Free PCBs
Yes am giving away 50 free PCBs right away
, check them out here http://www.diyaudio.com/forums/vendors-bazaar/227813-50-free-symef-pcbs.html#post3325792
Yes am giving away 50 free PCBs right away
, check them out here http://www.diyaudio.com/forums/vendors-bazaar/227813-50-free-symef-pcbs.html#post3325792
Alrighty then...
Could not find BOM for the new PCB that just arrived. They say type 2 on them and although there is a section for them on the website, there is nothing in the BOM part. I took the BOM from the Type 1 section and converted it to the Type 2 board. All of the part numbers now match the part numbers as listed on the PCB.
So, are the parts the same for both BOMs if their values match? There are two parts missing, C8 a 220uf that looks to be electrolytic and R32 a 7.5, I would assume R. Would someone care to specify those parts? If all this is correct I would be happy to share.
Could not find BOM for the new PCB that just arrived. They say type 2 on them and although there is a section for them on the website, there is nothing in the BOM part. I took the BOM from the Type 1 section and converted it to the Type 2 board. All of the part numbers now match the part numbers as listed on the PCB.
So, are the parts the same for both BOMs if their values match? There are two parts missing, C8 a 220uf that looks to be electrolytic and R32 a 7.5, I would assume R. Would someone care to specify those parts? If all this is correct I would be happy to share.
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I got my PCB's!
They are really nice!
Would it be problematic if I'd use a 44VAC transformer (so around 60VDC) in the power supply?
Thank you. +/- 60 VDC is too high, safely +/- 40 VDC
, max +/- 50 VDC
Nice going Billy, you can try two PSU s
1. The one on the site
2. http://www.diyaudio.com/forums/power-supplies/216409-power-supply-resevoir-size-169.html#post3309702 (Thats if you like to experiment
)
All right, thanks, I don't want to blow up my nice new amplifier.Thank you. +/- 60 VDC is too high, safely +/- 40 VDC
First question (I'm afraid a lot more will follow
Can't seem to find a reason for the symef rev 2 board so can only assume it's there because it has a smaller footprint? (cheaper to manufacture dare I say?) Or is there more to it then that?
Diy audio is all about fun and experimentation. Yes the type 2 has a smaller foot print. Am hoping that the experimentation of ideas will result in some good feedback from you the assemblers and reviewers.
C8 on Type2 is C1 on Type1, which is rated 6,3V, so anything that is 6,3V or higher will do fine.
No, C10 is rated 10V, so, just to be on the safe side, I'd use (at least) 10V on all three caps.