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#electrolytic — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #electrolytic, aggregated by home.social.

  1. I bought a #Hangell (no, I wasn't familiar with that name) switching bench power supply and it arrived. It happens to be one that #BigClive just briefly showed in one of his unbagging videos.

    I got it because my existing old #linear supplies max out at around 18 V, and that has been a hindrance of late. A #switching supply isn't ideal, because of the possibility of noise, but this model will do 5 A at 60 VDC, and a linear supply that can do a couple of amps at that voltage is big, heavy, and pricey.

    So of course, as soon as I received it, I took it apart. As you do.

    And ... I'm pleasantly surprised. The #PCB layouts look good, the assembly appears very good, with proper pick&placed #SMT components and reflow soldering, not hack-job hand soldering. The components seem to be #quality, even name-brand where appropriate. There are what appear to be genuine class X and class Y #safety capacitors everywhere they should be. The front binding posts are fairly typical cheap #Chinesium ones, but appear to be from the better end of the quality spectrum as far as those go.

    One ding: the multiple #electrolytic output caps appear to be 63 V-rated ones. For a supply that goes up to 60 V, that's just not acceptable. Maybe that's because this unit can also be had in a 30 V model? Or maybe they're just hoping you don't notice.

    I'm sorely tempted to replace them with 100 V-rated ones before I use it. I'm going to add some more output #filtering as well.

    #electronics #hobby

  2. I bought a #Hangell (no, I wasn't familiar with that name) switching bench power supply and it arrived. It happens to be one that #BigClive just briefly showed in one of his unbagging videos.

    I got it because my existing old #linear supplies max out at around 18 V, and that has been a hindrance of late. A #switching supply isn't ideal, because of the possibility of noise, but this model will do 5 A at 60 VDC, and a linear supply that can do a couple of amps at that voltage is big, heavy, and pricey.

    So of course, as soon as I received it, I took it apart. As you do.

    And ... I'm pleasantly surprised. The #PCB layouts look good, the assembly appears very good, with proper pick&placed #SMT components and reflow soldering, not hack-job hand soldering. The components seem to be #quality, even name-brand where appropriate. There are what appear to be genuine class X and class Y #safety capacitors everywhere they should be. The front binding posts are fairly typical cheap #Chinesium ones, but appear to be from the better end of the quality spectrum as far as those go.

    One ding: the multiple #electrolytic output caps appear to be 63 V-rated ones. For a supply that goes up to 60 V, that's just not acceptable. Maybe that's because this unit can also be had in a 30 V model? Or maybe they're just hoping you don't notice.

    I'm sorely tempted to replace them with 100 V-rated ones before I use it. I'm going to add some more output #filtering as well.

    #electronics #hobby

  3. I bought a #Hangell (no, I wasn't familiar with that name) switching bench power supply and it arrived. It happens to be one that #BigClive just briefly showed in one of his unbagging videos.

    I got it because my existing old #linear supplies max out at around 18 V, and that has been a hindrance of late. A #switching supply isn't ideal, because of the possibility of noise, but this model will do 5 A at 60 VDC, and a linear supply that can do a couple of amps at that voltage is big, heavy, and pricey.

    So of course, as soon as I received it, I took it apart. As you do.

    And ... I'm pleasantly surprised. The #PCB layouts look good, the assembly appears very good, with proper pick&placed #SMT components and reflow soldering, not hack-job hand soldering. The components seem to be #quality, even name-brand where appropriate. There are what appear to be genuine class X and class Y #safety capacitors everywhere they should be. The front binding posts are fairly typical cheap #Chinesium ones, but appear to be from the better end of the quality spectrum as far as those go.

    One ding: the multiple #electrolytic output caps appear to be 63 V-rated ones. For a supply that goes up to 60 V, that's just not acceptable. Maybe that's because this unit can also be had in a 30 V model? Or maybe they're just hoping you don't notice.

    I'm sorely tempted to replace them with 100 V-rated ones before I use it. I'm going to add some more output #filtering as well.

    #electronics #hobby

  4. I bought a #Hangell (no, I wasn't familiar with that name) switching bench power supply and it arrived. It happens to be one that #BigClive just briefly showed in one of his unbagging videos.

    I got it because my existing old #linear supplies max out at around 18 V, and that has been a hindrance of late. A #switching supply isn't ideal, because of the possibility of noise, but this model will do 5 A at 60 VDC, and a linear supply that can do a couple of amps at that voltage is big, heavy, and pricey.

    So of course, as soon as I received it, I took it apart. As you do.

    And ... I'm pleasantly surprised. The #PCB layouts look good, the assembly appears very good, with proper pick&placed #SMT components and reflow soldering, not hack-job hand soldering. The components seem to be #quality, even name-brand where appropriate. There are what appear to be genuine class X and class Y #safety capacitors everywhere they should be. The front binding posts are fairly typical cheap #Chinesium ones, but appear to be from the better end of the quality spectrum as far as those go.

    One ding: the multiple #electrolytic output caps appear to be 63 V-rated ones. For a supply that goes up to 60 V, that's just not acceptable. Maybe that's because this unit can also be had in a 30 V model? Or maybe they're just hoping you don't notice.

    I'm sorely tempted to replace them with 100 V-rated ones before I use it. I'm going to add some more output #filtering as well.

    #electronics #hobby

  5. I bought a #Hangell (no, I wasn't familiar with that name) switching bench power supply and it arrived. It happens to be one that #BigClive just briefly showed in one of his unbagging videos.

