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, <b.kenyo...@gmail.com> 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, <b.kenyo...@gmail.com > > <mailto:b.kenyo...@gmail.com>> 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 > > <go4re...@go4retro.com <mailto:go4re...@go4retro.com>> 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 >
