Hi Some of the Chinese outfits flip that model around the other way. You get to use the parts they have in stock. Setup *appears* to be dirt cheap, as well as the basic parts costs. One of many examples: https://jlcpcb.com <https://jlcpcb.com/> I haven’t used them for assembly, but the do make ok boards. Since the parts range is limited, you will be putting a few things on yourself. I’d guess that 90% of the parts on a typical board will be things they can supply. Is there another gotcha? Not at all clear (yet). The outfit above has two categories of parts (basic and extended). It appears that when you go into the extended group, there may be some minimum order gotchas …. Bob > On May 13, 2020, at 9:17 AM, jimlux <jimlux@earthlink.net> wrote: > > On 5/13/20 5:56 AM, Bob kb8tq wrote: >> Hi >> There are a number of free ( = there is no license fee ) pcb layout programs out there. >> One of the many is KiCad. It’s not that hard to use. It is very popular. There are a lot >> of YouTube videos and blogs detailing how to do this or that with it. Laying out a board >> to mount an OCXO on is a pretty good starter project. >> Once you get going, a board is a weekend project. Indeed, a simple board might be an >> evening project. There’s not a lot involved. >> Once you have your layout, it goes off to any of a number of outfits. Seeed Studio is >> one that many people use. WellPCB is another that comes with a lot of recommendations. >> As long as you stick with < 100 mm x < 100 mm parts a number of places will sell you >> boards for 50 cents each. >> Shipping does cost $20 to $30, so doing more than one board at a time is a pretty good >> idea. If you are laying out five boards a week, batching them up isn’t the hard part :) >> While most don’t seem to use it, many board houses also offer assembly / pick and place >> services. On a board that uses simple parts, that might take out the whole assembly >> process. No idea (yet) how well that part goes …. > > > I've used several assembly services (in Oregon, as it happens) for small boards at work (<100mm square, although that's not a requirement for the service) and had relatively good luck. One of the nice things is that some services will actually order and kit the parts for you - you send them a board design, with a parts list from digikey, and a couple weeks later, you get your boards back. > > It's not super cheap, but it sure is convenient. > > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there.

Am 13.05.20 um 13:35 schrieb Bill Notfaded: > I've been trying to find a base PCB design to use too. In the interim I > bought some boards from Gerry Sweeney that sells them for HP5313x frequency > counter OCXO upgrades and supports different footprints. Open source > design is even better. OSHpark is great. Please post it! Here it is: < http://www.hoffmann-hochfrequenz.de/downloads/ocxo_carrierV2_pack.zip    > These are the Gerber files as used by PCBway to produce my boards. 2 buglets: - the 2 mounting screws for the 10811 should be slightly bigger.   Drill as needed - Unless the oscillator delivers only a small signal, the 2 emitter capacitors should   each get 22 Ohms in series to adjust gain. This will be addressed in V3. Circuits are included, comments and small change requests are welcome, could be done shortly thanks COV19. cheers, Gerhard > Bill E. > > > On Tue, May 12, 2020, 11:59 PM Matthias Welwarsky <time-nuts@welwarsky.de> > wrote: > >> On Dienstag, 12. Mai 2020 20:53:25 CEST Gerhard Hoffmann wrote: >> >>> Ten boards did cost $5 at PCBway, DHL wanted $25 for transport. :-< >>> I can publish the Altium Designer project or the Gerber files when the >>> 1st ten are used up >>> and there has been somewhat more testing. The number of possible >>> combinations >>> is quite large. >> If you publish the Gerber files, People in the US can use OSHPark for >> having >> the boards made, in EU Aisler.net is probably the best option. >> >> BR, >> Matthias >> >>> Cheers, Gerhard >>> >>> Am 12.05.20 um 19:52 schrieb Wes: >>>> Does anyone know of a ready made board that will allow me to mount and >>>> at the least, minimally support the operation of an MV89A oscillator. >>>> I have one which I've powered up deadbug style and would like to clean >>>> up the mess a little. >>>> >>>> Thanks >>>> >>>> Wes N7WS >>>> >>>> >>>> _______________________________________________ >>>> time-nuts mailing list -- time-nuts@lists.febo.com >>>> To unsubscribe, go to >>>> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >>>> and follow the instructions there. >> >> >> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@lists.febo.com >> To unsubscribe, go to >> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there.

Thank you to all who have written, on and off list, with offers of boards and advice on how to make my own.  Much appreciated. I think I'm on to one that meets my fairly simple needs and uses through-hole components.  I have done SMT construction in the past but things have shrunk in size by an order of magnitude since then it seems.  (I can remember laying out boards by hand, taping up the artwork 4:1, reducing it photographically, exposing and etching boards.  So today's technology is magical.) Many of you are doing some awesome work.  Well done. Wes  N7WS

You give away your age, was there did a lot of it and off to the repro shop and than the board manufacturer. All local in Houston. Bert Kehren In a message dated 5/13/2020 10:39:48 AM Eastern Standard Time, wes@triconet.org writes: Thank you to all who have written, on and off list, with offers of boards and advice on how to make my own.  Much appreciated. I think I'm on to one that meets my fairly simple needs and uses through-hole components.  I have done SMT construction in the past but things have shrunk in size by an order of magnitude since then it seems.  (I can remember laying out boards by hand, taping up the artwork 4:1, reducing it photographically, exposing and etching boards.  So today's technology is magical.) Many of you are doing some awesome work.  Well done. Wes  N7WS _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.

AC0XU (Jim) I responded to your email address and it bounced.  I would be happy to get a board from you. Let me know how to proceed. Thanks, Wes

I can remember "wiring" up some X-band test equipment with WR90 waveguide, flanges and a brazing torch. We "miniaturized" the missile hardware by using 1/4 height W/G. Circa 1966. Wes On 5/13/2020 9:12 AM, ew via time-nuts wrote: > You give away your age, was there did a lot of it and off to the repro shop and than the board manufacturer. All local in Houston. > Bert Kehren >