I think I have the design ready. I am very happy with its performance and form-factor. I might continue tweaking it a little bit but it's necessary to declare any project ready to ship at some point. So it is.
Here is the list of features it has ended up with.
- Fixed 10MHz pulse train with fast rise and fall times.
- Rise time and fall time around 50ps
- Variable amplitude between 100mVpp and 1Vpp (via USB .) AC coupled.
- Trigger output ~1.5Vpp amplitude into 50R load. AC (default) or DC (solder jumper) coupled
- BNC jack for direct connection to oscilloscope input
- USB powered. Power requirement is 200mA at 5V. Can be powered from a USB charger.
I have about a dozen PCBs and can supply them starting from next week at £50 plus shipping for a fully assembled, tested and ready to go unit. This will barely cover my design costs and if this becomes a commercial product will probably be revised (up or down.)
As a bonus I will print out individual rise/fall time screenshots for each unit on my CSA 803A + SD-26 test setup for this run and supply them with the device.
It would be helpful if you indicate your interest by posting here so that I know how many units to assemble.
Thanks
Leo
P.S. I hope this is not considered heavily commercial for this forum. If you think it is please let me know.
I have about a dozen PCBs and can supply them starting from next week at £50 plus shipping. This will barely cover my design costs and if this becomes a commercial product will probably be revised (up or down.)
It would be helpful if you indicate your interest by posting here so that I know how many units to assemble.
I would be interested, but please clarify, £50 for the PCB, PCB + parts or assembled kit?
I would be interested, but please clarify, £50 for the PCB, PCB + parts or assembled kit?
Fully assembled, tested and ready to go unit.
Thanks
Leo
Definitely, I'd take one if I may, thank you!
I too would be interested in this device.
Put me down for one also.
Cheers and thanks.
I'm good for one as well
paul
Thank you, gentlemen. I'm on it.
let us know if you put up a preorder/page list
i WANT one when they'll be ready, but would you consider in the future a new version, powered by let's say 2 coin cells? instead of having to connect a usb cable...
where did you get your pcb made? i like them very much, simillar to the boards from one of our assemply houses (they're quite expensive to set up though, for hobby projects)
Great job!
If your batch isn't sold out, I would also love to buy one.
I will try to accommodate everyone
Thanks, guys.
Add me to the list too please.
One for me, if you can ship to US. I'm happy to take a single US shipment as remail them to final destination.
You can set up a public Google Docs spreadsheet and link it, people can add their names to the list. Worked well for me, no need to trawl through posts to see who wanted one
May I order one. Thank you.
I would like to buy one too
Thanks, all. The purpose of having people expressing interest is so that I can estimate suitable batch size and purchase components in correct quantities. This has worked great so far, I see that I need to run another batch of PCBs early next week.
Thank for your offer electrolust, I can ship with FedEx or Airmail around the world from our small office so this is not a problem. We get good rates.
Count one in for me too ...
Leo,
awesome! I would like to buy one, too!
Regards,
Andreas
Put me on the list. Another great forum project showing up on a great forum.