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August 20, 2018, 12:20:25 AM
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Author Topic: Extended Famicom to NES converter.  (Read 4521 times)
muramasa
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« on: September 19, 2017, 05:35:23 PM »

First post here on Famicom world but figured it was something people here would be interested in. My extended Famicom to NES converter. I mainly made it for the purpose of using a FDS Ram adapter with a Toaster NES. Since the converters sticks out the front and can't be seated down a blinking light win or perfect pins are needed. It also doesn't look good being used with RF as the output, but looks amazing with even just composite.

It does have the expanded famicom audio hooked up though. So if your NES is enabled for expansion audio it will come through which is particularly important for the FDS.

I'm planning to make a small batch of them that I will bring to PRGE with me as well as put up on my website. I would like to find out how much interest there is to see if I should make more than that

Shout out to skyway1985 and tt for help troubleshooting problems with this. Probably would have stayed on the backburner forever if it wasn't for them.

This is the kind of thing being on my email list helps with. When they are available an email will go out to my email list or you can check my store at www.muramasaentertainment.com. I will also try to get back to this thread as well.

And of course some pictures


   


   


   


   


   
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UglyJoe
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« Reply #1 on: September 19, 2017, 05:42:31 PM »

Any ideas on a price range?  I am interested, but it would depend on price.
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muramasa
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« Reply #2 on: September 19, 2017, 05:51:24 PM »

Great question. I intended to originally put that in the post. Right now I'm planning on around $30.
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UglyJoe
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« Reply #3 on: September 19, 2017, 06:09:32 PM »

I would get one at $30, yeah Grin
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Jedi QuestMaster
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« Reply #4 on: September 20, 2017, 04:08:10 AM »

My NES was set up (not by me) for expansion sound for the Power Pak. But I think I remember someone stating that the pins for the Power Pak were different. Undecided Can anyone confirm? Huh

If I could use this on my NES to play games with expansion sound I'd be interested.
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P
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« Reply #5 on: September 20, 2017, 10:33:25 AM »

I'm also interested, I'd like to use it with a PAL NES. $30 sounds good for a quality adapter.

So it does expansion audio but what about the other pins? Many cart adapters bridge Famicom pins 48 and 49 (required for games that maps VRAM to the cartridge) instead of connecting them to their corresponding NES pins, does this adapter connect them correctly?
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skyway1985
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« Reply #6 on: September 20, 2017, 12:33:48 PM »

It works fine with the basic sound resistor mod, and also boots the N8 fine. I've had first hand experience with an early proto i was using for testing. it's an awesome piece.
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muramasa
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« Reply #7 on: September 20, 2017, 04:29:34 PM »

My NES was set up (not by me) for expansion sound for the Power Pak. But I think I remember someone stating that the pins for the Power Pak were different. Undecided Can anyone confirm? Huh

If I could use this on my NES to play games with expansion sound I'd be interested.

I connected the audio to pins 51 and 54 on the NES side. Generally on the Frontloader the audio mod is done on pin 54 and on the top loader it's done on pin 51. Which should cover the vast majority of users on the audio side. (also note I plan to do a top loader version at some point since it obviously doesn't need to be as tall as this one)

So it does expansion audio but what about the other pins? Many cart adapters bridge Famicom pins 48 and 49 (required for games that maps VRAM to the cartridge) instead of connecting them to their corresponding NES pins, does this adapter connect them correctly?

I did connect pins 48 and 49 properly. In fact when I first started with adapters I couldn't figure out for the life of me why they hooked up the pins that way on other adapters. It makes sense to connect them straight through and let the cartridge deal with if they should be connected together or not.
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Jedi QuestMaster
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« Reply #8 on: September 21, 2017, 05:51:37 AM »

Okay then, $30 yeah. I'm interested. Grin
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P
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« Reply #9 on: September 21, 2017, 07:30:06 AM »

Quote
I did connect pins 48 and 49 properly. In fact when I first started with adapters I couldn't figure out for the life of me why they hooked up the pins that way on other adapters. It makes sense to connect them straight through and let the cartridge deal with if they should be connected together or not.
Yeah it's not like it's something that will save money or anything, it doesn't really make sense. I guess someone started doing it for some reason and then others just followed the same design.

OK this sounds like a great adapter. Sign me up!
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L___E___T
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« Reply #10 on: September 22, 2017, 10:30:02 AM »

 
 
 
 
Same here - I don't really use my NES but look at that product design and attention to detail.  If you can stick to $30 you got an order from me for sure.

Checked out the website too - really like what you are doing there, and everything looks top quality to me (though admittedly I am new to electronics) Bub
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theoakwoody
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« Reply #11 on: September 25, 2017, 12:28:03 AM »

Iím down.  Count me in. Iíve always wanted one of those honeybee adapters.  Thanks for working on this.
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muramasa
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« Reply #12 on: November 30, 2017, 03:39:12 AM »

Available now on my site! HERE  Grin
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theoakwoody
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« Reply #13 on: December 08, 2017, 09:28:45 AM »

Available now on my site! HERE  Grin

Why does it say on your website that it doesnít work with the N8?  Are you just saying that you canít guarantee that it will work or that youíve tested it with the n8 and it absolutely will not work because of some hardware conflict?
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muramasa
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« Reply #14 on: February 13, 2018, 05:47:39 AM »

Why does it say on your website that it doesnít work with the N8?  Are you just saying that you canít guarantee that it will work or that youíve tested it with the n8 and it absolutely will not work because of some hardware conflict?

I had someone test it with the n8 and it didn't work. It was the only cartridge we couldn't get to work with it. Unfortunately I don't own a n8 so couldn't test further than that.
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