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HarryA

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HarryA last won the day on March 20

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About HarryA

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  • Birthday June 23

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    USA, Pennsylvania, Susquehanna Cty, Forest Lake
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    Canoeing, woodworking, electronics, and gardening.

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  1. I used: bluetooth camera for iphone also see: https://techpp.com/2013/04/17/bluetooth-cameras-connect-smartphone/
  2. Perhaps? To big? " This Fujifilm FinePix digital camera has Bluetooth connectivity for wireless media transfer. " https://www.bestbuy.com/site/fujifilm-finepix-xp130-16-4-megapixel-digital-camera-sky-blue/6204739.p?skuId=6204739
  3. If you do not need SMD perhaps "The LT138A/LT338A (LM138/LM338) series of adjustable regulators provide 5A output current over an output voltage range of 1.2V to 32V." The LM338 is about 1$ each on ebay.
  4. Search on ebay for "personal alarm switch" most do not have a switch just a pin you pull out. I used one to find the blockage in a drain pipe. They are LOUD!
  5. Power Strip with USB, Surge Protector Smart 3 Outlet and 4 USB Port Charger with 5ft Extension Power Cord 1250W 100-240V https://www.amazon.com/Protector-Extension-100-240V-Portable-Transformers/dp/B07KGPFHYC/ref=sr_1_9?s=electronics&ie=UTF8&qid=1548959567&sr=1-9&keywords=surge+protectors+for+computers I worked with a power supply that was 900 amperes and 8 volts; this would not work for that
  6. This maybe helpful: How to make an IR blaster: https://www.instructables.com/id/How-to-Make-an-IR-Blaster/ and an amplifier https://www.amazon.com/Geekroom-Headphone-Amplifier-Rechargable-Computers-Black/dp/B07F1JS4JV/ref=sr_1_21?ie=UTF8&qid=1548463071&sr=8-21&keywords=cell+phone+audio+amplifier This is an old question but it maybe helpful to someone in the future.
  7. audioguru is correct. But if you are interested in cell phones you may find this site helpful: https://www.instructables.com/id/Make-your-own-cellphone-from-scratch/
  8. I would use an arduino microcomputer with an arduino display shield for the display. The best microcomputers are about 22$ down to a few dollars for the ones from China. The arduino display shields are around 10$ or so. The Utlransonic distance measuring transducer senors are less than 10$; they detect if you are in your seat or not. https://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias%3Daps&field-keywords=arduino+uno https://www.amazon.com/s/ref=nb_sb_ss_i_1_13?url=search-alias%3Daps&field-keywords=arduino+ping+sensor&sprefix=arduino+ping+%2Caps%2C215&crid=DDBCCF7NH7CK https://www.amazon.com/s/?ie=UTF8&keywords=arduino+display+shield&tag=geminipcstand-20&index=aps&hvadid=28314448797&hvqmt=e&hvbmt=e&hvdev=c&ref=pd_sl_83ujuhent2_e
  9. One can go from 50hz ac to 12 vdc via battery charger then from 12 vdc battery to 60hz 120v via a dc to ac converter. see: https://www.bing.com/videos/search?q=50hz+to+60hz+converter&&view=detail&mid=3D9219028DABBB0162A53D9219028DABBB0162A5&&FORM=VDRVRV&ajf=60
  10. Hello, I would think few of us would know anything about mig welders. I gather you want to hot switch the current from the mains to the welder. What current does your welder draw would be a start. You may need a high current relay to do the switching. Like? https://www.grainger.com/product/5ZH38?cm_mmc=PPC:+Google+PLA&s_kwcid=AL!2966!3!166591437759!!!g!81032003877!&ef_id=WqqIQwAAAacd4m57:20180315145043:s It's rated "AC contract rating - relay: 25 amperes at 240 volts ac." You need a relay rated higher than it draws off the mains because of the inductive load - I gather the mig welders have a transformer at the input like an arc welder?
  11. How about 3 terminal adjustable voltage regulators? see for example: https://www.mouser.com/ProductDetail/ON-Semiconductor-Fairchild/LM317AHVT?qs=%2fha2pyFadugRpOCsw7uJG%2fYkcWjLe5SQfHkipQZSRvGAuHf8Q8Z20lpgQCwyK1vllMxUP7WNhWIGj0RAnAK1dQ%3d%3d 60 volts max and 1.5 amperes. Poke around at Mouser for higher current ones also. There are filters on their site that are helpful.
  12. Your " unknown phone " is unknown to us also. One photo is worth a thousand words, two photos are worth two thousand words, etc
  13. You need to define this so someone can help you.
  14. The power required by the charger would be in the order of: 120 * 0.3 = 36 watts. The 220/240 To 110/120 Volt European Socket Power Converter Step Down Transformer off ebay.com are rated 100 watts and not expensive. Order one directly from China; it's just up the big pond from you
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