johnm said:
Don't worry.. I just started this thread last night. I will give it a week to see how much interest there is in the order, then work out pricing and farther details.
Add your name to the Wiki, along with what you are interested in.
http://www.diyaudio.com/wiki/index.php?page=NI+GC+PCB+Group+Order
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Brian
Peter Daniel said:
I was initially planning on using non-polar BG N caps, so I overlooked this. There also is currently no polarity marked on the pcb for the capacitors..
Here is a revised schematic, and I will update the pcb as well with polarity markings in the correct way.
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Brian
Attachments
Kit is good..
Hi BrianGT,
Please confirm that with this group buy kit it is true that only the following items are buyer's own responsibility in order to build one channel of 50W classA/B.
1/ one 400VA 22-0-22 transformer
2/ one power switch rated 10A
3/ one RCA input jack
4/ one set of speaker binding posts
5/ one in-line 3A slow blow fuse and holdler
6/ one power cord
7/ one chassis of ones choice if not remote PSU
8/ one volumn pot; what value?
If this is true I will be interested in 5 or 8 channels
Regards,
Chris
Hi BrianGT,
Please confirm that with this group buy kit it is true that only the following items are buyer's own responsibility in order to build one channel of 50W classA/B.
1/ one 400VA 22-0-22 transformer
2/ one power switch rated 10A
3/ one RCA input jack
4/ one set of speaker binding posts
5/ one in-line 3A slow blow fuse and holdler
6/ one power cord
7/ one chassis of ones choice if not remote PSU
8/ one volumn pot; what value?
If this is true I will be interested in 5 or 8 channels
Regards,
Chris
Re: sign me up too
Leo (and others interested in this group buy),
Put you name in the Wiki, along with what you are interested in for this order:
http://www.diyaudio.com/wiki/index.php?page=NI+GC+PCB+Group+Order
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Brian
Leo_Smith said:
Leo (and others interested in this group buy),
Put you name in the Wiki, along with what you are interested in for this order:
http://www.diyaudio.com/wiki/index.php?page=NI+GC+PCB+Group+Order
--
Brian
usekgb said:
I added an extra field to the Wiki sheet, where you can add stuff that you might not want... Yes, it will probably be a few dollars less without the diodes. I will sort out what exactly comes in the kit, in a few days, after I see how large the interest is for this order.
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Brian
To those thinking about getting boards, if you need hardware, read on.
If you're a Cardas fan, the 2nd annual Cardas bulk purchase is well under way. If you're interested see this thread in the trading Post Forum and the WIKI Page for details.
I have already started to send order confirmation emails to those that already placed their orders.
I will be accepting requests for the price list up until Wednesday, the 25th at 12 midnight EST.
PS: I will delete this post after Wednesday.
If you're a Cardas fan, the 2nd annual Cardas bulk purchase is well under way. If you're interested see this thread in the trading Post Forum and the WIKI Page for details.
I have already started to send order confirmation emails to those that already placed their orders.
I will be accepting requests for the price list up until Wednesday, the 25th at 12 midnight EST.
PS: I will delete this post after Wednesday.
Da5id4Vz said:
If you want a finished product, just buy one of Peter Daniel's great amps
The goal of this order is to make it easier to build a gainclone with a simple pcb. If someone else wants to offer a chassis for this project, they can do so in another group order. I have no interest in making chassis for this, due to time that it would take to do so.
Listen to Rodd, if you want great chassis connectors, get in on the Cardas order while you can. You will not find a lower price for these connectors. Here is a picture of my chassis, running the same circuitry that these pcbs contain. I used Cardas copper binding posts and RCAs. I also used a stepped attenuator, which is offered in another thread on this forum.
(this is the amp that I helped my friend Eric build last week http://www.diyaudio.com/forums/showthread.php?s=&threadid=28048 )
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Brian
Attachments
Peter Daniel said:It usually takes 2 weeks and is sent by air mail.
Mounting block can be made out of delrin. It's almost as easy to work with as MDF. If there is enough interest, I could produce them, as I already have experience with that
Hi Peter, technically a very good and sonically probably the best solution but it depends if you want to make those otherwise I think simple mounting holes are more convenient ( DIY-friendly that is ).
Brian, glad to see you edited the board. There is no other solution than the one you proposed or the one with the holes at the left and right side. I think it won't be easy to put a screw in at that place with the resistor soldered in though but I won't ask for more
Re: stepped attenuator
If you want the uninsulated version, put it in the Comments field, and I will see what I can do later. It might cost a few dollars more.
I started this group order less than 24 hours ago, and it has gotten big quite fast. I am going to wait a few more days, and see how large the demand gets for this. I haven't decided where I am going to source the parts from, as it will be determined by the quantity. I will work out the details of this, hopefully by the end of the week.
The Wiki is currently only a preliminary interest survey, and I will use this to look at the demand, and put together a kit and pricing structure.
Once the pricing and details are worked out, I will put together a shopping cart system on my website. I will be accepting money via paypal, once I work this whole thing out.
I can get some help from local friends in putting this thing together, as it seems like it will get larger than I imagined.
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Brian
elizard said:brian: are you going to order lm3875t (non-insulated) only? Or is there an option to purchase the lm3875tf?
I would personally be only interested in the insulated version.
btw, this thing is picking up momentum fast
If you want the uninsulated version, put it in the Comments field, and I will see what I can do later. It might cost a few dollars more.
jlh28 said:Brian, where were you able to order these from. I have as of yet been unsuccessful in locating the post were they were mentioned. Too much more searching at work and the IT guys will come down and ask me to actually do something today
I started this group order less than 24 hours ago, and it has gotten big quite fast. I am going to wait a few more days, and see how large the demand gets for this. I haven't decided where I am going to source the parts from, as it will be determined by the quantity. I will work out the details of this, hopefully by the end of the week.
The Wiki is currently only a preliminary interest survey, and I will use this to look at the demand, and put together a kit and pricing structure.
Once the pricing and details are worked out, I will put together a shopping cart system on my website. I will be accepting money via paypal, once I work this whole thing out.
I can get some help from local friends in putting this thing together, as it seems like it will get larger than I imagined.
--
Brian
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