> -----Original Message----- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Noel > Chiappa via cctalk > Sent: 04 July 2017 15:53 > To: cctalk@classiccmp.org > Cc: j...@mercury.lcs.mit.edu > Subject: Re: tape baking > > > From: Al Kossow > > > You need moving air, though. > > I'm not sure how you do that well in a TK50 style cartridge. > > Hmm, maybe not? I start with the need for moving air - which I do not dispute, > just wondering what the needed effect is. I don't think it can be removing out- > gassed material, I think it has to be temperature leveling - making sure the > heat from the heat source is spread evenly? So one probably doesn't need > moving air inside the cartridge, _if_ its temperature is even? > > My _guess_ is that a TK50 cartridge left for a long time in a bath of a constant- > temperature gas will probably eventually come to an even temperature > internally; some parts will warm faster than others, but eventually it should > 'soak' all the way through; no part will be able to _stay_ cooler. And without an > internal heat source, no part should be able to come to a higher temp. > > I'm just wondering if there are internal (rubber) parts that won't like a temp > that high? >
I did mine for never less than 8 hours, although I did occasionally "top up" with an hour or two if I needed to come back to a tape a couple of days later. That seemed to fix the tapes that started to stick a bit again after a while. I think you are right, that it is about thoroughly warming all the tape, after 8 hours there should be no doubt that it will have percolated everywhere. 45C isn't that hot, not much hotter than a very hot summer's day in many parts of the world, so I would expect any cartridge to survive those temperatures. In fact you prompted me to check, there is a little sheet that comes with them and it actually says to store them at temperatures no higher than 45C, I had never checked before! Regards Rob
