[time-nuts] Use the LT3042 for retrofit?

2018-03-20 Thread Perry Sandeen via time-nuts
Yo Dudes, Should one consider retrofitting  HP 105's,  Austron 1250's or HP 10811 power supplies with the LT3042 for better performance?  The price is modest.  The HP 10811 suggested PS for the EFC is a 723 circuit that spedc's 6 microvolts ripple IIRC. Regards, Perrier _

Re: [time-nuts] Qualcomm 1152 Synthesizer Boards

2018-03-20 Thread Mike Seguin
Not really "Time Nuts" related, but feed these 10 MHz and they make an excellent marker system for 2304, 3456, 5760, 10,368 and 24,192. (yes they have harmonics up to 24 GHz) --- 73, Mike, N1JEZ "A closed mouth gathers no feet" On 2018-03-20 12:26, Richard Solomon wrote: In rooting through my s

Re: [time-nuts] Qualcomm 1152 Synthesizer Boards

2018-03-20 Thread ew via time-nuts
Richard is that the BCDl   DDS sounds familiar, if so there  are Cs out there that need them and can not be found. Bert   In a message dated 3/20/2018 2:08:39 PM Eastern Standard Time, w1...@outlook.com writes:   In rooting through my stash, I found a couple of these boards that I picked up s

Re: [time-nuts] Looking for information on True Position GPSDO.

2018-03-20 Thread John Green
Mark, Yes, I saw that. My main interest at the moment is just getting the thing working properly. It isn't. On Tue, Mar 20, 2018 at 11:39 AM, Mark Sims wrote: > When I dumped the flash rom from one of the TruePosition units, we found a > couple of commands that seem related to OCXO learning. T

[time-nuts] Looking for information on True Position GPSDO.

2018-03-20 Thread Mark Sims
When I dumped the flash rom from one of the TruePosition units, we found a couple of commands that seem related to OCXO learning. They are discussed a little in the thread on EEVBLOG. > If you *do* go swapping around OCXO’s (or whatever) on a GPSDO board, it’s very nice to b

[time-nuts] Qualcomm 1152 Synthesizer Boards

2018-03-20 Thread Richard Solomon
In rooting through my stash, I found a couple of these boards that I picked up some years ago. Are they of any use these days or has technology made them obsolete ? Thanks, Dick, W1KSZ Sent from Outlook ___ time-nuts maili

Re: [time-nuts] Looking for information on True Position GPSDO.

2018-03-20 Thread Bob kb8tq
Hi If you *do* go swapping around OCXO’s (or whatever) on a GPSDO board, it’s very nice to be able to change the internal “magic numbers” to get the control loop running properly again. The TBolt kind of spoiled us all in that regard. Most GPSDO’s are not very user friendly in this regard ( = y

Re: [time-nuts] ULN regulator with more current capability than LT3042?

2018-03-20 Thread Attila Kinali
Hoi Gerhard, On Sun, 18 Mar 2018 21:41:28 +0100 Gerhard Hoffmann wrote: > Use the LT3042 with an external power transistor, such as D44VH10G: > > < > https://www.flickr.com/photos/137684711@N07/29197476530/in/album-72157662535945536/ > > > > > Performance is about the same as the LT3042 al

[time-nuts] There goes LORSTA Jan Mayen

2018-03-20 Thread Poul-Henning Kamp
http://jan.mayen.no/nyheter/destruksjon-av-loran-c-long-range-navigation/ -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by in