Re: [time-nuts] Alfred Loomis - an early time nut

2020-05-13 Thread Poul-Henning Kamp
In message , Tom Van Baak writes: >Besides being the man behind LORAN, and a hundred other clever ideas, he >also pushed the state of the art in timekeeping, comparing the world's >best pendulum clocks against the best quartz clocks: While was instrumental in many ways for LORAN,

Re: [time-nuts] OCXO Support Board

2020-05-13 Thread Matthias Welwarsky
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

Re: [time-nuts] OCXO Support Board

2020-05-13 Thread Bob kb8tq
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

Re: [time-nuts] Alfred Loomis - an early time nut

2020-05-13 Thread Gary Woods
On Wed, 13 May 2020 09:23:45 -0600, you wrote: >Given all his accomplishments, he must have been a >"Renaissance Time_Nut"! My favorite quote from a bio of Loomis; he was shown the super secret British magnetron, and an engineer was trying to explain how it made high-power microwaves. Loomis

Re: [time-nuts] OCXO Support Board

2020-05-13 Thread ew via time-nuts
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, w...@triconet.org writes: Thank you to all who have written, on and off list, with

[time-nuts] OCXO Support Board - PCB Source

2020-05-13 Thread Bob Martin
It is nice to see PCBway mentioned. I've used PCBway for years. With over 30 designs, I've never been disappointed. Their best feature, aside from pricing, is the ease of getting quotes. They don't care about the number of holes in the board. Board dimensions, thickness and volume are the main

Re: [time-nuts] OCXO Support Board

2020-05-13 Thread Wes
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 ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to

Re: [time-nuts] OCXO Support Board

2020-05-13 Thread 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

[time-nuts] OCXO Support Board

2020-05-13 Thread Mark Sims
One thing that I recommend is that after completing the layout is to: 1) step back and wait a few days 2) enjoy a few adult beverages while waiting 3) go back a re-check everything 4) send it out to the board house You'd be surprised how often simple, subtle, not so subtle

Re: [time-nuts] OCXO Support Board

2020-05-13 Thread 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! Bill E. On Tue,

Re: [time-nuts] Alfred Loomis - an early time nut

2020-05-13 Thread Bob Martin
Thanks to all who replied. Book on order. Given all his accomplishments, he must have been a "Renaissance Time_Nut"! Bob ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to

Re: [time-nuts] OCXO Support Board

2020-05-13 Thread Wes
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

Re: [time-nuts] OCXO Support Board

2020-05-13 Thread Tom Van Baak
Bert, I found them. You posted the Gerber files as file OCXO.pcb-1.zip on 5-Nov-2018 here: http://lists.febo.com/pipermail/time-nuts_lists.febo.com/2018-November/094597.html http://lists.febo.com/pipermail/time-nuts_lists.febo.com/2018-November/094598.html /tvb On 5/13/2020 5:34 AM, ew

Re: [time-nuts] OCXO Support Board

2020-05-13 Thread jimlux
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

Re: [time-nuts] OCXO Support Board

2020-05-13 Thread Bob kb8tq
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 I haven’t used them for assembly, but the do

Re: [time-nuts] OCXO Support Board

2020-05-13 Thread Gerhard Hoffmann
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