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dnny
Joined: Mar 12, 2005 Posts: 519 Location: Helsinki, Finland
Audio files: 8
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Posted: Wed Aug 30, 2006 11:20 am Post subject:
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Pehr wrote: | dnny: What NPN transistor did you use for the LED-thingy?
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the transistors where the type i had so they where C2389
they where available and thats the only reason i used them -I´m sure other NPN´s will do the same job.
:sorry for the late reply
pehr. are you really a Meteorologist? _________________ Association of experimental electronics
www.koelse.org
flickr: cable porn group |
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Pehr
Joined: Aug 14, 2005 Posts: 1307 Location: Björkvik, Sweden
Audio files: 2
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dnny
Joined: Mar 12, 2005 Posts: 519 Location: Helsinki, Finland
Audio files: 8
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Posted: Thu Aug 31, 2006 12:05 pm Post subject:
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Pehr wrote: |
Yep, Finished my degree this summer and now I'm starting at my first job SMHI...
Btw, do you think 2N3904 will work? |
i think 2N3904 should be just fine -
Congrats on the degree. Do meteorologist have all kinds of great looking measurement gear or is it all on laptops ? you could maybe slip your SL between some radars and snap a pic
"Swedish Meteorological and Hydrological Institute" that sounds so cool. hope you enjoy your new job. _________________ Association of experimental electronics
www.koelse.org
flickr: cable porn group |
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Pehr
Joined: Aug 14, 2005 Posts: 1307 Location: Björkvik, Sweden
Audio files: 2
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Posted: Thu Aug 31, 2006 1:56 pm Post subject:
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dnny wrote: | Congrats on the degree. Do meteorologist have all kinds of great looking measurement gear or is it all on laptops ? you could maybe slip your SL between some radars and snap a pic
"Swedish Meteorological and Hydrological Institute" that sounds so cool. hope you enjoy your new job. |
Thanks!
Yes there are lots of cool looking measurement gear, mostly used by the meteorologist researchers from the universitys on their long research expeditions to the arctic. My job will be sitting by the computer handling data _________________ YouTube channel
flickr photostream
http://loxodrom.blogspot.com
http://www.garageband.com/artist/loxodrom
http://soundcloud.com/loxodrom |
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Pehr
Joined: Aug 14, 2005 Posts: 1307 Location: Björkvik, Sweden
Audio files: 2
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dnny
Joined: Mar 12, 2005 Posts: 519 Location: Helsinki, Finland
Audio files: 8
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Posted: Wed Sep 06, 2006 12:00 am Post subject:
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Pehr wrote: | Does the PSR-12 use FM? |
after reading the manual , i think it´s not FM. because they do not mention it. - but who knows?
do you have one? - open it up _________________ Association of experimental electronics
www.koelse.org
flickr: cable porn group |
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Pehr
Joined: Aug 14, 2005 Posts: 1307 Location: Björkvik, Sweden
Audio files: 2
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dnny
Joined: Mar 12, 2005 Posts: 519 Location: Helsinki, Finland
Audio files: 8
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Pehr
Joined: Aug 14, 2005 Posts: 1307 Location: Björkvik, Sweden
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kb
Joined: Sep 23, 2006 Posts: 5 Location: USA
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Posted: Sat Sep 23, 2006 8:44 pm Post subject:
possible yamaha home FM keyboards |
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New member, first post.
Months ago I was trying to keep track of which home Yamahas were FM. This is the partial list I came up with (tracks only full-size key models):
Definite Yamaha FM Keyboards
PSR 6
PSR 21
PSR 22
PSR 36
PSR 41
Possible Yamaha FM Keyboards
PSR 11
PSR 12
PSR 19
PSR 28
PSR 32
Probably not
PSR 2
PSR 3
PSR 15
PSR 18
These are based somewhat on personal experience, but mostly on manuals. Can't vouch for perfect accuracy.
Weird: I have the PSR-36 and it doesn't have your garden variety DIP FM chip - it seems the stuff doing FM is either a 64 or 80-pin SMT mounted on the bottom of the main PCB. Definitely not an easy hack (I'm scared to) and maybe it does the FM in DSP?
I have done the 'cut data traces between CPU and FM chip' on an old PSS170. Worked very nice. The wrinkle I added was to minimize the number of switches or modular pins you had to use; basically a one-button press through a scrambler to goof up the voice.
http://home.earthlink.net/~kerrybradley/id3.html |
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Pehr
Joined: Aug 14, 2005 Posts: 1307 Location: Björkvik, Sweden
Audio files: 2
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Pehr
Joined: Aug 14, 2005 Posts: 1307 Location: Björkvik, Sweden
Audio files: 2
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AbraC
Joined: Aug 04, 2006 Posts: 3 Location: providence rhode island
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Posted: Tue Sep 26, 2006 9:02 am Post subject:
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pss 790 is pcm. thats the only one i know. |
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yunus510
Joined: Jan 03, 2006 Posts: 30 Location: indonesia
Audio files: 1
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Posted: Tue May 22, 2007 10:48 pm Post subject:
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does anyone can help me for pin assignment from the cpu.
my matrix key was broken. i plan to replace it with matrix key from other keyboard..
thx b4 |
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12pointfont
Joined: May 30, 2007 Posts: 3 Location: Panama City, FL
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Posted: Wed May 30, 2007 3:39 pm Post subject:
great thread! |
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just bought a Pss-140 and a Psr-6 off eBay fer 20 bucks with a/c adapters what a deal!
