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Old 14th May 2007, 02:44 AM   #1
alexw88 is offline alexw88  Hong Kong
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I have got emails about the buying the PA150 PCB. I only have a few left. If there are enough interest I may be able to make some more.

Please reply here if you are interested in the PCB. If the total number is > 40 PCBs, the cost would be about $10 per PCB. Shipping would be extra.
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Old 14th May 2007, 07:12 AM   #2
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I will be glad to donate some Vishay/Dale WSR 0.3R 2W 1% resistors to everybody (3x40 PCB I guess) who ordered a pcb. I would like to build a BPA style amp, and this is the most complete pcb I have seen before. Alex I would really like to help in getting this pcb available to DIY builders.

my only concern would be adding a additional pad/footprint for other size input caps for C1. just to provide options.


I am interested in 6-10 pcb's really just depends. I cannot commit to all 10 at this time.
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Old 14th May 2007, 10:28 AM   #3
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alex, i would like six boards. let me know if you want the money upfront. thanks
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Old 14th May 2007, 11:44 AM   #4
alexcd is offline alexcd  United States
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Does a single PCB 50% or 100% of a mono amp? i.e. How many would I need to buy to build 6 amps?

If you dont mind saying, how much did you pay for those cases? They look phenomenal but I can't read/write Chinese to order them. Maybe you could help do a second group buy if they are reasonably priced.
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Old 14th May 2007, 11:58 AM   #5
alexcd is offline alexcd  United States
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Are we on our own for DRV134 PCB's? That isn't as big of a deal I guess.
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Old 14th May 2007, 12:08 PM   #6
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the DRV should be simple enough.you can p2p on proto-perf board......... I have several pcb for the DRV from digi01 still, and have balanced out from my DCX crossover. maybe someone will try with the twisted pear txd pcb?

I have the resistors (0.3 2w 1%)for the pa150 amp, ill see if I cant scrounge up the required SMT caps/resistors, and trim pots.

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Old 14th May 2007, 12:17 PM   #7
alexcd is offline alexcd  United States
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These are going to be so great. Can anyone answer my other question about the PCB's being a half or whole mono amp?
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Old 14th May 2007, 12:38 PM   #8
alexw88 is offline alexw88  Hong Kong
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alexcd, you need 2 PCBs for a mono amp. For a stereo amp you need 4 PCBs.

For the cases I can't help here, as I am not satisfy with the web site that I ordered from. (www.my3c.net)
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Old 14th May 2007, 01:09 PM   #9
alexw88 is offline alexw88  Hong Kong
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Quote:
Originally posted by HIPCHECK
my only concern would be adding a additional pad/footprint for other size input caps for C1. just to provide options.
I could make it like this :

Click the image to open in full size.

Click the image to open in full size.

But if possible I don't want to change anything because my original board is tested and measured to be good. I just don't want to make any silly mistake on a 40+ PCB order.
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Old 14th May 2007, 01:14 PM   #10
alexcd is offline alexcd  United States
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I don't think that change is important enough. Leads should bend enough to reach the existing holes in most cases anyhow. No?
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