ChanServ changed the topic of ##yamahasynths to: Channel dedicated to questions and discussion of Yamaha FM Synthesizer internals and corresponding REing. Discussion of synthesis methods similar to the Yamaha line of chips, Sound Blasters + clones, PCM chips like RF5C68, and CD theory of operation are also on-topic. Channel logs: https://freenode.irclog.whitequark.org/~h~yamahasynths
<cr1901_modern> https://twitter.com/dmatech2/status/1261804829506224131 This is clever and I love it!
<Nerionaya> oh wow that's wild
<cr1901_modern> I want to source those metal hooks.
<cr1901_modern> (thankfully it's expired)
<Foone> I'm hoping to get that from the poster and fully reverse it. it's very neat.
<cr1901_modern> If you can find a source on those metal contacts, let me know. Would be cool to have a template for designing ones own boards
<cr1901_modern> I've heard of IBM PC peripherals where you attach a board to the 8088 socket
<cr1901_modern> but nothing quite like this
<whitequark> these things are simple enough you could just ask a machine shop to stamp some for you
<whitequark> it's super unlikely someone still makes those
<whitequark> but... it's a bent piece of metal. a few engineering hours. you could afford tooling up to make these even in the US
<whitequark> though that would be kind of dumb and a waste of money
<Foone> welcome to retrotech
<cr1901_modern> ^Yes, that's true
<whitequark> like, i'm quite sure i could ask around in russia and get a quote for these
<whitequark> it looks like uh... one simultaneous cutting and stamping operation
<whitequark> i'm pretty sure that any tool&die shop would be happy to make a die for these with nothing but drawings of the final product
<whitequark> then you could have a few million of them made
<whitequark> dunno what for, but you could
<cr1901_modern> The Amiga community already did that for a very uncommon DB connector
<cr1901_modern> so def has precedent
<whitequark> this is like 90% less risk than the connector, or cost
<whitequark> honestly if you had GOST drawings i'd offer to contact some russian shops
<whitequark> ISO drawings could work too
<whitequark> but i'm not going to do the engineering work on these for sure
<cr1901_modern> Indeed. Uhhh, the patent filer died last year, so I can't ask him. I'll ask around.
<whitequark> ouch
<whitequark> probably better to ask an ME to reverse engineer an example
<whitequark> especially if the drawings are going to be in imperial and to ASME standards, i can't do anything with those and i'm not sure if the usual chinese shops would either
<cr1901_modern> Yea probably for the best- this was a Texas-based company, according to their website.
<cr1901_modern> Also, TIL about GOST: https://en.wikipedia.org/wiki/GOST
<whitequark> i found that machinists tend to be *really* picky over minor details in drawings
<whitequark> which is unsurprising if you consider that the drawing is a part of the work contract, basically
<whitequark> so a drawing that isn't completely clear and done to the right mutually agreed standard is mostly useless, you have to basically redesign the thing based on that drawing as reference
<whitequark> cr1901_modern: actually, innoventions should still have those design documents. you could try just emailing them
<whitequark> unlikely they have any IP interest in 30 year old invention
<whitequark> that they didn't bother paying patent fees for, no less
<cr1901_modern> Yea, worth a shot. I'll do that tonight and see what happens.
<cr1901_modern> I can see two possible advantages for hobbyists to have cards like this today:
<cr1901_modern> 1. Especially for the IBM 5150, expansion slots are a limited commodity. Yes, even today.
<cr1901_modern> 2. Less expensive PCBs (for those that don't charge extra for a hole in the center)..
<cr1901_modern> Email sent... and now I wait
<Foone> cool!
<andlabs> oh yeah
<andlabs> how do we know so much about the Commodore 65 anyway
<andlabs> did they ship out devkits like with the Commodore 900?
<andlabs> (that Unix workstation the 80-column chip on the C128 comes form)
<andlabs> and why are there no emulators if we do know this much about it
<andlabs> MAME?
<andlabs> also speaking of PC expansion cards,
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<cr1901_modern> We know so much because the commodore 65 exists, and if you have enough money, YOU TOO could have one! Just bribe one of the few ppl who one one :)
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<Foone> why not a commodore 66
<superctr_> commodore 666
<cr1901_modern> I guess they need to go in order
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<Nerionaya> the commodore 65, also known as the plus/1
<cr1901_modern> "I had a classmate who seriously thought Super Mario 65 was going to come out"
<cr1901_modern> Now we wait. Again.
