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Recent content by PeterC

  1. P

    Adding an audio output to an old answering machine

    I have a bunch of old microcassette tapes that I'd like to digitize. (Old messages from my deceased parents so they are important to save for my sentimental self). Nobody makes microcassette players anymore and good working old ones are expensive but I have an old answering machine that uses...
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    Wi-fi door to let squirrel out of my basement

    I was surprised myself that any bait I try doesn't work. He won't go for nuts of any type, peanut butter, dry cat food, cheeses, sunflower seeds, etc. He's eating something but I don't know what. That's why I want a technological solution to have something that will fit what I wrote...
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    Wi-fi door to let squirrel out of my basement

    I have a tiny squirrel living in my basement. He's been there for months and it's time I get him outside safely. He won't go into a humane trap so I've drilled a 3" hole in the wall and put a ramp outside. I thought he'd go right outside the first night but no, he goes out onto the ramp many...
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    Trying to repair a shaver charger

    Thanks very much for the suggestions. It isn't easy to measure the voltage across the resistor as I have everything wrapped up with shrink tubing and I'm afraid to pull it all out of the charger base. I had to cram it all in there and do a lot of bending to get it all to fit so I'm afraid...
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    Trying to repair a shaver charger

    The neutral on the power supply module is going to the wider blade of the AC plug (there are two prongs on the plug). This worked fine at charging the shaver 6 months ago when I had it all sitting on my workbench. Maybe it was registering the same 3.7v back then but I don't know as I didn't...
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    Trying to repair a shaver charger

    I'm about to do a first charge after putting the new power supply module into its charging base. That first charge I did (before putting it all together) lasted 6 months! Yesterday, I put the power supply module and all into the charger base. Before charging the shaver, I thought I'd do a...
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    Trying to repair a shaver charger

    I was able to get everything hooked up successfully and it works! Thanks for the comments about the testers and using them on diodes. I did find another tester I had that has a diode function and got a reading using that one. After hooking it all up, I charged the shaver for about twelve...
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    Trying to repair a shaver charger

    I soldered the diodes together and then onto the red wire but I'm not getting any current through them. I didn't think to test for current across each diode before doing the soldering. Given that the heat shrink tubing (Harbor Freight) is only a few inches long, I knew it wouldn't cover the...
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    Trying to repair a shaver charger

    I received my parts and I'm about to solder. Here is a photo to show you my plan. Are the diodes and resistor pointing in the correct directions and connecting to the correct terminal on the power supply module? Does it matter which end of the AC cord goes to which connection on the power...
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    Trying to repair a shaver charger

    Kris, No, I thought I'd wait a few days before ordering in case there were any changes. I'm confused though so please be patient with my limited electronic knowledge. You had originally suggested one resistor and now you have suggested five others. Should I then order all 6 that you've...
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    Trying to repair a shaver charger

    Thanks very much for all your help Kris. I will order the parts you suggest and give an update on how it went.
  12. P

    Trying to repair a shaver charger

    The battery inside the shaver can be replaced. I opened up the case and took some photos. The instructions that I read online for this shaver (I don't have the original manual that came with the shaver 20 years ago but the same model is still available) say to charge it 16 hours the first...
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    Trying to repair a shaver charger

    I didn't know what "prise" meant so looked it up and it sounds like using leverage to get it open. I couldn't get the iron surround to open at any seams, even using a screwdriver and hammer. I did get more of the red/green wire section open though its all pretty mangled now. I removed the...
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    Trying to repair a shaver charger

    I removed a few layers of the green tape around the winding with the red & black wires. I stopped when I noticed the end of the black wire was very loose and the only thing it is connected to is one strand of copper wire that disappears into the windings. The red wire appears solid. Should...
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    Trying to repair a shaver charger

    Thanks for the replies. I'm pretty good with household electric but not electronics so thank you for stepping me though this. I took some photos of what I think you asked me to do using my multimeter. I'm not exactly sure what you mean by "primary" Before I start opening the unit up...
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