El Instruments Digi Designer

[Don Buska]

Doc,

One of the nice features of eBay is the ability to check the little box 
called "Completed Auction" if you use the Advanced Search.  This will 
allow you to check back for similar items over the last 30 days and see 
if they sold and what they sold for.  It beats wasting money trying to 
sell something that isn't in demand nor selling.

Regarding your Digi Designer I did a "completed" search on eBay.  Do a 
search for item 280038586354.  It was offered for a starting bid of 
$9.99 but received NO bids.  So obviously there isn't a big demand.  One 
problem with those breadboarding assemblies is the contacts inside the 
plastic form start to tarnish or corrode after a few years and you end 
up getting poor connections on inserted parts and wires.  I've seen some 
in really bad shape.  I have a few of these breadboards and even being 
kept in a dry climate I find that I get more poor connections now.  I 
think they made a version that had gold plated contacts, but who knows 
how thick the plating was.  It could be like the gold plated D-104's 
that I find more with worn off plating and rust.  Seems like the chrome 
D104's last much much longer.  Anyhoot I digress. 

73

Don N9OO


Lewis c Emerson wrote:
> Guys,
>
> As some of you know, I'm having to get out of the ham business because of
> advancing age.  My oldest son told me, "Dad, if there's any of that old
> stuff around and I am the one to clean out the house, I'll get a dump
> truck up to the back door and haul it to the city dump".  Now, he was
> overstating things, I'm sure, but you get the idea.
>
> I've been trying to break into the E-Bay game, but I've read, here, and
> in other places, about problems there so I'm going s l o w as a
> cautionary measure.  Today, they are having a low-fee insertion special
> and I'm thinking of putting up a few more small things.  I am reluctant
> to put big items up there - yet.
>
> Does anyone have any idea at all what the small Digi Designer from EL
> Instruments might be worth?  This is a really neat gadget for bread
> boarding digital circuits, teaching about Boolean algebra, digital
> devices, number systems, digital gates like the AND, NAND, OR, NOR,
> counters, and the like.  It has the logic power supply, the logic
> switches, variable speed pulser, LED indicators, logic switches, plus the
> bread boarding plate that accepts DIP 8, 14, 16 pin ICs, connected up via
> patch cords - or bare #22 gauge solid wire, etc.
>
> Again, there may be a better to post queries like this, but this is about
> the only place that i know about where one can post ham/electronic
> questions and get straightforward answers.
>
> Many tnx again for such kind help.
>
> Doc, W4ITJ
>
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