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I know some of you are here for the tapes, right? So, more experiments with DIY tapes!

First, a GIF of actually making the tape - applying Fe3O4 over regular scotch tape.

Fe3O4 - black iron oxide or Mars Black - actually resulted in a very good tape!

I've made a few recordings and posted them on YouTube. I have no cable to capture the audio from the reel deck, so:

0) No tape, audio playback from my laptop over Elizabethan's tube amplifier - sort of a baseline of the quality youtube.com/watch?v=pSGPdbGg2f4

1) Playing the very same song from Fe3O4 tape that I made this evening - youtube.com/watch?v=tl1x1X-kgWU

2) And now Fe3O4 tape made out of paper and glue - it sheds like crazy, the glue needs to be replaced or baked youtube.com/shorts/K4qBm3tucTI

Cleaning up the Fe3O4 - black pigment - from all over the desk was not fun. Thank you my beloved @yottatsa for helping a lot with it. If I were to use paper tape again, I'd run the whole length of the tape between two sponges before running it in the deck.

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@nina_kali_nina @yottatsa babe wake up, new tape post dropped 🥰

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@nina_kali_nina @yottatsa this is amazing! Will probably try to reproduce your tape for my machine :3 thank you for sharing the progress

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@janamarie @yottatsa make sure to clean residue dust from the tape before using it, and please do share the results!

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@janamarie @nina_kali_nina @yottatsa same, this has just gone on my way too long list of "things I might be able to DIY now"

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@nina_kali_nina
Waoh ! The sound on scotch tape seems pretty clear !

@yottatsa

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@jelora @yottatsa yes! The beginning sounds less clear because the tape was damaged a little, but later it's pretty clear until the chorus kicks in with its lows and highs over the roof. Still, the voice can be heard really well

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@nina_kali_nina really cool!!! what's the song?

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@NucleicAcidTest Thanks! It's my song, it's called "Aiwokoroshi"/愛を殺し and is performed by LEN or Sakakibara Yui - both versions are canonical.

LEN version with video: youtube.com/watch?v=pp-XF5gKh18

Sakakibara-san's version: youtube.com/watch?v=EF-uPqzh-70

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@nina_kali_nina now do floppy disks! :)))

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@root42 it was your comment that made me push my luck: tech.lgbt/@nina_kali_nina/1112

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@nina_kali_nina You are mad. I love it! Yeah, you need to cover the ferric powder with some coating to make it glide better, reducing friction. I am looking forward to artisinal floppy disks!

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@root42 it worked just fine without covering the oxide for audio tapes, so we YOLOed it. Atsuko was concerned that there'll be friction inside the floppy pocket, but it is actually fine. It's just the head pinching in the surface too much~

I cannot promise I'll get a working 5.25" ever, but I do hope to make a rotational computer media drive one day.

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@nina_kali_nina I think more research is needed on how the media companies did it back in the day. If you could make small scale manufacturing of floppy disks you could earn some money. :) Disks are getting scarcer by the day!

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@root42 my curiosity here stems from "DIY" attitude. I can't imagine floppies being a viable commercial product again, but I can imagine hobbyists recreating the tech to fix stuff or to make new lo-fi stuff

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@nina_kali_nina @yottatsa Awesome! And next please a diy 5.25" floppy disk 🫶😄

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@nina_kali_nina Amazing that you tried that! 😍🙏 Thanks so much for even considering this, let alone give it a go. Did not go quite as well as with the cassettes, but anyway 👌👍👍👍

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@nina_kali_nina @yottatsa That's actually a really rad experiment and not even something I would have thought was possible. Cool!

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@computercellar @yottatsa I was certain it's possible because it was a thing since 1929 :) If they could do this in a lab in 1929, and it is still legal to do, I [probably] could do it in my garage

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@nina_kali_nina @yottatsa
I'm sure there must be a generic, but this double-sided Contender seam tape is amazing stuff. Super tough and tenacious sticky.
contender.co.uk/Category/Conte

www.contender.co.ukContender D/S Seaming Tape
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@Okanogen the original tape for US reel to reels was literally 3M Scotch, so...

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@nina_kali_nina
Oh I know! I actually did a chemical lab pack (clean out) at 3M at their campus in Maplewood, MN. The building is designed after their Scotch tape packaging of the 50's. They had chemicals and weird materials dating back to the 40's in there.
Surplus stores around here always have tons of 3M product overruns.

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@Okanogen omg!!

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@nina_kali_nina @yottatsa
Your endeavour reminds me of this bit from "The secret life of (machines) the video recorder". A great series from Channel4 in the UK, broadcast in the late 80's.
Tim Hunkin has remastered the series episodes and made them all available on this you YT channel.
Nearly all the machines that he tells 'the secret life of' are now obsolete or have been superseded by new tech and the modern versions work in a completely different way
youtu.be/g1JlUcFKm5o?si=_cfjiC

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@nina_kali_nina @yottatsa Just wondering if this project and it's details are being documented in a git repository or some kind of wiki, if anyone else wanted to try? It's seriously impressive the quality out of the scotch tape (video 1), seems viable in some kind of future where no more tapes exist :)

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@jasonnab @yottatsa this is the documentation~ There's been a few people who wanted to try it out, but I haven't heard their results yet. Given that this whole process, with the right components, takes two hours per full length of tape at most (including cleaning up), I recommend everyone interested to just try and replicate it. :)
The easiest solution so far is:
1) quality Scotch tape
2) fine powder of Fe3O4
3) apply with gloves generously
4) wipe extra with a sponge - you'll be surprised how little it sheds if your adhesive is good
5) ???
6) PROFIT!!!

Fe2O3 is (subjectivly) less staining, so less cleaning needed after making the tape. But you need to get gamma-Fe2O3, ideally with smallest magnetic domains possible, and this part of the project is still in its research stage.

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@nina_kali_nina @yottatsa Magnetic tape is my favorite medium. What fun.

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@indigoparadox @yottatsa oh! Indeed it is!