parts for the buzzfix
Hello, I'm searching for the parts for the buzz-fix so I could do it myself. I only find it quite difficult to difficult to find the needed components: 2K2 0402 smd resistor and a small ceramic 100µF smd cap. On farnell you have to be a company and digikey charges 18 Euro transport costs :O. The local electronic shop doesn't have any of this components. Is there anyone on this list who can send a cap and some resistors to somewhere near Leuven, Belgium in an envelope for a reasonable price? Depeje ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: parts for the buzzfix
Hi Depeje, list! On 09.06.2010 14:49 Peter Nijs wrote: I'm searching for the parts for the buzz-fix so I could do it myself. For the #1024 fix I used the parts from an old hard-drive (by try and error), it works well (deep-sleep is ok now). Klaus ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: parts for the buzzfix
Peter Nijs moko...@depeje.net writes: find it quite difficult to difficult to find the needed components: 2K2 0402 smd resistor and a small ceramic 100µF smd cap. It'd be a bit too long for me to send you the parts but i can suggest using 0603 R (it fits there all right because one side of it should be connected to the ground plane anyway.) and a tantalum capacitor, those are much easier to source. HTH -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:fercer...@gmail.com ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: parts for the buzzfix
Paul Fertser fercer...@gmail.com writes: Peter Nijs moko...@depeje.net writes: find it quite difficult to difficult to find the needed components: 2K2 0402 smd resistor and a small ceramic 100µF smd cap. It'd be a bit too long for me to send you the parts but i can suggest using 0603 R (it fits there all right because one side of it should be connected to the ground plane anyway.) and a tantalum capacitor, those are much easier to source. The 100uF tantalum capacitors of type C are usable for both buzzfix and bassfix. -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:fercer...@gmail.com ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: parts for the buzzfix
Le 09/06/2010 15:16, Klaus Fuerth a écrit : Hi Depeje, list! On 09.06.2010 14:49 Peter Nijs wrote: I'm searching for the parts for the buzz-fix so I could do it myself. For the #1024 fix I used the parts from an old hard-drive (by try and error), it works well (deep-sleep is ok now). Klaus ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community Mine all come from unused Network Cards... There are a lot of caps on it, easy to unsolder. I've found some resistors too... -- Thomas HOCEDEZ ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: parts for the buzzfix
On Wednesday 09 June 2010 15:20:51 Paul Fertser wrote: Peter Nijs moko...@depeje.net writes: find it quite difficult to difficult to find the needed components: 2K2 0402 smd resistor and a small ceramic 100µF smd cap. It'd be a bit too long for me to send you the parts but i can suggest using 0603 R (it fits there all right because one side of it should be connected to the ground plane anyway.) and a tantalum capacitor, those are much easier to source. HTH Thanks for the tips. I already found them on rs-components (and I have contacts who can order there). But aren't tantalum cap's polarised? Or is the mic signal DC? Or is there another reason why this isn't a problem? My coursebook states that they can withstand voltage reversal. I interpreted this line as: they're not designed for it, but if you do it once by accident, they won't break. Peter ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: parts for the buzzfix
Peter Nijs moko...@depeje.net writes: Thanks for the tips. I already found them on rs-components (and I have contacts who can order there). But aren't tantalum cap's polarised? Or is the mic signal DC? Or is there another reason why this isn't a problem? They're indeed polarised and it's not a problem given the way they are connected. You connect - to the GND, and + to one of the mic's terminals, thus creating a filter that stabilises the voltage on that terminal. The other terminal is used to get the actual signal. -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:fercer...@gmail.com ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: parts for the buzzfix
On Wednesday 09 June 2010, Peter Nijs wrote: On Wednesday 09 June 2010 15:20:51 Paul Fertser wrote: Peter Nijs moko...@depeje.net writes: find it quite difficult to difficult to find the needed components: 2K2 0402 smd resistor and a small ceramic 100µF smd cap. It'd be a bit too long for me to send you the parts but i can suggest using 0603 R (it fits there all right because one side of it should be connected to the ground plane anyway.) and a tantalum capacitor, those are much easier to source. HTH Thanks for the tips. I already found them on rs-components (and I have contacts who can order there). But aren't tantalum cap's polarised? Or is the mic signal DC? Or is there another reason why this isn't a problem? The cap is smoothing the mic bias supply, and polarised caps are regularly used for this purpose. You just have to make sure you put them the right way round ;-) In this case the mic bias is +ve. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: parts for the buzzfix
Am Mittwoch, den 09.06.2010, 14:49 +0200 schrieb Peter Nijs: Is there anyone on this list who can send a cap and some resistors to somewhere near Leuven, Belgium in an envelope for a reasonable price? I should have some of the resistors left at home I'd send you just for the postage from Germany to Belgium. Tell me if you still want me to send those to you and I'll have a look. Cheers Jan signature.asc Description: Dies ist ein digital signierter Nachrichtenteil ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: parts for the buzzfix
On Wednesday 09 June 2010 18:23:16 Jan Girlich wrote: Am Mittwoch, den 09.06.2010, 14:49 +0200 schrieb Peter Nijs: Is there anyone on this list who can send a cap and some resistors to somewhere near Leuven, Belgium in an envelope for a reasonable price? I should have some of the resistors left at home I'd send you just for the postage from Germany to Belgium. Tell me if you still want me to send those to you and I'll have a look. Cheers Jan Thank you all for the tips and the offers. Unfortunately I don't have the time to search for the specific cap, nor do I have unused ethernet cards. So I ordered a tantalum cap together with the resistors, who are practically free, with a friend who can combine this order with a much bigger order. I'll keep the tips of the network cards and harddrives in mind for the 1024 fix and the bass rework which are of less importance right now. I'll do that in a couple of months when I have more time. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
