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Springboard Breadboards??

Discussion in 'Electronic Design' started by bart, Mar 25, 2007.

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  1. bart

    bart Guest

    Hi all,
    I was wondering if anyone here might know if the old springboard-type
    prototyping breadboards still exist and are still available.
    The springboards are/were a grid of vertical springs on a plastic
    board.
    The springs are pretty much the same ones on those Radio Shack 101
    project electronics trainer boards.
    I'm often prototyping with power resistors / large components & miss
    those suckers we had way back in my school days.
    If not the boards themselves, maybe the springs to make one?

    Thanks in advance! :)
    B
     
  2. Guest

    I know what you're looking for, they were a staple in training labs
    pre-60s. I kind of think they went out with tubes and large discrete
    components. You might find some in a surplus electronics place, but
    those types of places are dying out, too. If you can find a ham radio
    swap meet, that's probably your best bet. Leaded components are dying
    off, too, surface mount rules these days.

    Stan
     
  3. Rich Grise

    Rich Grise Guest

    In 5th grade (approx. AD 1959), I won a blue ribbon at the Science Fair
    with one of those things. ;-)

    Nowadays I use an ordinary proto-board, and if I have a component with
    fat leads, I cut the leads short and solder a little pigtail of #24
    wire to them.

    If I need more power than that, I just solder them rat's-nest style.

    Good Luck!
    Rich
     
  4. D from BC

    D from BC Guest

    I think I had 3 of those in my youth..
    I recall scavenging the kits for parts. Just springs left.. :)

    If I had to find springs I'd check out:
    Hobby shop
    Hardware store
    Online spring shop
    Ebay
    VCR repair shop or similar

    Maybe buy the wire and make the springs...
    D from BC
     
  5. Mike Berger

    Mike Berger Guest

  6. Guest

    I want to find the other style of breadboarding stuff:
    the components were mounted on plastic strips or blocks that had Lego-
    like metal tits that stuck into the breadboard, and the connections
    were various lengths of wire with crimped-on clips that pushed onto
    the component terminal posts. You could stack a lot of connections on
    one post. I built an oscilloscope in high school wityh this stuff; the
    storeroom had a huge pile of it that nobody used because they were
    trying to figure out how to connect batteried to light bulbs. There
    were vacuum tubes and sockets, a 2" CRT, coils and transformers,
    everything. Regens were possible but superhets would have required
    some coil winding.
    Now I teach a class on AIrcraft Systems and it would be
    nice to have this setup to teach some basic electronics. There are
    kids out there that might find a real interest in it.

    Dan
     
  7. Guest

    I'd check the mcmaster carr online catalog (www.mcmaster.com) for
    various springs - not the only source of course, and won't have the
    most unique items, but often a good place to start.

    Not quite sure about mounting them though - appropriately threaded
    studs that they could screw onto might be a possibility. I think the
    radioshack ones were stepped where they went into the cardboard. RS
    had a mechanical "computer" kit that had probably about 100 of them
    (and no "electronics" other than batteries, bulbs, and switches)... if
    you could find one of those that might be a source.
     
  8. Rich Grise

    Rich Grise Guest

    The kind I got in the 1960s had a sort of wire loop that came up from
    the bottom, something like this (please excuse trashscii art):


    ^
    | |
    | |
    | |
    / \
    \ /
    ===============| |===============
    pegboard | |
    ==============/ \==============
    -------- -------- < end of loop part

    and the springs had a narrow end that locked onto the bulge. You'd
    connect to it by pressing the spring down and sticking the wires through
    the loop. The kit even came with a special tool to install them, which
    was basically half a rubber ball with a hole for the spring; you'd poke
    the loops through, lay it on the bench, and press the springs down over
    them.

    Hope This Helps!
    Rich
     
  9. A related question....does anyone other than Radio Shack make
    electronic educations kits?

    TMT
     
  10. Sure. And others sell them, R P Electronics for one.
     
  11. Leon Fisk

    Leon Fisk Guest

    On 28 Mar 2007 19:07:29 -0700, "Too_Many_Tools"

    I don't know who makes them, but Carl's Electronics has some
    stuff:

    http://www.electronickits.com/
     
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