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Hi, I've experienced a miracle. A good friend of mine, Mr. Mikko K?ykk?, has managed to literally resurrect a Matrix-12 that was sold to me a while ago. Every oscillator and filter now works and the

Search for auctions from a seller named ChipsForBrains. He has sold a lot of NOS CEM's. I've bought some from him for spares- but haven't tried them actually.

Hi, ? The voice 2 coupling capacitor is most likely?failing.? This would be part # C249 for voice two. It is a 2.2 uF 50VDC electrolytic capacitor. I would replace this first. As it often causes

Hi, Well you are right. It must be the chip.? I have seen them come up on ebay occasionally. Maybe someone has a spare they can sell you. At least you can turn the voice off for the time being. Do a

Hi I recently used the detune button option on the Xpander all voices where working fine until I did this, now everytime I try to tune it I get a fail on voice 2. It's not completely dead but it's not

Hi Karl Thanks for your answer. Yes I am pretty sure. Voice No. 4 died completely (no sound at all, the tunig fails immediately). I started swapping the chips and that is the one that does not work

Hi, Extreamly rare, are you sure that it is the problem. Have you tried swapping it with another voice? ? Karl

Hi Unfortunately one of these chips died on my Xpander. If somebody has one for sale please let me know. Many thanks.

Thanks Karl, great advice! I definitely need to try swapping chips first-it seems to be a day to day thing where one day the filters really sound out of wack, and then other days (like today) they are

sorry my first post is a FS post, but me and the Matrix did not get along as much as I thought we would. reply off list please. haven1 (at) gmail.com am selling a Matrix-12 for $2700 USD (3 issues

Hi Matt, ? Well, if the filters on two voices are opening up too much that would point to replacing the?filter over the vco chips. (A VCF with a different frequency response?would change your

I have posted in the past about my filter FM not being consistent across all voices-2 voices in particular are always different. Even with FM off, there are still fairly noticeable differences in the

Hi! Anyone has changed the rotary encoders of our Xpander/Matrix12? I would like to buy some new encoders but I'm a bit confused about pulses/sizes/phase shift/etc.... Could we talk about them?

Hi ! Do a search in the group for Takis and Karls posts regarding "autotune failure", starting september 2008. You probably have to replace some caps on the voiceboards now. _One of Karls posts in

Hi there, I wonder what could be a problem with the Matrix 12 when everything else's tuning well - except RES? Filter chips should be okay. It seems to "think" for a while whilst tuning RES on voices

There were actually two auctions recently for NOS 3374s and 3372s...for quite cheap too.. not to rub that in anyone's face, but just to point out that they are out there!

And, quite previously: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=180405182514&ssPageName=STRK:MEWAX:IT#ht_500wt_870

Wow ! Very good information,- many thanks for sharing !!! PeWe mursupeppe schrieb:

My tech fella, Mr. Mikko K?ykk? replied as follows: --- Electrically any 2-bit binary encoder should work. Recommended resolution is 20 - 30 pulses per turn to preserve the original touch of the

Please, check the following pages and feel free to add there new information relateted to Xpander and Matrix-12: http://launch.groups.yahoo.com/group/xpantastic/files/