(Topic ID: 256802)

New Bench Top Power Supply


By oldschoolbob

3 months ago



Topic Stats

  • 10 posts
  • 5 Pinsiders participating
  • Latest reply 3 months ago by xsvtoys
  • Topic is favorited by 3 Pinsiders

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    workbench 2018-08 (resized).jpg
    Tenma-72-6905 (resized).jpg
    power supply Bel Merit PS501A (resized).jpg
    Kepcp PT70 front power off (resized).jpg
    HP 6205C front 2 (resized).jpg
    rd6006 (resized).jpg
    dps5005 (resized).png

    #1 3 months ago

    A while back I built (with the help of a lot of people on here) a perfect power supply for testing MPU boards. 5 volts, 12 volts, and 24 volts (for zero crossing). I use it all the time.

    While building it someone here suggested this:

    dps5005 (resized).png

    amazon.com link »

    I thought it looked interesting so I filed it away.

    The other day I pulled it out of memory and looked it over more closely. While researching it I found this newer model.

    rd6006 (resized).jpg

    amazon.com link »

    I already have the best pinball power supply and a variable power supply but this thing has so many bells and whistles I can’t help but be intrigued. I think I’ve become a power supply junky. I wish I could find a good reason to need this.

    What do you think? Anyone have one of these?

    Here’s a video:

    #2 3 months ago

    EEVBlog or BigClive did a review of it.

    I didnt watch the whole way through to see if it was any good or not.

    #3 3 months ago

    I just watched Dave's review again.

    He wasn't too happy with the output voltage being a bit noisy - but it is a switching power supply. Also he couldn't get the WiFi or USB interface to work. I don't understand what you'd want that for anyway. How often do you need to operate your power supply from another room?

    Overall he gave it a big thumbs up.

    I still don't know why I need it but I'm really thinking about getting one.

    Thanks

    Bob

    #4 3 months ago

    Power supply junkie? You can always use more power! But I went back in time to get mine. This one for $60 from eBay, this is the real-deal old-school shit, not that made in China new stuff. This is after I cleaned it up and removed the old calibration stickers and such. Works great. This is the one I use the most.

    HP 6205C front 2 (resized).jpg

    I also bought this one for no good reason other than it looks cool. Also about $50. It works good too if you just need a few volts here and there.

    Kepcp PT70 front power off (resized).jpg

    I also got this one for $10 from a local shop that was closing. Seems to work OK.

    power supply Bel Merit PS501A (resized).jpg

    #5 3 months ago

    Since we're sharing...

    Tenma-72-6905 (resized).jpg
    #6 3 months ago

    Those old HP dual supplies are true work horses. Always works and easy to use (and not made in China).

    #7 3 months ago

    Some really nice power supplies you guys have.

    And xsvtoys, you found some real good bargains.

    Bob

    #8 3 months ago

    This thread got me curious, always wanted a decent power supply for board work, liked the dual output feature those little switching power supplies never seem to work right when bench testing a mpu, just snagged a HP 6502 dual power supply for 35.00 should be a great addition to the bench

    #9 3 months ago

    To start a bench setup, just grab a known working computer power supply, and buy one of those boards that plugs onto the ATX connector to give you banana plugs. It even has built in fuses.

    #10 3 months ago
    Quoted from oldschoolbob:

    Some really nice power supplies you guys have.
    And xsvtoys, you found some real good bargains.
    Bob

    If you don't mind spending a little bit of time searching and monitoring eBay you should be able to find what you want at a good price. You need some patience to wait for what you want to show up for a good price. Or just peruse what shows up when you search for vintage test equipment and if you see something good snatch it up. In fact, I got most of the stuff with local pickup so I didn't have shipping charges, which can get expensive for the heavier stuff. I got the nice Tektronix 465B scope that way. And also the Fluke 8050A multimeter, plus various function generators, frequency counter, and such. All that good stuff from the 80s is being sold off, and I think most it will probably work for a long time. I got the Tektronix in fully tested and operational condition and it is in beautiful cosmetic shape for $150 with probes. That thing probably cost something like $3,500 when it was new, in 1980s dollars.

    workbench 2018-08 (resized).jpg

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