    I got it because my existing old #linear supplies max out at around 18 V, and that has been a hindrance of late. A #switching supply isn't ideal, because of the possibility of noise, but this model will do 5 A at 60 VDC, and a linear supply that can do a couple of amps at that voltage is big, heavy, and pricey.

    So of course, as soon as I received it, I took it apart. As you do.

    And ... I'm pleasantly surprised. The #PCB layouts look good, the assembly appears very good, with proper pick&placed #SMT components and reflow soldering, not hack-job hand soldering. The components seem to be #quality, even name-brand where appropriate. There are what appear to be genuine class X and class Y #safety capacitors everywhere they should be. The front binding posts are fairly typical cheap #Chinesium ones, but appear to be from the better end of the quality spectrum as far as those go.

    One ding: the multiple #electrolytic output caps appear to be 63 V-rated ones. For a supply that goes up to 60 V, that's just not acceptable. Maybe that's because this unit can also be had in a 30 V model? Or maybe they're just hoping you don't notice.

    I'm sorely tempted to replace them with 100 V-rated ones before I use it. I'm going to add some more output #filtering as well.

    #electronics #hobby

  6. No, I didn't solder a very clearly marked polarized electrolytic capacitor backwards across the power rails of my project board tonight, causing it to smell funny, emit a loud POP, and spit its guts across the room.

    Not that you can prove, anyway.

    #electronics #MagicSmoke #electrolytic #polarized #soldering #oops

  7. No, I didn't solder a very clearly marked polarized electrolytic capacitor backwards across the power rails of my project board tonight, causing it to smell funny, emit a loud POP, and spit its guts across the room.

    Not that you can prove, anyway.

    #electronics #MagicSmoke #electrolytic #polarized #soldering #oops

  8. No, I didn't solder a very clearly marked polarized electrolytic capacitor backwards across the power rails of my project board tonight, causing it to smell funny, emit a loud POP, and spit its guts across the room.

    Not that you can prove, anyway.

    #electronics #MagicSmoke #electrolytic #polarized #soldering #oops

  9. No, I didn't solder a very clearly marked polarized electrolytic capacitor backwards across the power rails of my project board tonight, causing it to smell funny, emit a loud POP, and spit its guts across the room.

    Not that you can prove, anyway.

    #electronics #MagicSmoke #electrolytic #polarized #soldering #oops

  10. No, I didn't solder a very clearly marked polarized electrolytic capacitor backwards across the power rails of my project board tonight, causing it to smell funny, emit a loud POP, and spit its guts across the room.

    Not that you can prove, anyway.

    #electronics #MagicSmoke #electrolytic #polarized #soldering #oops

  11. The relays arrived today. I'm going to replace the 2 #electrolytic #reservoir #capactiors on the board as well - spending 17 years 20cm from a giant gas burner probably hasn't done them any favours. But those didn't arrive. I can't even tell if they've shipped.

    Coda: got the #FedEx bill for tax & #customs clearance/#brokerage fees on the first motor today. $111.

    Wanna bet northamericahvac.com didn't do the #paperwork on the 2nd motor right, and I get another #bill for that one?

    9/9

  12. The relays arrived today. I'm going to replace the 2 #electrolytic #reservoir #capactiors on the board as well - spending 17 years 20cm from a giant gas burner probably hasn't done them any favours. But those didn't arrive. I can't even tell if they've shipped.

    Coda: got the #FedEx bill for tax & #customs clearance/#brokerage fees on the first motor today. $111.

    Wanna bet northamericahvac.com didn't do the #paperwork on the 2nd motor right, and I get another #bill for that one?

    9/9

  13. The relays arrived today. I'm going to replace the 2 #electrolytic #reservoir #capactiors on the board as well - spending 17 years 20cm from a giant gas burner probably hasn't done them any favours. But those didn't arrive. I can't even tell if they've shipped.

    Coda: got the #FedEx bill for tax & #customs clearance/#brokerage fees on the first motor today. $111.

    Wanna bet northamericahvac.com didn't do the #paperwork on the 2nd motor right, and I get another #bill for that one?

    9/9

  14. The relays arrived today. I'm going to replace the 2 #electrolytic #reservoir #capactiors on the board as well - spending 17 years 20cm from a giant gas burner probably hasn't done them any favours. But those didn't arrive. I can't even tell if they've shipped.

    Coda: got the #FedEx bill for tax & #customs clearance/#brokerage fees on the first motor today. $111.

    Wanna bet northamericahvac.com didn't do the #paperwork on the 2nd motor right, and I get another #bill for that one?

    9/9

  15. The relays arrived today. I'm going to replace the 2 #electrolytic #reservoir #capactiors on the board as well - spending 17 years 20cm from a giant gas burner probably hasn't done them any favours. But those didn't arrive. I can't even tell if they've shipped.

    Coda: got the #FedEx bill for tax & #customs clearance/#brokerage fees on the first motor today. $111.

    Wanna bet northamericahvac.com didn't do the #paperwork on the 2nd motor right, and I get another #bill for that one?

    9/9

  16. Unrolling the Mystery Inside an Aluminum Electrolytic Capacitor - When we remove the enclosure of modern electronics, we see a lot of little silvery cylinders wrapped... more: hackaday.com/2020/07/01/unroll #electrolyticcapacitor #electrolytic #capacitor #teardown