Want to bend an SK-1? This might give you some ideas


#1

Some time ago… well actually ages ago I built this thing here:

https://www.youtube.com/watch?v=0wnPITTejyo

And since everybody kept asking me to share schematics and stuff, I’ve put everything together into a nice PDF so people could try and do the same (hopefully better).

If you’re into this type of thing, you can check the pre-release version here. I’m fixing the last “bugs” in the text and will soon release the final version together with some CAD files for the panel, in case somebody needs a starting point.

Download PDF here:
https://cp.sync.com/dl/5d88029b0#riixtczb-8ybc9fxx-w6ybvxay-q3zdrh7v

If you have errors to report or there’s things you don’t understand, please let me know!


#2

Nice work Hannes!

And well done for documenting everything for the benefit of others - I know how long that can take.

Martin


#3

Hehe, yes it took some time, but if people do something great with it, it’s going to be worth it!


#4

Final version is online! Also I’ve added the CAD files for the front panel and some info on the case design in general.

http://www.papernoise.net/concertodrone/

Please refer to this page for future updates.


#5

Dear Hannes, thanks a lot! This is a bunch of useful information - and it looks good, too :slight_smile:

There must be a second (rather beat-up) SK1 “somewhere” in a box “somewhere” in my cellar … The main SK1 I have is from a guy I went to school with. He got it as a present from his Grandmother back in 1985 or '86 when they hit the german market. Its boxed, still with the original manual, in good shape + it has a personal history to it. I can remember us burping and farting into the mic and play it back on reverse :wink: To me, this is a collectors item I would never even dare to mod. I also used it a lot for ambient/soundscapes I made in the late 1990s.

But the second one I have is in a poor shape. I bought it at a flea market for 1 or 2 Euro, it looks bad but works perfectly. This one I always wanted to mod/bend some years ago. Now I’ll just need to find it again. But I know IT IS there, “somewhere”.

Thanks for reminding me.


#6

If I had an SK-1 like yours with memories attached to it, I wouldn’t try to mod it either. Actually even less is enough. We have a mint VL-1 with the original pouch and a working display (a rarity) here and even if it hasn’t much emotional value I wouldn’t dare to bend it. It’s also my wife’s and she would kill me if I tried any bending on it… but the point is still valid I guess :slight_smile:
Anyway, glad if this can be of inspiration/help or just a reminder to do a project that was sitting in the drawer for some time.


#7

I have a similar story to to my SK-1. I got it for my 11th birthday or maybe it was ‘Sinterklaas’ probably in '86. I think it might have been the reason for me to get into music and synths. But i was interested in these things obviously then already.
I used it a lot in a music group i was in in the early 90ies. We drove it thru a wahwah pedal and a boss delay and it was our only ‘synthesizer’. The other sounds came from a AKAI S01 sequenced by an Alesis SR-16. We recorded a new track almost every evening. I’ve got about a dozen 90 minutes cassette tapes full of stuff we did in those years.


#8

My first “synth” was a Casiotone CT-380… unfortunately a rather boring one compared to the SK-1… but I really regret giving it away now…