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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
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 Posted: Sun Mar 29, 2009 7:59 am Post subject:
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| mono-poly wrote: | | TekniK wrote: | | my 45 pcb's are in,thanks Matt! |
45????  |
almost 
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matthias
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Sun Mar 29, 2009 1:37 pm Post subject:
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does anybody already have a BOM for mouser.com? ti would be nice to have it available here, i think.
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matthias
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Junk Rhythm
Joined: Jan 07, 2008
Posts: 81
Location: San Francisco, CA
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| Posted: Sun Mar 29, 2009 2:41 pm Post subject:
C19 & C20 Missing in the BOM |
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| I came across an error in the documentation I think. In the capacitor section of the P3100 BOM C19 and C20 are not listed. |
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State Machine
Janitor
Joined: Apr 17, 2006
Posts: 2810
Location: New York
Audio files: 24
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| Posted: Sun Mar 29, 2009 6:00 pm Post subject:
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Mono -- you caught that to ... I thought the same ... Wow
Bill |
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LektroiD
Joined: Aug 23, 2008
Posts: 1019
Location: Scottish Borders
Audio files: 2
G2 patch files: 2
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| Posted: Sun Mar 29, 2009 7:14 pm Post subject:
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| State Machine wrote: |
Mono -- you caught that to ... I thought the same ... Wow
Bill |
That would make a whole large scale modular with only one module?!?!?! Either that, or someone is making a trade out of panners & resonators!
There is a vinyl site I also visit where they do short runs (100-250 copies) of rare vinyl represses, they capped the quantities down to 2 per person, as someone was buying bulk loads in at £5-6 each and selling these rare gems at £50-60+ per unit. Meanwhile the genuine guys who just wanted a single copy for their collections were missing out.
Maybe there should be a similar exercise here on popular boards, so all the genuine guys don't miss out. No offence to the guy who bought the 45 boards, but realistically, I cannot see these all going into one modular for personal use (correct me if I'm wrong).
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LektroiD |
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ach_gott
Joined: Sep 09, 2008
Posts: 79
Location: Chicago
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| Posted: Sun Mar 29, 2009 7:29 pm Post subject:
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| LektroiD wrote: | | Maybe there should be a similar exercise here on popular boards, so all the genuine guys don't miss out. No offence to the guy who bought the 45 boards, but realistically, I cannot see these all going into one modular for personal use (correct me if I'm wrong). |
Surely that should be up to Matthias and it can't have escaped his notice that he was going to have to pack a big box. Unlike vinyl, with a large initial setup cost, he can have more PCBs made if demand explodes. So it's unlikely there will be a collectors market in one particular module. Arbitrary limits of that nature are likely to have unforeseen side effects. |
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Sun Mar 29, 2009 11:11 pm Post subject:
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first of all: the "45" has been a joke. i am sorry for any confusion about this. 
then, if someone realy wanted to buy 45 PCBs, i would be fine with that. this is the reason why i ask for advance-orders. and as soon as i sold the PCBs everyone is free to do with them what he wants to (trading them, or building complete modules and selling them, or whatever....).
@g.p.macklin. thanks for heads up. i just corrected the first line of the BOM: it should read C18-C21 (instead of C18, C21).
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matthias
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Tue Mar 31, 2009 12:10 am Post subject:
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thanks you all for all the kind PMs i received lately. there have been quite a lot and i was not able to answer them all. so i answered only PMs with questions. nevertheless all your PMs have been appreciated.
i just wanted to let you know that no offense was meant, if you didn't receive an answer.
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matthias
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Funky40
Joined: Sep 24, 2005
Posts: 875
Location: Swiss
Audio files: 1
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| Posted: Wed Apr 01, 2009 10:47 am Post subject:
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Hello Matthias,
i built a X-Panner as a single module, having an Issue:
The Right Input is just panning between right and middle.
I doublechecked/ compared all related Resistors ( around Q7-11 ) , there is no faulty Value visible to me.
Transistors are sitting the right way.
1.) do you have an idea where the behave could come from ?
2.) which are the relevant parts exactly ? |
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Wed Apr 01, 2009 2:09 pm Post subject:
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| Funky40 wrote: | i built a X-Panner as a single module, having an Issue:
The Right Input is just panning between right and middle.
