Search results

Search Forums New Posts
  1. dave9

    Frigidaire CFMV164LSA over-the-range microwave capacitor location

    That is far too much text to concisely convey all information, and that lack of formatting (!), so I may have missed the essence of your post and will just throw a few line items out. - Your file might be too large, try an image hosting site like imgur.com and link to it in your post. - Once...
  2. dave9

    Powering device with Cat5e data cable

    Typical spec CAT5 gauge is 24awg, or no lower than 22awg to meet spec, it should have no problem carrying 600mA a couple meters using a single conductor. If it was a very short cable or cheap/generic they might've downsized the cable to 26awg. The bigger issue that threw me at first when you...
  3. dave9

    Hot rodding a cordless vacuum cleaner.

    If you've blown 30A fuse(s), you might need to upgrade the wiring too, now or wait for molten insulation.
  4. dave9

    Hot rodding a cordless vacuum cleaner.

    Apparently this statement is untrue. A different generation of tool, whether made by the same (TTI) manufacturer or not, is not magically the same. It might as well be a different brand, using a different battery, no? Craftsman went to 19.2V a few years back and Ryobi never did. You later...
  5. dave9

    What did we do before LEDs

    I still don't have any LED Christmas lights... keep meaning to get some after Christmas some year once they are discounted, but then I tell myself that the snow and ice here wouldn't melt off if they were LED, while they *need* to serve as my path lights because I unplug my landscape lighting to...
  6. dave9

    Retrofit house with LEDs

    I would not assume they have a graceful overcurrent shutdown. You could ask the manufacturer if you can get a hold of them, or size the supply to handle 35W/bulb, or put fuses on each run to the sockets, or put a sticker in the socket that reads max 6W (or whatever the max per bulb might be...
  7. dave9

    Retrofit house with LEDs

    Yes it looks like a current regulating circuit in the bulb so a 220VAC to 12VDC supply with ample current margin should work.
  8. dave9

    5x7 pcb enclosure?

    If I understand what you're doing, the enclosure with 9V battery compartment plus the adhesive standoffs seems relatively large and expensive just to house a 5x7cm perfboard and 9V battery. You did state it was not a good fit. I don't know how nice a presentation the case needs to be, but I...
  9. dave9

    Light dimmer

    ^ What indication do we have that it's a new style dimmer? I would have assumed an old triac design if already in use with incan bulbs.
  10. dave9

    Microcap Boost converter

    Ripple, you can filter at the powered device. Why do you need a specific frequency?
  11. dave9

    Light dimmer

    Might depend on the dimmer and you could try another one? Then again, how much work to put into optimal dimming for incandescent bulbs at this point? Dimmer, they're even less efficient, much much less.
  12. dave9

    Converting an existing amplifier into a subwoofer amp

    It seems like a bit of a waste to me, I mean you can pick up a 50W+ class D sub amp on ebay for around $8. Granted the PSU for it will cost at least that but if you're only needing 40W then a laptop PSU might suffice. Point being then you have the Pass amp for something else.
  13. dave9

    How do I program the call out number on my alarm system?

    ?? Link to instructions and quote the relevant passage that doesn't make sense? Contact the manufacturer for clarification?
  14. dave9

    Change in site ownership

    I too switched back to the old view, but unfortunately the new posts column on the right hand side of the page is missing for me. I don't care for the new version drop down at all. As it is, too much horizontal space is wasted.
  15. dave9

    Blaupunkt Roma Radio

    See these pics, it looks like the next step is to slide the whole tray out, probably taking out screws that secure it: https://picclick.com/Blaupunkt-Roma-2510-German-Tube-Radio-Working-202400625719.html
  16. dave9

    Drawing maximum amount of current from power supply ?

    I once met a fellow who picked up a trick in jail... he'd take the spiral metal binder from a notebook pad, a piece of pencil graphite, and shove it into 110VC outlets to light contraband cigarettes.
  17. dave9

    Drawing maximum amount of current from power supply ?

    You can get nichrome wire and ceramic terminal blocks (to mount it) for cheap on ebay if you want something a bit longer lasting and with consistent resistance.
  18. dave9

    5x7 pcb enclosure?

    Anything can be spec'd and made... just comes at a cost to tool vs # of units. 3D printing would not be inexpensive, except for the hobbyist who already owns the printer and has time to burn. I'm not clear on what you mean by "use glue into the box screw standoffs"? I suppose glue works for a...
  19. dave9

    5x7 pcb enclosure?

    Often it is easier for DIY projects, to pick the enclosure you want and THEN pick the PCB size that fits perfectly in it, routing around things like the studs the case is held together with, and that the board mounts to if not slots, and maybe the PCB ends up with some empty space on it too...
  20. dave9

    Drawing maximum amount of current from power supply ?

    Ohms law. 12V will put 24A through 0.5 ohms resistance. Measure the resistance of the graphite. Add a series resistor to increase the resistance above 0.5 ohms. Use ohms law again to calculate how much wattage the resistor of the particular ohm value needs to dissipate and pick a power...
Top