the whatchamacalit

Discussion in 'General Electronics Chat' started by coeng, Nov 3, 2009.

  1. coeng

    Thread Starter Member

    Oct 29, 2009
    32
    0
    About 15 years ago when I was taking my digital design courses in college, I remember owning a really neat breadboard kit that included an integrated power supply among other things. It had a black hardcase that it sat in. It had a catchy name too. Any idea what its called? Its probably at in parents attic and I want to find it.
     
  2. shortbus

    AAC Fanatic!

    Sep 30, 2009
    4,007
    1,530

    Hi, maybe you should look harder at Mom's!!!!$$$$$$

    http://www.allelectronics.com/make-a-store/item/PB-4060/POWERED-BREADBOARD/-/1.html
     
  3. S_lannan

    Active Member

    Jun 20, 2007
    247
    2
    usually they are called digital trainers.
    Most have ttl and cmos power supplies, debounced switches, one shots and square wave oscillators..

    hope that helps ;)
     
  4. coeng

    Thread Starter Member

    Oct 29, 2009
    32
    0
    Thanks to some detective work by my dad, we found it in his attic (as well as all my other material, tools, and components, and tons if ICs). I thought all my stuff had been thrown out. Good thing my parents are like pack rats.

    Its called the A/D Trainer PAD-234A by R.S.R. Electronics. Below is the link...I think at the time I purchased it through my school. Now I just have to figure out how to use it. I plugged it in and it seemed to power on just fine. I'll have to test it out in the next few days. I hope that sitting untouched in a box in the extreme heat/cold for the past 14 years (since 1995!) didn't do any damage. I wonder about all the ICs I have as well. Only one way to find out. Only problem is that I have to basically re-learn everything about digital circuits....things like what does a J/K flip-flop do ? ;)

    http://elexp.com/tst_234.htm
     
  5. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    If the kit doesn't have a manual, be sure to get the data sheets for all the logic IC's.

    One general rule - never leave an input open. If it's not being used, tie it to ground or to Vcc. TTL logic needs a resistor to Vcc. 74xx IC's need about 4.7K, later (74LSxx) need more like 20K.
     
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