I doublechecked/ compared all related Resistors ( around Q7-11 ) , there is no faulty Value visible to me.
Transistors are sitting the right way.
1.) do you have an idea where the behave could come from ?
2.) which are the relevant parts exactly ? |
so the panner is actually working!? Left input works as it should? is the control voltage you use bipolar (centered around GND)? what if using only the manual pan knob with no external CV source connected?
if the right input is working as it should, that would mean that there is at least no issue with the actual control voltages (IC2A/B, R53-R58).
what baffles me is the fact (assumed i understood you correct), that both VCAs for the right input won't work correctly.
if you say right to middle, does that mean that Left out is off in the beginning and then it gets louder, whereas the Right output gets lower but not off?
"middle" would mean that there is a signal on the Left output, but to low.
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matthias
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Funky40
Joined: Sep 24, 2005
Posts: 875
Location: Swiss
Audio files: 1
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| Posted: Thu Apr 02, 2009 5:01 am Post subject:
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| fonik wrote: | | so the panner is actually working!? |
Yes.
| fonik wrote: | 1. Left input works as it should?
2. is the control voltage you use bipolar (centered around GND)? what if using only
3. the manual pan knob with no external CV source connected?
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1, 2, 3: yes.
( i use mahkato VCF ) manual behave is the same
| fonik wrote: |
if you say right to middle, does that mean that Left out is off in the beginning and then it gets louder, whereas the Right output gets lower but not off?
"middle" would mean that there is a signal on the Left output, but to low. |
it starts with right output and goes to where both outputs have the same level.
( while the left output makes a fade from left over middle/both to right. )
so it looks as i would have too little CV modulationamount for the right input, doesn't it ?
i checked the resistors optically by comparing with others on the board.
I found no fault.
i must admit that i wired the manual pot wrong ----> getting sparkling and smoke when turning full CCW. smoke only once, hehe.
I changed this Pot and i changed the TL074 next to it ( circuitwise ) |
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Thu Apr 02, 2009 12:17 pm Post subject:
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| Funky40 wrote: | it starts with right output and goes to where both outputs have the same level.
( while the left output makes a fade from left over middle/both to right. )
so it looks as i would have too little CV modulationamount for the right input, doesn't it ? |
this is what i think, too. but that would mean both VCAs associated with the right channel are not working correctly, since the LEFT input gets processed without issues - and all the VCAs are fed by the same inverted/not inverted summed CVs.
if the manual control pot and/or the CV mixer would not work correctly, it would influence the LEFT channel as well.
so i am still baffled and confused.
i would suggest to check the resistor values of both VCAs again. in the past i found it hard to distinguish i.e. 100k and 10k sometimes, depending on manufacturer.
then check IC1: are all pins in the sockets? no leg bended under the IC?
i hopefully will have some time tomorrow to measure some voltages at my board for cross-checking.
other ideas, anyone?
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matthias
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Funky40
Joined: Sep 24, 2005
Posts: 875
Location: Swiss
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| Posted: Fri Apr 03, 2009 4:01 am Post subject:
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| fonik wrote: |
so i am still baffled and confused.
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my first thought was also that this is a funny Issue.
i have indeed one resitor which is not clear if it is 100K.
But i colored the printout and checked so i think all must be good.
One was in the wrong place, but such things i see wehn placing the other values.
desoldering was hard, finally i got not both wholes free ......
it took 15 minutes for that one Resistor to change while i had another 60 minutes for the whole PCB
IC i had also 1 leg bended, later when i replaced it beacuse of wrong pot wiring, i got again the same leg beded.
----> the socket was bad at that pin ( drilled precision sockets, but from reichelt )
but looks all good now
| Quote: | | this is what i think, too. |
it would be good to now which parts are the ones that are related to the CV amount
| Quote: | | hopefully will have some time tomorrow to measure some voltages at my board for cross-checking. |
ohh, that would be very nice |
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
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| Posted: Fri Apr 03, 2009 6:16 am Post subject:
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| Funky40 wrote: | i have indeed one resitor which is not clear if it is 100K.
