As well as OSH Park, there is another PCB fabricating service called ITEAD Studio (Chinese I think), I've used them for a start lights device for my local model car club.

http://www.itead.cc/open-pcb/pcb-prototyping.html

Hope this helps

Thanks Joe, I will have a look.

Hi Howard

Mouser are saying the MC74AC4040NG is obsolete, have you got a recommendation for a replacement please?

Cheers

G

Try the 74LV4040AN, at DigiKey:
http://www.digikey.com/product-detai...6-5-ND/1594907

Cool, many thanks.

Howard,
Do I need all the jumpers installed on the decoder, J60,61,62,63 & 64?

I am testing maybe today I hope.

Thanks
Arnie

I like that this thread keeps continuing!

I just ran across these recently. Looks like it could be be an interesting back-end to Howard's amplifier. I'm not sure how easy the SDK is to work with, but the FPGA boards get more and more user friendly (for us mortals) with each iteration.

http://www.xess.com/shop/product/xula-200/

I like Sunstone Circuit (www.sunstone.com). Boards are priced by area. Check out their ValueProto boards. 2 Layers with masking starting at $28.

Thanks, they are a bit pricey for a 4 layer but good for reference.

All of these connections have no function at present, and may be omitted.

Well maybe in a week or two I can test, I had one more chip to get, the
MC74AC4040NG, it is coming from Israel. I will post my results when done.

Got my last chips delivered and performed some testing.

I tested using putTY monitoring the com port on my serial to usb converter.

here is the results from testing 2 different PTs,
the first one is the Howard design from the transponder thread.
The second one is one of my RC4 2wire transponders.

REV B COPYRIGHT 2013 HOWARD W. CANO
CDFD4C0000F1D5
CDFD4C00011A24
CDFD4C000125B0
CDFD4C0001359E
CDFD4C00014219
CDFD4C000157EA
CDFD4C000186EB
CDFD4C00018EE7

783D8400049A5A
783D840004A61C
783D840004D859
783D840004E41C
783D84000516BE
783D840005229E
783D8400055E39
783D840005B109

I tried zround software and no success yet.
I downloaded the flipside software but don't see any configuration to use the Cano decoder.

Howard can you email me the flipside software.

Looks like success !!!

Thanks Howard for all your work.

Looking good! Email sent.

I installed the latest Flipside Racing software. (thanks Howard)

Testing software with decoder and transponders went fine, works great!
Only thing left is go out and do some "in the field " testing on the track.

Has anyone powered the decoder from a USB port, we have no mains where this is going to be used so powering from the laptop usb would be great.