Wanted: Nick de Smith SMPS board.

[RHC]

Hi Im looking for a Nick Desmith smps board

http://desmith.net/NMdS/Electronics/NixiePSU.html

preferably stuffed, but will take a blank. 

If you have one you would be willing sell please private email me. 

thanks

Bob

[Nick]

There are several people out there selling variants of this board, or at least similar ones - I don't have time to make or sell boards, unfortunately.

The Taylor Edge 1363/1364 are well regarded, as are those by Mike Moorrees (aka. threeneurons) - many others out there!

Cheers

Nick (de Smith)

[Thomas K.]

I have a whole stack (20+) I had made a while back.  I would be more than willing to sell some off.  They are blank, however.

[threeneurons]

I made a one off MAX1771 supply following Nick's guidelines, as best I could using thru-hole parts, and got very impressive results. Not quite, what Nick got, but still a lot of power..

 

The Taylor Edge 1363/1364 are well regarded, as are those by Mike Moorrees (aka. threeneurons) - many others out there!

Taylor's supplies can kick out a lot of power. I haven't compared them with the MAX1771 design, so I can't say if its more or less. They can still output significant current from just a 5V in, if that's needed. Taylor's day job, is designing supplies, and he uses a custom transformer. 

The claim to fame, on my units, is that the kits are cheap ! Its not the most efficient design, its max output is less than the ones above. It still, however, can power a 6 tube IN18 direct drive clock. Thanks to the Chinese for using the MC34063 in the millions, in USB car chargers, that chip's price continues to fall. Mine are kitted from all "off the shelf" parts. Of course my supply is a better design than the first supplies, I encountered, that used the MC34063.

With the optimal coil (which doesn't come with the kit), my MC34063 can output close to 10W. I think the MAX1771 can do 20W (120mA @ 170V). Those are the max numbers. 

 

[RHC]

Thanks for all your responses.  I thought I had this group set up to email me if there were any responses, but I messed up somewhere and just discovered these today. 

Bob