Sigh... Sadly it is from.an era long before small system standards. How cool would the world be if we could have standardised on a single floppy format.
We couldn't even get RS232 right.... On Sat, 14 Mar. 2020, 10:56 am James Zeun, <[email protected]> wrote: > You know what, it's very tempting as I find soldering very cathartic. But > the cable is ordered now. > > I'm gutted the DVI writes floppys in a different format to the TPDD. Curse > you Tandy! > > > > On Fri, 13 Mar 2020, 6:16 pm Brian K. White, <[email protected]> wrote: > >> On 3/13/20 5:15 AM, James Zeun wrote: >> > Well of course I knew I could buy a £4 cable and save myself half an >> > hour soldering 40 wires, well 80! What do you take me for some sort of >> > idiot? *Cough* :-P >> > >> > There's always someone with a bright idea. Well I'm going to make >> coffee >> > and try to not feel too disappointed about all that soldering I'm >> > missing out on, now I have a 30cm extension cable ordered. >> > >> > *Goes off grumbling to himself* >> > >> > Thanks Brian! ;-) >> >> Someone else said splice you didn't, but in this same conversation, so I >> just addressed it all in one post. >> >> Are you *sure* you don't want to perform 80 solder and heat-shrink >> splices? It can be very zen. :) >> >> -- >> bkw >> >> > On Fri, 13 Mar 2020, 5:34 am Brian White, <[email protected] >> > <mailto:[email protected]>> wrote: >> > >> > It's easier than that. If you take pretty much any idc connector and >> > put it back to back or hed yo head with another, the end result is >> > the "twist" where pin 1 switches places with pin 40, pin 2 switches >> > places with pin 39, etc. >> > >> > What I mean by "any idc" is, for instance, a wire-to-board back to >> > back with a male pin header. That makes a Model 102 or 200 cable. >> > >> > >> http://tandy.wiki/Disk/Video_Interface:_Cable#Cable_supporting_models_102_and_200_only >> > >> > Another form of the same thing is if you put 2 male pin headers back >> > to back, that makes an adapter that can serve as the the twisty part >> > on a cable set that works on all 3 models. >> > >> > http://tandy.wiki/Disk/Video_Interface:_Cable >> > >> > Or head to head: Mike Stein showed me (well everyone) that if you >> > just take any standard 40 pin cables and butt two female ends face >> > to face with a "gender changer" pin header, that results in the same >> > twist. >> > >> > That page above has links to buy all the odd parts for the different >> > ways to do it. >> > >> > But for a pcb to do the switcheroo, the pcb is nothing more than 40 >> > straight lines just to make it easier to solder two plugs back to >> > back. See the "twist adapter" link in that page. >> > >> > You don't have to splice anything to make the cable longer. Just buy >> > or make a bog-standard 40 pin male-female extension cable, and stick >> > it on the DVI end of the cable. They are readily available pre-made >> > and cheap these days in the form of "gpio" cables for arduino or >> > raspberry pi. >> > >> > You can search "male female gpio" or similar on ebay or just pick a >> > length here: >> > >> > http://www.cablesonline.com/240pinidedir.html >> > >> > -- >> > bkw >> > >> > On Thu, Mar 12, 2020, 5:33 PM RETRO Innovations >> > <[email protected] <mailto:[email protected]>> wrote: >> > >> > On 3/12/2020 4:17 PM, Mike Stein wrote: >> >> >> >> Hi Jim, >> >> I wouldn't call it a newbie mistake ;-) Those 'non-standard' >> >> 40-pin DIP headers have been impossible to find; maybe with >> >> your resources you can find some somewhere so they can just >> >> simply be crimped on. >> > >> > I'm wondering if the switch could be made at the other end, with >> > a small PCB and the respective female header attached to it... >> > >> > >> >> >> -- >> bkw >> >
