orange_hand

Hi, danke schon mal für das schnelle Feedback. 1K zu 220 Ohm ist ja schon ein gewaltiger Unterschied. Ich würde das gerne berechnen: RV = (Uges - UF) / IF wobei: RV = Vorwiderstand Uges = Gesamtspannung UF = Durchlassspannung IF = Durchlassstrom Ich gehe mal davon aus das IF = 10mA ist. Ich werde aus dem Datasheet nicht so recht schlau, da fehlt mir einfach die Kenntnis. Vielleicht kann mir jemand sagen was ich als Uges, UF annehmen muss ? Ich hänge mal das Datasheet als PDF dran. Wäre toll wenn mir jemand sagen könnte welche Angaben ich annehmen muss. Danke & Grüße orange

Hi, ich bin gerade dabei das MB6582 Base PCB zu bestücken und habe folgende Frage. Auf dem Base PCB sind 220 Ohm Widerstände (R40 bis R55) als Vorwiderstände für die LED's vorgesehen. Ich wollte mir die folgenden Flat Top LED's auf dem CS Board verbauen: http://www.reichelt.de/LEDs-Sonderformen/V-320/index.html?;ACTION=3;LA=2;ARTICLE=22208;GROUPID=3023;SID=25gLacoawQARkAACfNJzoa98287c018bb62c4f0e328e8b2424f6b Reichen die 220 Ohm Widerstände aus für diese LED's ? Danke & Grüße orange

Hi, I've got the same error message with the MB6582 editor under windows vista. I used MIDI-OX with a very low buffer rate, which worked well. I think it has to do with the buffer size, as the transfer works well in the first second and then breaks down.... I haven't tried to figure out if there is a setup for the buffer size in the MB6582 patch editor. Maybe worth to check this ... Cheers orange

Completed sammichSID up and running :-) Greetz orange

Final Assembly

Front Panel Mask Removal Firmware Upload First Test

Final Base PCB Paint Job Rear Panel Final Rear Panel Paint Job Front Panel

Check and Align Rear Panel Late Stage Base PCB

Early Stage Control Surface PCB Details Control Surface:

Hi Guys, I have now completed my first DIY synthesizer project, the sammichSID. I read the build guide four times and soldered once ;-) with the result that the sammichSID worked straight away. I placed two 8550R5 SID's into the sammichSID which sound excellent. I would like to thank Jason, Thorsten, Nils and all the others who made this project possible. Especially Wilba's build guide was excellent, made it so easy.... For me it was a kind of "warm up" project, as I have to build the MB6582 within the next couple of weeks. I had some problems with the soldering and the paint job, that I will hopefully improve the next time with the sammichFM. Please find attached some pictures which should give you a better impression. Final sammichSID Preparation / Tools Early Stage Base PCB

Hi Guys, yesterday I got my final stuff (PSU, Heat Sink Compound, 8 Pin Socket) and did the final voltage check. The 5 and 9 Volt check points were all ok. On the 12 Volt checkpoint I measured 10,78 Volt, which is on the lower end of what is required, but as I have installed 8580 SID's it doesn't matter anyway. I was so motivated that I also uploaded the firmware, installed the memory ic's and finally managed to upload the default patches. After that I did a brief sound check, which was also amazing. So I would like to thank Wilba for the excellent build guide, which helped me a lot to complete this little but powerful synth. All I have to do now is to paint the front panel. I have already completed the rear panel, but to be honest the result is not as good as I wished it was :-( But with this experience I believe to do the front panel better :-) Pictures will follow as soon as I have completed my work.... Cheers orange

Hi, so far I have read the build guide three or even four times and soldered once, so far :-). I hope that everything will be fine.. To be continued.. Cheers orange

Thanks Wilba ! Cheers orange

Hi, I have now ordered the following one, as it was mentioned to be non conductive and I wanted to order from one source (together with some other stuff)... non conductive heat sink compound Thanks for the answers indeed. Cheers orange

Hi Guys, I have almost finished soldering the PCB's of the sammichSID and I will shortly perform the voltage testing. I have got the following questions regarding the power supply. a) I have planned to use a 12V regulated power supply and I wonder how the polarity has to be ? Is the center positive or negative ? b) I will use 8580er SID's and I suppose that the 12 V power adapter is ok, isn't it ? I assume that the 12 V are broken down on the voltage regulator and if the jumper is set to the default position, it should work, shouldn't it ? c) Is the following power adaptor sufficient with the 500mA (Power Adaptor 12V / 500mA) or better this one with 1,7 A with 12 V (12 V / 1,7 A)? I appreciate your answers ! Cheers orange

Hi guys, I am about to install the two power regulators on the sammichSID base pcb. I was looking for some non conductive heat sink compound as described in the build guide. I have found the following product at maplin (UK): http://www.maplin.co.uk/high-thermal-conductivity-heatsink-compound-33695 Is this the right one ? There is no explicit mention that it is non conductive... Your help is much appreciated ! Cheers Matt

Thanks Wilba, I think I will order the one you bought as well. That makes sense to me :-) Cheers Matt

Hi, I try to get all the parts of the control surface for the MB6582 together. I have got the PCB's from SmashTV. Initially I was looking for the same red display used by Wilba but I can't find it. I found the following ones: http://cgi.ebay.de/LCD-Display-HD44780-4x20-chr-20x4-BLUE-neg-Backlight-/160527475580?pt=Bauteile&hash=item25602ee37c http://cgi.ebay.de/LCD-Display-HD44780-4x20-chr-20x4-Green-neg-Backlight-/170440870233?pt=Bauteile&hash=item27af114959 http://cgi.ebay.de/LCD-Display-HD44780-4x20-chr-20x4-Yellow-neg-Backlight-/170459060245?pt=Bauteile&hash=item27b026d815 http://cgi.ebay.de/LCD-Display-HD44780-4x20-chr-20x4-Black-NEG-Backlight-/170440872374?pt=Bauteile&hash=item27af1151b6 Will these work in the MB6502 ? I wanted to make sure not to buy the wrong one.. Your help is much appreciated. Cheers Matt

Hey Reboot, I received my windows today. Thank you very much for your effort and support ! Thanks orange

Hehe, I can say that it was a close fight, but unfortunately I didn't win :-) And actually I thought that is is a little bit strange that this item wasn't mentioned here before ... for a good reason I think, but it hasn't helped. Cheers Matt

Hey Phil, thanks for the clarification. I will then start with my 6581 chips :-) Cheers Matt

Hi Phil, yes, true but the PCB's are made for the 9V chips and actually I would have enough 6581 chips.... But I want at least 8580 chips... Cheers Matt

Thanks Nils !

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