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Yeah I guess so. My soldering skills could stretch to replacing a few capacitors but I’m not exactly sure how to decide which. I use a multimeter to find ones near the CEM 3374 that don’t hold

Depending on age of the Xpander, recap PSU and electrolytic caps on voiceboard,- at least for that "voice #1" and when swapping OSC chips made no difference. It can be there are other reasons, but

Sag from an electrolytic going out on that voice? James

Hi, My Xpander reliably passes all tuning functions but voice 1 goes out of tune (flat) within a few minutes afterwards while the rest stay in tune. I've tried swapping voice chips but don't know

Not sure what you could do but if you know which voices are playing up you could try the following. find a good and a bad voice. 1. turn the rest off so you only have a 2 voice poly.. 2. then swap the

No, definitely not panning related (all are in middle).

Could it simply be the panning? did you try putting all voices in the centre? ________________________________ Sent: 28 August 2018 8:35 PM To: xpantastic@... Subject: [xpantastic]

Hi all, curious if anyone has come across an issue where individual voice volumes on their xpander/M-12 are not the same? On my M-12, I have one voice in particular that is about 1dB quieter than the

I have a Matrix 12 and it's in great shape, but while idle, or while playing, it randomly outputs a little click. It's very random. Sometimes every 5 minutes, sometimes not for hours. I've replaced

Hi, I have recently noticed that VCO2 on voice 9 on my Matrix 12 has developed a problem where the pitch is always the same regardless of the note played. The problem is not apparent on VCO1 which

Hi, FYI, 6 years ago a guy called Christophe Janot posted some messages in the Xpantastic forum about this. I did had some exchanges with him outside Xpantastic. He was building a kind of clone of

Hitachi makes a pin and instruction compatible CPU (6309), I don’t know if they make the B variant though. This CPU can run up to 4 MHZ, where’s the 6809 maxes out at 1.89 or so. There are

>>> Am 14.06.2018 um 18:03 schrieb Karl Schmeer shire03@... [xpantastic]: I got it,- thx ! I doubt theres a "o" / "0" problem when using your original email or when replying on your mails,

>>> Am 15.06.2018 um 00:20 schrieb min struct min.struct@... [xpantastic]: When speeding up CPU frequency by the facor of 4,- in a synthwhere lots of modulators are realized in software,

Hello, Would this work bring any chance to be able to replace the 6809 CPU with an upgraded reference ? What would happen if the CPU frequency would be 4 times the original one ? Would it be possible

Exactly. Of course, if people are happy for board mods, there's a chunk of address space which is just being mirrored for the dealing with output (ie, the last 4k iirc which actually just has

That's too bad. Like I said I had not fully investigated it.? ????????????????? #yiv1838644138 #yiv1838644138 -- #yiv1838644138ygrp-mkp {border:1px solid

Karl, some HP test equipment. there are 4 8K ROMS, and 3 8K RAMS on the processor board, two ROMS and two RAMS on the voice board. The 6809 only has a 64K address space. 56K of address space is

PeWe Wrote: Hi PeWe,This is what I am talking about.?? Permanently assigning some parameters to midi CC's??like many current synths are capable of doing. Yes it would take a considerable amount of

FYI- thanks everyone for replying. I think some of you may have gotten the wrong idea about my post. I’m not planning on adding any features, nor extensively document the hopefully-forthcoming