One FastOn tab GND terminal on VSSA PCB, yes, it is a small module. 😎
Simply crimp two wires to the same FastOn connector, one wire goes to PSU GND and another to -OUT speaker terminal. Voila. 😉
2200 uF/6,3 V has to be all that, many would show the same VSSA measurements performance, but at the end selection goes to the one sounding better (personal taste selection). Speaking subjectively, recommendation goes to Nichicon FG (magic vocals).
Give enough cooling to VSSA modules, don't just close the heatsinks without proper air circulation. Use silent low RPM fans if necessary. 😉
Last 54 ALFs out of 200 already received up to now, packed in VSSA PCB sets, will go to travel the world this Friday. 😉
Finally, last 40 VSSA PCB sets ordered (10-14 GB members) will have to wait for me to receive the remaining 100 ALFs. I have back order in Semelab for these 100 pieces, waiting to be delivered in June.
That is the current situation about VSSA GB. 🙂
Finally, last 40 VSSA PCB sets ordered (10-14 GB members) will have to wait for me to receive the remaining 100 ALFs. I have back order in Semelab for these 100 pieces, waiting to be delivered in June.
That is the current situation about VSSA GB. 🙂
Andrej, do you sent a notification when the kit has been shipped?
Just to know, i'm not in a hurry as i'm working on some other projects right now.
Just to know, i'm not in a hurry as i'm working on some other projects right now.
... recommendation goes to Nichicon FG (magic vocals).
Hi
did you try in this place Nichicon KW(M) 2200u/16V?
I have tried KW on DC rails and seems OK. On FB cap location I tried FM, FC and FG. More feedback follows when GB members will compare at least two of each different types, than we'll have more clearer picture about this cap selection. 🙂
Not simultaneously. Over the weekend I'll publish forum names to whom packages were already sent. It is simply too much work to send mail notification with tracking number to each GB member. The ones from the list noted as not received yet will be investigated detaily.
Hello Andrej,
Ι want to build VSSA "by the book", but I have difficalties to find Nichicon FG's.Can you suggest a convenient source?
Ι want to build VSSA "by the book", but I have difficalties to find Nichicon FG's.Can you suggest a convenient source?
Try this, go to gr.mouser.com, and enter the p/n on the right side below, or just do a search on Mouser for your preferred type of cap:
Mouser Part #: 647-UFG1H102MHM
Mouser Part #: 647-UFG0J222MHM
Hi Joachim
KSA/KSC maybe?
All hole diameters are large enough to install pin leads with reserve. Maybe one hole was poured with tin solder while in the SMD soldering process. Please check. 😉
The KSA/KSC fit fine. No, it is the output transistor and it seems that not only one hole makes the problem. I can even not insert with some force.
The holes are drilled to pins dimension plus reserve. Or is it one poured with tin or not properly bent pins leads. They should be perpendecular to PCB and bent according to installation manual fig.1
The plating may have been made too thick at the fab house, and some of the flat-ish shape leads can be at the upper limit of the spec. A caliper will tell you that, and it might help other people to know what to expect.
I had that issue with 3-4 of my through-hole version VSSA boards with some of the leads (and also an unrelated lot of pcb's) On the plus side, my boards are now made on an environmentally friendly "green" production line... whatever that means 🙄
Only solution is to make holes over-size, but who wants parts that practically fall out... 😡 Or run a very small drill (Dremel in my case) through the hole. If the hole was made the correct size b/f plating, the small drill bit will center itself, then you are only removing a tiny amount of material, and the hole will stay plated.
Yes, it can happen in less than 1% of PCBs because there is SMD cap between gates and solder paste can pour a hole in the melting process, even if there is silk print line present preventing this to happen. You're the lucky one to got just that kind of PCB case. Sorry. 