BBA Circuitry?

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uglybuddy6
undertow
Posts: 32

Re: BBA Circuitry?

Post#11 » Sat Feb 25, 2012 8:50 pm

elmagicochrisg wrote:Image

What?

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elmagicochrisg
Metallic
Posts: 888

Re: BBA Circuitry?

Post#12 » Sat Feb 25, 2012 8:55 pm

uglybuddy6 wrote:
elmagicochrisg wrote:Image

What?

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mazonemayu
Agent Provocateur
Posts: 3946

Re: BBA Circuitry?

Post#13 » Sun Feb 26, 2012 4:39 am

uglybuddy6 wrote:I know i certainly wouldn't wanna put $150+ dollars into something that i could make for say $20. If i did buy would it be worth it for just say a few games it works for? If we can find a way to make it for cheap would could produce them and have a bigger dreamcast online community.


it has been tried before, you don't make these things for $20 (there's a reason why they're so expensive). there's folks out there who managed to build one for theirselves, but on a massive scale?? taking parts, working hours, selling (no one's gonna hand em out for free) & shipment into consideration, you'll end up with a more expensive device than the bba already costs.

I agree they aren't cheap, but neither is Border Down. besides, if you buy one & ever wanna sell it again, you'll easily get your money back (plus a little extra).
We are SEGA generation.

uglybuddy6
undertow
Posts: 32

Re: BBA Circuitry?

Post#14 » Sun Feb 26, 2012 12:56 pm

mazonemayu wrote:I agree they aren't cheap, but neither is Border Down. besides, if you buy one & ever wanna sell it again, you'll easily get your money back (plus a little extra).

I can at least try right?

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brourke228
Game Server Admin
Posts: 703

Re: BBA Circuitry?

Post#15 » Thu Mar 01, 2012 2:54 pm

There are already photos of the broadband adapter pcb online: http://users.skynet.be/t_chan/dc/dc_mod ... modems_bba
If someone was really going to remake this thing they would have one on-hand though. There are only 4 ICs on the board. The Realtek 8139C is easily obtainable. I'm not sure about the Pulse IC. Two of the ICs can't be read from that photo though. Everything else is just common electronic components. The values for each of those components would need to be determined.

If the schematic for this board was sent to a pcb manufacturer the costs would still be well below the $180 bba goes for. I imagine it would sell for probably 40-80$. http://compare.ebay.com/like/3705674528 ... si=y&cbt=y 33 Realtek controllers for $25 I would say that is pretty cheap.
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uglybuddy6
undertow
Posts: 32

Re: BBA Circuitry?

Post#16 » Sun Mar 11, 2012 12:41 am

brourke228 wrote:There are already photos of the broadband adapter pcb online: http://users.skynet.be/t_chan/dc/dc_mod ... modems_bba
If someone was really going to remake this thing they would have one on-hand though. There are only 4 ICs on the board. The Realtek 8139C is easily obtainable. I'm not sure about the Pulse IC. Two of the ICs can't be read from that photo though. Everything else is just common electronic components. The values for each of those components would need to be determined.

If the schematic for this board was sent to a pcb manufacturer the costs would still be well below the $180 bba goes for. I imagine it would sell for probably 40-80$. http://compare.ebay.com/like/3705674528 ... si=y&cbt=y 33 Realtek controllers for $25 I would say that is pretty cheap.


Thanks! This will come in helpful. Like a normal realtek card for pc cost like $5 so this could be made relatively cheap i imagine.

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BlueCrab
Developer
Posts: 766

Re: BBA Circuitry?

Post#17 » Mon Mar 19, 2012 9:55 am

The IC on the connector side is basically a Sega-custom ASIC which adapts the G2 external bus to basically look like PCI for the RTL8139C. Cloning the BBA would require cloning that ASIC's functionality, obviously.

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