BPA300 mono block

alexw88 · 14th May 2007, 02:44 AM

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.

HIPCHECK · 14th May 2007, 07:12 AM

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.

tryonziess · 14th May 2007, 10:28 AM

alex, i would like six boards. let me know if you want the money upfront. thanks

alexcd · 14th May 2007, 11:44 AM

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.

alexcd · 14th May 2007, 11:58 AM

Are we on our own for DRV134 PCB's? That isn't as big of a deal I guess.

HIPCHECK · 14th May 2007, 12:08 PM

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.

alexcd · 14th May 2007, 12:17 PM

These are going to be so great. Can anyone answer my other question about the PCB's being a half or whole mono amp?

alexw88 · 14th May 2007, 12:38 PM

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)

alexw88 · 14th May 2007, 01:09 PM

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 :

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.

alexcd · 14th May 2007, 01:14 PM

I don't think that change is important enough. Leads should bend enough to reach the existing holes in most cases anyhow. No?

14th May 2007, 02:44 AM	#1
alexw88 diyAudio Member Join Date: Mar 2004 Location: HK	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. __________________ My Audio Page

14th May 2007, 12:38 PM	#8
alexw88 diyAudio Member Join Date: Mar 2004 Location: HK	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) __________________ My Audio Page

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
BPA300 mono block finished and measured	alexw88	Chip Amps	309	23rd January 2021 07:38 PM
6AS7 Mono Block's	jleaman	Tubes / Valves	55	23rd December 2004 09:49 PM
mono block amp	Mark Osborn	Solid State	11	16th March 2001 06:07 PM

New To Site?	Need Help?
Register to Participate Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

14th May 2007, 07:12 AM	#2
HIPCHECK diyAudio Member Join Date: Jun 2004 Location: ARKANSAS	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.

14th May 2007, 10:28 AM	#3
tryonziess diyAudio Member Join Date: Apr 2007	alex, i would like six boards. let me know if you want the money upfront. thanks

14th May 2007, 11:44 AM	#4
alexcd diyAudio Member Join Date: Sep 2004 Location: US - Boston	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.

14th May 2007, 11:58 AM	#5
alexcd diyAudio Member Join Date: Sep 2004 Location: US - Boston	Are we on our own for DRV134 PCB's? That isn't as big of a deal I guess.

14th May 2007, 12:08 PM	#6
HIPCHECK diyAudio Member Join Date: Jun 2004 Location: ARKANSAS	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.

14th May 2007, 12:17 PM	#7
alexcd diyAudio Member Join Date: Sep 2004 Location: US - Boston	These are going to be so great. Can anyone answer my other question about the PCB's being a half or whole mono amp?

14th May 2007, 01:14 PM	#10
alexcd diyAudio Member Join Date: Sep 2004 Location: US - Boston	I don't think that change is important enough. Leads should bend enough to reach the existing holes in most cases anyhow. No?