Circuit Bent Yamaha PSS-130.

This is a video of my circuit bent Yamaha PSS-130. It has a distortion/oscialltion effect that is being controlled by a vactrol making it an envelope based effect.

Category:

Music

Tags:

• Circuit
• Bent
• Bending
• Yamaha
• PSS-130

[jamforthelamb]

Hello,

I found a couple points on the board that make an osc. based distortion. I then set the keyboard up with envelope follower, and used a vactrol to control the distortion. I didn't find much in this keyboard, so that's why I did this kind of complicated bend to get the most I could out of it.

[jonnymunday]

i would really like to know what you did if you'd like to share.

[jamforthelamb]

I found an oscillation point, and added a vactrol to control it. I didn't write a schematic when I did it (I rarely do), or I would send it to you.

[andrewgoldringmusic]

i broke the crystal off of mine and now it dont work no mo :(

[ILFZ2]

yamaha stuff are so nicexD

[julieail]

@jamforthelamb I hooked up a capicitor to two pins on the amplifier chip and made an oscillator/booster/distorter. I super low capacitors actually cause a tremolo effect

[atomicpuppet]

awesome modifications!

I haven't played the keyboard in such a long time, and I just so happen to find a PSS-130 today in a thrift store for 7$!

Gave it a clean up, found an AC adapter, works wonderful!

Great keyboard for beginners.

[AMOKIAN]

Oh, I already commented a yer ago....ooops

great 8bit synth from that pss

[AMOKIAN]

1:22 was a sick tone WOW!!!!

cool keyboard......

[anthony62490]

Sick bends. I have the exact model lying around here somewhere. I don't suppose you kept track of the bends, did you?

Wait, no. I read one of your older comments. Is there any chance you could take a picture of the circuitry so we could take a decent guess at what you did?

[chazum0]

same here, the board is very small, theres not much to bend . a friend gave me this same one, i couldn't find anything

[ourigin]

This is great.

I picked one of these up the other day and after testing all the contacts on the circuit board all I could get it to do was make a sustained bass tone.

What methods do you use when trying to find interesting bends? Am I missing something? Are you adding components apart from pots and switches? Advice would be much appreciated.