* cr1901_modern is internally counting down how long before he's told to f*** off
<Nerionaya> that was quick
<cr1901_modern> whitequark: Thrilling conclusion https://twitter.com/InnoventionsInc/status/1262060547169832961
<cr1901_modern> Basically I don't think I'm getting those drawings lmao
<cr1901_modern> Nerionaya: Well, I wouldn't count that as being told to f*** off :)
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<Nerionaya> oh I just meant the response was quick
<Nerionaya> yeah it wasn't a fuck off
<Nerionaya> f***, apologies
<cr1901_modern> I don't swear-police here. I just prefer to self-asterisk
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<cr1901_modern> Anyways, the contacts could be RE'd if I wanted continue down that route. I'm sure I could get the required measurements using a micrometer.
<cr1901_modern> But... sideclock seems to be rather uncommon, and I don't want to sacrifice an existing specimen
<cr1901_modern> (speaking of which, I should buy a micrometer... anyone got any suggestions?)
<balrog> cr1901_modern: do you have calipers?
<balrog> start with those, they're significantly more versatile and sufficiently accurate 95% of the time (or more)
<cr1901_modern> balrog: Yes, calipers is what I meant
<cr1901_modern> Idk why I called it a micrometer (besides same use case)
<cr1901_modern> oooh nice
<balrog> large screen, 2032 battery, decent build
<balrog> my brother uses that one heavily (he does lots of CAD and has modeled parts for me for printing, e.g. https://www.thingiverse.com/thing:4339320 and https://www.shapeways.com/shops/odds-n-ends-1
<whitequark> cr1901_modern: ah darn
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<andlabs> not unsurprising
<andlabs> american companies don't care about their own histor
<andlabs> I'm not even sure what this is
<cr1901_modern> It's an expansion card for PC systems with a RTC. The form factor allows you to share the timer w/ another ISA expansion card.
<andlabs> hm
<cr1901_modern> Anyways the founder died 6 months ago. I wish I knew about the card then, but I can't attempt to preserve something I don't know about.
<cr1901_modern> So I'm sad, but there's legitimately nothing I could do about this.
<whitequark> cr1901_modern: you just need a microwave
<cr1901_modern> microwave?
<cr1901_modern> whitequark: I have a microwave, but I currently use the only one I have to heat food :P.
<cr1901_modern> whitequark: Ooooh, sorry :(. I've still yet to play that one
<cr1901_modern> I know I know, I need to :P
<whitequark> i just watched the anime
<cr1901_modern> I skimmed briefly to avoid spoilers. I already know S;G involves time travel and "what if John Titor was telling the truth"
<whitequark> what do you mean "if"?!
<cr1901_modern> I WANT TO BELIEVE :D! But most of his predictions have not come to pass in this timeline.
<cr1901_modern> (... yet)
<cr1901_modern> It's no longer on the Wiki page, but I recall reading that the John Titor of this timeline knew stuff about the IBM 5100 that was not public knowledge in 2000 (such that it can be used as a terminal emulator).
<whitequark> heh
<sorear> it's 2020, do we have a good way to do photogrammetry with commodity hardware yet and is the precision sufficient
<cr1901_modern> I would not know, considering I just learned the word "photogrammetry" approximately 10 seconds ago :(
<sorear> *commodity hardware and FOSS
<andlabs> uhhh
<andlabs> we didn't know the 5100 could be used as a terminal emulator in 2000?
<andlabs> I call massive bullshit
<cr1901_modern> https://groups.google.com/forum/#!topic/alt.folklore.computers/1KwE6rPwrd0 Mainframe (system 360) emulator, my mistake
<cr1901_modern> A LOT of mentions of Bob Dubke seem to be copypastes of a single source
<cr1901_modern> However, it appears he is a real person who worked with IBM: https://datacenterbrokers.com/BobDubke.aspx
<cr1901_modern> (Unless this website is also part of an elaborate ARG)
<cr1901_modern> Anyways: I WANT TO BELIEVE, okay :P?
<Foone> clearly there's a simple answer for all this
<Foone> john titor was successful, and with his repaired time machine, he avoided all the stuff he was warning us about, so we now live in the disaster-free timeline
<cr1901_modern> I wouldn't call this timeline disaster-free. But I would agree it could be worse and we are in Titor's debt.
<fseidel> I like to believe that in hundreds of years, every culture will have its own version of the John Titor myth. In the UK, it's a Microbee. In Japan, it's an FM-8.
<fseidel> s/UK/Australia
<cr1901_modern> I think Japan stole the IBM 5100 for S;G?
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<cr1901_modern> Maybe? Haven't read/watched it yet
<sorear> the wiki article says 5100
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<andlabs> woof
<cr1901_modern> Isn't your avatar a dog spirit (?) from the touhou series (I don't play touhou, though the music's nice)?
<andlabs> kinda yes