The Thomas Henry Mega Percussive Synthesizer

[NoizeToyz]

Hey Jim,
Thanks for your answer; yes I also thought it might be the noise source modulating it so I actually disconnected the shell modulation switch to see if that helped, but alas not.

I took a direct audio feed from the shell output jumper (J16 / 2) and it is the same sound...

I'll check the power going to the ICs to make sure that's all good...

Ed

*Edit*

I found that other people have had the same problems and it seems like it's down to a dodgy batch of XR2206 chips with batch numbers F0919. These don't seem to work on anything above around 11v strangely.

I swapped them for some other ones and all is working perfectly. The batch numbers which work for me are;
0519 & F0630

[o-live]

hello


where i can found the pcb for the MPS please ,i don't see it on the web

thank you

[elmegil]

Someone else mentioned it: top of this site, "store" "DIY Components".

http://electro-music.com/catalog/forums.html/cPath/54

[o-live]

thank you sams as teh other topic where i have posted my question
i have see the store of electro music , but this pcb is not available from long time ,i search an other site for purchase it ,or other method for make the pcb

good day

[elmegil]

I don't understand what you're talking about, I bought one from here just last month. If they were out of stock, they wouldn't have it in the store.

[o-live]

sorry for misunderstanding , i have look sometimes in this last month and always (not available) ,hope new batch come soon

[elmegil]

This is a current snapshot as of RIGHT NOW.

It says "NOW back in stock".

Are you perhaps misunderstanding and thinking that it says "NOT back in stock" ??

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[o-live]

i'm not very good in english ,i have the understand the inverse


thank's for your help

[elmegil]

I'm glad you can get the board

[o-live]

Thank you too

do you have make this project ?

[elmegil]

No, it's buried pretty far back in my backlog. As of this moment I'm not even sure where I will be able to house it, my hand made modular really doesn't have room. I just know I need some percussion and I like Thomas Henry's designs a lot, and I wanted to support EM as well.

[sduck]

Finally got around to building this.





Works perfectly, sounds great!

[Uncle Krunkus]

Beautiful build sduck.

[mosc]

[synthcube]

ditto. the colors really brighten that up.
Its on my backlog list too. Which keeps growing

[MuBase]

Hi all. Are the MPS PCBs still available??
I have read the inforrmation and am becoming very enamoured by the possibilities! I love the idea that it can be used as a percussive instrument or a synthesizer in its own right..
I have an SN voice which I have built in a small ex-coco serial box as seen here: http://www.youtube.com/watch?v=eABfF8u4XkI

I think the Thomas Henry coupled with my SN voice would make a very nice team.
....
I'd build something similar to the Sn Voice LUX in the video with a baby 8 sequencer but with the MPS as the main engine...

[sduck]

Click the "store" link at the top left of this page

[elmegil]

I can't compete with sduck for beautiful builds, but I like it nonetheless

[NoizeToyz]

Some lovely looking designs everyone. Here's a pic of my MPS that I put into Moog format. Designed in Adobe Illustrator, and made by Ben at Re:Synthesis .http://www.bigbluewave.co.uk/resynthesis/resynthesis_home.htm

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[NoizeToyz]

Here's a little demo of my MPS - hopefully useful to others to compare sounds and operation between DIY builds.
http://www.youtube.com/watch?v=EIe4X6c2G4E