tuscany dryer parts/information

    How is that going to fix an element with infinite resistance?
  2. Tha fios agaibh

    Dryer malfunction

    The discoloration may be just heat dissipated from a resistor. Or, is that a shadow? I'd be more concerned about the corrosion on some of the tracers. More pics would be helpful.
  3. Tha fios agaibh

    Transient Noise causing MAX7221 7-segment Display to Blank Out

    Couple of things I'd try/check; Try plastic standoffs instead of steel. Try shielding the bottom of pcb with mylar, pvc or similar insulating layer. Check that wiring to your board is properly shielded with drain wire grounded at source end only. If any signal wiring is running near ac line...
  4. Tha fios agaibh

    Light switch control from the same power source

    I don't know, unless you can find an extremely efficient relay or triac that would run off a parallel voltage divider capable of delivering enough current, even when the relay has closed? The resistance of your load (wattage of light) would effect the circuit, and the added voltage drop would...
  5. Tha fios agaibh

    a diy security alarm design

    Very sorry to hear about your lady friend. Tombam95 is right. I would have a heightened sense of urgency to secure the apartment as soon as possible, and buy a reliable and proven system, rather than starting from scratch. If for nothing else but the peace of mind.
  6. Tha fios agaibh

    AC and DC Voltages for Electrolysis

    You want to stick with DC. Remember if you use AC, your Anode becomes a Cathode and the Cathode becomes an Anode every half of a cycle. So, it will become destructive to your Anode and If your electrolyte has a metallic reservoir, that will get desolved away too. Its better to use DC, or a...
  7. Tha fios agaibh

    AC and DC Voltages for Electrolysis

    I'm sure your right about the sodium carbonate for rust removal, but as someone who was is the business for 15 years, I can say firsthand that regular old table salt (sodium cloride/NaCL) works quite well.
  8. Tha fios agaibh

    AC and DC Voltages for Electrolysis

    I don't know what washing soda is, but I know the better the conductivity is, the better it will work. The best electrolyte is a strong salt water. I don't remember the exact concentration we used to use (cation deburring), but I remember it was 8 times saltier than the ocean. Another good...
  9. Tha fios agaibh

    AC and DC Voltages for Electrolysis

    Remove rust from what? I believe the galvanic reaction will etch away just as much good steel as the rust areas, unless you mask off the materials (steel) you don't want to be removed.
  10. Tha fios agaibh

    hospital yet again

    We feel for you. It's a frustrating place to be. Even if the medical team does not know what is causing your ailments, it's good to be there where they can keep you hydrated and monitor your vitals. Regards, John PS: Earplugs will help you ignore all the strange noises so you can get some sleep.
  11. Tha fios agaibh

    AC plug wires are reversed and Above ground potential

    I hear you, it's better to understand something in front of you, rather than going on basic descriptions on a forum. If we knew more about this "equipment" perhaps we could be of help. In the meantime, cut off the plug so no one plugs in this dangerous thing.
  12. Tha fios agaibh

    AC plug wires are reversed and Above ground potential

    I am an electrician
  13. Tha fios agaibh

    AC plug wires are reversed and Above ground potential

    Not sure what is going on either. If we are talking about a single phase 120v plug (cord cap) there is technically no neutral. There is a hot, grounded, and when it's 3 prong plug; an equipment ground that hooks to the grounding pin. You should have a polarized plug with the grounded pin...
  14. Tha fios agaibh

    *Help* with cassette recorder

    Also check for weak springs by assisting mechanism with a screwdriver. Weak springs can often be strengthened by shortening them.
  15. Tha fios agaibh

    *Help* with cassette recorder

    Belts are likely stretched out. Play engages capspan roller that requires more torque on the belts. See if it will work (somewhat) if you hold the play button down half ways. Cleaning everything with isopropyl alcohol on a q-tip will help too.
  16. Tha fios agaibh

    Suggestions for replacement of an electromagnetic changeover relay

    One problem doing it electronically is that if a component fails, you could backfeed power to the utility causing a hazard for anyone (linemen) working on the grid. I'm not sure if you could do something like a solid state relay because they require power to operate and dont have normally closed...
  17. Tha fios agaibh

    hospital yet again

    We wish you the best. Btw, most hospitals have free WiFi if you're up to browsing EP.
  18. Tha fios agaibh

    What can cause logic glitches

    Bad programming. It's possible to have a line of logic that is scanned by a cpu later than the other portions of logic (example: subroutines). By the time one portion of logic executes, the other conditions have not been updated.
  19. Tha fios agaibh

    How to Test MOV varistor

    Good advice, I will add that they should also be replaced due to age. I would venture a guess that the majority of movs in equipment 15 years or older for suppression of line voltage, offer little to no protection.
  20. Tha fios agaibh

    Fan Motor Part Identification

    Thermal fuse. It cuts out when temp goes to 115c Google to find replacement.
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