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  1. Pharaday

    switch with indicator light

    OK so this eels like a dumb questionn but I took a SPST with an indicator light that is set up so that when the switch is on, it also completes the circuit on the indicator LED. The - wire on the indicator LED is connected to one prong and there is a 3rd prong for the indicator LED's + wire. The...
  2. Pharaday

    make this VU meter more sensitive, please

    hey guys here's this VU meter that I pulled off of an inverter battery combo, I'd like it to run off of the input from a little amp so anywhere between 2 and 10 volts should excite it. I can do that by changing out some of these resistors for a lower value, right? could you show me which ones? I...
  3. Pharaday

    e scooter power switch oddity

    Hey guys I built an e scooter and everything works great but there's one thing I was wondering about. I bought a 48 volt 3 phase DC motor controller and in order to power on the scooter, there are 2 wires that must be connected using a switch. The thing is that when I connect my multi meter to...
  4. Pharaday

    With respect, in what way would YOU re-use these?

    And please do only answer when you have time and when it would not interfere with your duties...... but I recently bought a couple of these for no other reason except they kinda look cool and I have a few ideas for neat repurposes but I'm curious..... and with the utmost of respect and...
  5. Pharaday

    help with dynamo on treadmill.

    Hey guys it's me again. I pulled a stationary exercise bike from the trash and it was one of those ones with a little dynamo on it so when you pedal it empowers the circuitry Etc. Well the Dynamo has multiple contacts and I can get positive from a few of them and negative from a few of them and...
  6. Pharaday

    help choosing inverter please

    I finally got a decent panel array and battery bank purchased and I was hoping yall could help me chose out a good inverter. I'm on a budget and my price range is around $150 right now and I'd love it to be ballpark 2000 Watts. I have 12 of these batteries (2V 152ah VRLA batteries)...
  7. Pharaday

    Found barely buried live wire in yard

    I was cleaning up an area where I was building a dog yard for my pups and I noticed a wire coming out of the ground and I wanted it gone. Fortunately I was among the 1% of the people in this town who would bust out a multi meter and check the wires first. I'm not afraid of low voltage but yeah...
  8. Pharaday

    Help choosing power source

    Ok guys, today I wanna build a light out of 24 of those backlight LEDs from TVs (LM41-00121E could not find datasheet right away, here is ebay link: https://www.ebay.com/itm/SAMSUNG-UN65MU6290-LED-STRIPS-LM41-00121E-LM41-00121F-39667A-39668A-/333065226733 ). I'd like the light to have a power...
  9. Pharaday

    Battery ruined by diode and LED

    Ok, guys I quit smoking and made my own ecig out of an old atomizer (the part with a coil surrounding cotton that soaks up the ejuice and gets vaporized by the coil) and battery from a broken ecig. It was pretty basic. I put a battery and ran 2 wires to the atomizer. I added a button on the...
  10. Pharaday

    simple component indentification

    Hey I cant find the dataheet for these 2 black rectangular part with the coils drawn on them. What are these?
  11. Pharaday

    Flasher help

    OK guys, check this out: http://www.bb-armr.com/site/wp-content/uploads/flasher-12-spec.pdf A BNSF railroad worker who stays at a hotel I once worked at gave me one of these. I'me trying to work out that diagram, I get that 1, 2 & S are lights with C being the common ground, maybe probably. To...
  12. Pharaday

    Stuff I can get but should I?

    So I live in this great little town where nobody gathers good stuff so it's all left to me. I'm helping to renovate this large Walmart type building that has closed. I'm posting a picture of all the stuff that I can get from that building, but I need y'all to let me know if any of it is...
  13. Pharaday

    Antique "Acoustic" amp needs attention ASAP

    Ok, this is a long one. Antiques are my side hobby. A buddy recently gave me this amp that causes my hobby ven diagram to have overlapping areas. It is clearly old. It had obviously spent some time outside. It had leaves and sand in it but still pumps alot of noise. I need help figuring out...
  14. Pharaday

    What task does this item perform for society?

    I followed an ooold rock wall a bit until I came across a tree. Underneath that tree was a rock that had absolutely no business being there whatsoever. I lifted that rock and found this item there. No instructions, no part number. I plugged it into an amp, nothing happened. Has anyone ever seen...
  15. Pharaday

    Amp driving LED project issue

    Okay so I have worked up to this point with yall's help and this is the closest I've ever come to completing a project LOL. I've been working on this for quite some time. For me this is a rather large project. I'm taking an amp but instead of speakers giving LEDs to light. I want to make two of...
  16. Pharaday

    Can anyone help me identify these?

    I put this post here cause these loooook like LEDa. However they don't light up and when I give power to them they provide power to the three LEDs you may see inside the circular holes on the circuit board. But they really look like LEDs. If you look closely they have a dome of clear plastic on...
  17. Pharaday

    Might I trouble you a moment with my power supply, good sirs?

    Hello, gents and gentleman! How are ya today?! I found this obsolete power supply. It's small and kind of nice and I really want to use it for its multi voltages. It's a Cosel R50A-3. I found the user's manual and a few other PDFs on it but I can't for the life of me figure out how to get any...
  18. Pharaday

    Question concerning increasing voltage for phone auxiliary speaker

    I have taken guts of a speaker that you plug into your phone with an audio cable and replaced the speaker with LEDs so that any signal going into the audio cable causes the LEDs to light up, brighter if loud and dimmer if quiet. Simple. It uses a little 5 volt rechargeable battery. My problem...
  19. Pharaday

    What are these ??

    I found these all together in a drawer in the basement where I work. What are these items and what can they do together?
  20. Pharaday

    What are these?

    What are these? Google doesn't know from the label. They aren't LEDs (or they're blown). Thought maybe photo sensors? Can't detect voltage in the 0-20V range ..... what the heck??
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