Well, the diyaudio store is out of power supply boards for my F5 build. An ebay search led me to this...Jim's audio power supply board.
Seems like it's good quality...but I don't see any snubber capacitors? Big deal, yes or no? Also, the pads marked "HL"? Thermistor? lastly, the 2k2 resistors...I assume those are bleeders?
Man, all I need is a case (out of stock) and a PS board (out of stock) from the diyudio store and I could finish up my F5. Should I wait or should I risk using this PS PCB?
Lastly, I emailed Jim's audio. They "claim" to have Fairchild FQA19N20/FQA12P20 mosfets. I bought a pair of each. They are on thier way from Hong Kong now. I have no idea if they are fakes or not. Any ideas how to tell?
Seems like it's good quality...but I don't see any snubber capacitors? Big deal, yes or no? Also, the pads marked "HL"? Thermistor? lastly, the 2k2 resistors...I assume those are bleeders?
Man, all I need is a case (out of stock) and a PS board (out of stock) from the diyudio store and I could finish up my F5. Should I wait or should I risk using this PS PCB?
Lastly, I emailed Jim's audio. They "claim" to have Fairchild FQA19N20/FQA12P20 mosfets. I bought a pair of each. They are on thier way from Hong Kong now. I have no idea if they are fakes or not. Any ideas how to tell?
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I am sorry but I read "FTRST WATT"Must be good quality ...... says FIRST WATT on it!
Better to be patient and support the good guys.
What us down-under folk would call being a "smart ar5e", he knows what he wants to imply but trying to keep safe legally.
Jim's audio also has this board. Anyone care to comment?
Heavy Duty Power Supply Partial Kit Pass Amplifiers | eBay
Onboard rectifiers. I am not really an expert on rectifiers...are these worse than the block type rectifiers? I would replace the resistors. Also, would a f5 build require two of these boards? I only see one set of secondary in/out.
Audiosan: I looked at chipamp.com but could only find images of a PS board that uses 2 caps....
Heavy Duty Power Supply Partial Kit Pass Amplifiers | eBay
Onboard rectifiers. I am not really an expert on rectifiers...are these worse than the block type rectifiers? I would replace the resistors. Also, would a f5 build require two of these boards? I only see one set of secondary in/out.
Audiosan: I looked at chipamp.com but could only find images of a PS board that uses 2 caps....
go to the ORDERS page and scroll to the bottom listing, you will find the aleph power supply which will work for your F5 also.
I don't know your purpose. But I built descrete rectifier board and each of the dual diode gets fairly warmer with small heatsink. Now I feel diode block without heatsink will get hotter.
Btw I have these boards purchased for some purpose. I did not use it, it looks fairly good quality though.
Yes, 6x33000uf from Apex jr.
So, what is the best place for the resistors/bypass caps? After the first set of caps or after the 2nd?
Zen, your proposing a single ground location instead of my ground 'bus'. Actually I wanted to use a copper plate but couldn't find a suitable plate. Do you think the grounding design I am using will be a problem?
So, what is the best place for the resistors/bypass caps? After the first set of caps or after the 2nd?
Zen, your proposing a single ground location instead of my ground 'bus'. Actually I wanted to use a copper plate but couldn't find a suitable plate. Do you think the grounding design I am using will be a problem?
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