anyway i just bent the psr-6 and it worked okay but was extremely glitchy and i think i killed it...haha...after opening it up i realized there was some contact between two of the pins...and it might be dead. i'm going to move on the pss-140 though...personally i liked it more than the psr-6...anyway!
ill put up some pictures when i'm done, and does anyone know of any actual bends other than this such as pitch or gain bends? i've read of it being possible on some yamaha's with the JRC amplifiers but the only 8-pin IC on the psr-6 is an op-amp. i tried to improvise by looking through datasheets and when i went and soldered up the potentiometer and switch and turned it on it just make fuzzy noise...(also may be why its dead now) i dunno...any ideas? kinda new to electronics...but getting smarter and leaving destoryed toys in my path. |
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ickystay
Joined: Nov 15, 2006 Posts: 142 Location: Oregon
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Posted: Wed May 30, 2007 3:50 pm Post subject:
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Add the PSS-170 to the list. I just got one from the goodwill and was happy to see a YM2413 inside!
Thanks for all the cool info in this thread! |
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12pointfont
Joined: May 30, 2007 Posts: 3 Location: Panama City, FL
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Posted: Thu May 31, 2007 8:14 am Post subject:
the portasound |
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did your pss have auto accompanyment or wehatever too?
i hear it works well with this bend. |
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LukeDI
Joined: Sep 23, 2006 Posts: 50 Location: Boston MA, USA
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Posted: Wed Jun 20, 2007 7:20 pm Post subject:
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I've been looking for a first bending project and I just happen to have a PSR-6 sitting around now I know its fate.
Two questions though; first I know not to have the thing plugged into the mains while bending it but the bend doesn't mess with the power requirements does it, i.e. can I still plug in the bent board? And second with all the switches on and no patches made will the thing sound like it isn't bent? (Not that I'm worried about preserving the 'fine' sound of the original I'm just curious) |
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12pointfont
Joined: May 30, 2007 Posts: 3 Location: Panama City, FL
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Posted: Thu Jun 21, 2007 10:36 am Post subject:
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yea it works like normal when all the switches are on. and it works plugged in. well mine does its a pss-140. i think i killed my psr-6.
anyway, yea. you don't really need to have it on and running to do this bend. its more of a follow the schematic than experimentation. yea. just don't overheat the cpu or solder any of the pins together. it will kill it.
good luck. |
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LukeDI
Joined: Sep 23, 2006 Posts: 50 Location: Boston MA, USA
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Posted: Thu Jun 21, 2007 4:22 pm Post subject:
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12pointfont wrote: | just don't overheat the cpu or solder any of the pins together. it will kill it.
good luck. | Thanks, and that's good advice for any project me thinks. |
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listenact
Joined: Jul 06, 2007 Posts: 1 Location: Hollywood, CA
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Posted: Fri Jul 06, 2007 12:09 pm Post subject:
Bending a PSR-6 |
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Hi, I'm just gearing up for my first bend, and I've got a PSR-6 too. . . Seems to be a common starting point.
Has anyone discovered one particular bend or mod that they've really found useful and enjoy for this keyboard?
I actually sort of like it and don't want to make it totally glitchy, I'd just like to expand it a little .
Thanks so much! Reading all this had been really helpful! |
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ickystay
Joined: Nov 15, 2006 Posts: 142 Location: Oregon
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Posted: Fri Aug 03, 2007 11:30 am Post subject:
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Yesterday found a nice PSS-560 at the Goodwill ($10!). Looks like it is a PSS-470 with 4 extra switches for drum sound variations. It has the YM3812, so add another Yamaha FM keyboard to the list. |
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Matana Teknik
Joined: Sep 29, 2007 Posts: 18 Location: Amsterdam
Audio files: 1
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Posted: Sat Sep 29, 2007 10:09 pm Post subject:
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I'm bending a PSS-570 at the moment because I had one. Never thought it could produce the sounds i'm getting. I'm totally new on this but I think i'm in the right direction. Did some research on the chip here.
http://en.wikipedia.org/wiki/Yamaha_YM3812
and it has ADSR!!! and much more...
I connected two pins and that opens all ..... now it produces tekkno/acid and hardcore shit....wicked!!!
But more on this in the topic Yamaha PSS-570........
Gonna fiddle a little BIT more.. _________________ - repairs - maintenance - modifications - custom build -
www.facebook.com/matanateknik |
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patrock
Joined: Jan 25, 2008 Posts: 3 Location: Athens,Ga
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Posted: Sun Jan 27, 2008 7:27 am Post subject:
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DenDer wrote: | I'm bending a PSS-570 at the moment because I had one. Never thought it could produce the sounds i'm getting. I'm totally new on this but I think i'm in the right direction. Did some research on the chip here.
http://en.wikipedia.org/wiki/Yamaha_YM3812
and it has ADSR!!! and much more...
I connected two pins and that opens all ..... now it produces tekkno/acid and hardcore shit....wicked!!!
But more on this in the topic Yamaha PSS-570........
Gonna fiddle a little BIT more.. |
Ok, my Yamaha PSR-11 has the same YM3812 chip. I can get insane bends out of the preprogrammed loops, but I want to manipulate the key sounds, any hints? |
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Kassen
Janitor
Joined: Jul 06, 2004 Posts: 7678 Location: The Hague, NL
G2 patch files: 3
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Posted: Fri May 09, 2008 7:38 am Post subject:
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I just opened up a salvaged PSR3 and that one can go on the list of "definitely not FM", at least it doesn't have the FM chip, just the YM7137 CPU and a LA4192 amp _________________ Kassen |
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