at first i was thinking "okay... what kind of trick is this going to be"... but DAAANG! Those are awesome. I gotta get a bunch!
-s On Thu, Sep 20, 2018 at 8:34 AM Rick Shear <rdsh...@comcast.net> wrote: > I saw the SparkFun pins a while ago. It was before I had rekindled my > model T interest and had completely forgotten about them. I think they > would be a neat addition to a variant of the REX board and an actual > carrier. I think if I'm not mistaken the REX as it currently is designed > is too long to fit in a carrier. > > The other pins you linked at solutions cubed I've seen clipped on the edge > of LCD displays but look interesting as possible variant. > > What's funny, I was seriously considering cutting the pins off some old > IC's and putting them on a REX until I found the REX's physical dimensions > are not the same as the plastic portion of the ROM's that ride in the > carriers. > > > On Thu, Sep 20, 2018 at 3:59 AM Brian White <bw.al...@gmail.com> wrote: > >> Holy cow cool... >> >> One of the significant challenges developing new devices to put into the >> old devices is simply the physical pins. >> >> Standard common pins, whether square or round, are usually too big to >> work (without damage) in most chip sockets, and in several instances there >> is not enough vertical space available to remove a normal dip andnput in a >> pcb with pin headers with shoulders. >> >> We resort to measures like: >> http://tandy.wiki/Model_200_RAM >> >> I don't know how long these things have been around but, but just now is >> the first time I ever saw them... >> >> https://www.sparkfun.com/products/14086 >> >> Dang that's a problem solver. >> >> For one thing I'm imagining a tweaked version of REX where these are >> soldered to the top surface pointing straight out parallel with the pcb, >> and after you remove the jigs you bend the pins down 90 degrees and put the >> pcb right in to a real molex carrier (or a 3d printed copy, the files for 2 >> versions are available, and at least one service, Shapeways, can produce >> prints that work, so it's not limited to my supply of original ones). >> >> REX in a proper carrier. Polarity-keyed. No extraction ribbon. No spacer. >> No risk of mangled socket pins from getting the spacer wrong. No flapping >> copper flags possibly shorting between pins from the router cutting the >> castellated half-holes. >> >> Same goes for the simpler Figtronix eprom adapter boards. >> >> These would also be useful for a main rom adapter that can still have >> room for both a socket on the adapter and still keep the original socket on >> the motherboard. And of course the example I mentioned above with the Model >> 200 ram where there is just no extra vertical space available between the >> socket and the enclosure door. >> >> Biggest problem is... how long will these actually be available? Those >> edge clip-on dip legs were pretty cool too, but all I can do is look at >> pictures of obsolete items you can't actually buy any more. >> >> Ok I guess you can get them, or something similar again... >> http://www.solutions-cubed.com/products-page/connector/dip10/ >> >> Not sure, maybe you could get that to work for a REX too. >> >> The option to solder parallel to the top surface and then bend down >> really makes a difference though when vertical room is tight. >> >> -- >> bkq >> > -- Scott Lawrence yor...@gmail.com