But i colored the printout and checked so i think all must be good. |
just compare your measurements to the both VCAs of the LEFT channel.
| Quote: | One was in the wrong place, but such things i see wehn placing the other values.
desoldering was hard, finally i got not both wholes free ......
it took 15 minutes for that one Resistor to change while i had another 60 minutes for the whole PCB |
i know about that. i don't care about the solder in the holes. i just heat it and push the new part into the hole. most of the time i even don't need new solder/flux.
| Quote: | IC i had also 1 leg bended, later when i replaced it beacuse of wrong pot wiring, i got again the same leg beded.
----> the socket was bad at that pin ( drilled precision sockets, but from reichelt )
but looks all good now |
what do you mean by all looks good now? all legs look good but same problem? or does it work now?
| Quote: | | it would be good to now which parts are the ones that are related to the CV amount |
the CV amount of the articular VCAs could be controlled by the ratio of i.e. R9/R7 (voltage divider). i would not change it for now (assumed the problem still exists). it could be another problem (offset caused by wrong resistor values of R33/R44).
the overall impact should be controlled by changing the values of the input resistors R53-R55.
| Quote: | | Quote: | | hopefully will have some time tomorrow to measure some voltages at my board for cross-checking. |
ohh, that would be very nice |
i will see.
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matthias
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Funky40
Joined: Sep 24, 2005
Posts: 875
Location: Swiss
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| Posted: Fri Apr 03, 2009 3:30 pm Post subject:
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i will check again at the weekend
| Quote: | | i don't care about the solder in the holes. i just heat it and push the new part into the hole |
yeah, but i was in this case not able to push it thru
thanks Matthias, very appreciated ! |
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Spratty
Joined: Oct 08, 2007
Posts: 43
Location: Australia
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| Posted: Mon Apr 06, 2009 5:19 am Post subject:
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Hi Fonik / Everyone.
I can't seem to get BC560C PNP's anymore, would 2N5087 be ok in this circuit?
(Turn around)
BC560 = CBE
2N5087 = EBC
I believe they are similar devices...low noise high gain etc...
Spratty |
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Mon Apr 06, 2009 12:15 pm Post subject:
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even BC557 (same pinout) or 2n3906 would work.
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matthias
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prophei
Joined: Jan 27, 2007
Posts: 234
Location: san francisco, ca
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| Posted: Tue Apr 07, 2009 2:57 am Post subject:
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Are there any of these left? 
I haven't been around in a while, and think I missed out again! |
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
Audio files: 23
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| Posted: Tue Apr 07, 2009 4:43 am Post subject:
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there are still some left. just PM how many of each you would need.
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matthias
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slo
Joined: Feb 18, 2007
Posts: 204
Location: Victoria, BC
Audio files: 1
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| Posted: Tue Apr 07, 2009 7:05 am Post subject:
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Pcb's arrived in Canada, lovely looking too.
Thanks |
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wmonk
Joined: Sep 15, 2008
Posts: 529
Location: Enschede, the Netherlands
Audio files: 15
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| Posted: Tue Apr 07, 2009 8:09 am Post subject:
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| PCBs arrived more then a week ago here. Like the colours! |
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Luka
Joined: Jun 29, 2007
Posts: 1003
Location: Melb.
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whomper
Joined: Dec 15, 2007
Posts: 201
Location: Israel
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| Posted: Tue Apr 21, 2009 10:46 am Post subject:
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I have in my local stash only BC550B/BC560B and not BC550C/BC560C as mentioned.
Would the 'B' be ok still?
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Erez Yaary
Home Page: http://www.yaary.com
Buy my CDs at http://www.mellowjet.de |
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fonik
Joined: Jun 07, 2006
Posts: 3950
Location: Germany
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| Posted: Tue Apr 21, 2009 11:50 am Post subject:
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sure. you could even use 2n390x (be aware of different pinout).
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matthias
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goiks
Joined: Oct 17, 2008
Posts: 35
Location: bishop, ca
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| Posted: Tue Apr 21, 2009 4:57 pm Post subject:
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hi fonik- i searched your website and here for a fpd file for the faceplate (i really like it), and haven't found it. are you sharing?
thanks, matthew |
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