Re: [time-nuts] Any Isotemp OCXO107-10 Info?

2014-03-14 Thread Ed Palmer
The specs that I found here: http://web.archive.org/web/20010302193035/http://www.isotemp.com/ocxo107.htm say the electrical EFC range is > 0.1 PPM, but that's for the version with the D/A converter. I can't find any hint about our version. My unit is starting to settle down. Yesterday agin

Re: [time-nuts] Any Isotemp OCXO107-10 Info?

2014-03-14 Thread Poul-Henning Kamp
Since I had it out, I decided to let it run and this morning I measured the EFC characteristic. In my case perfect frequency is at 4.025V and the sensitivity is 0.2317 PPM/Volt so the design EFC range is probably +/- 1PPM -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org

Re: [time-nuts] Any Isotemp OCXO107-10 Info?

2014-03-12 Thread Ed Palmer
It's hard to see in the picture, but my oscillator is labelled: 0410-2540 Model OCXO107-10 Freq 5.000 MHz S/N6396-40 Notice the same '0410-2540' line. So you're probably right. I wouldn't be surprised to find that Lucent had multiple sources for the oscillator and their part nu

[time-nuts] Any Isotemp OCXO107-10 Info?

2014-03-12 Thread Arthur Dent
The photo looks like one of the 2 units I have but the info on one if my oscillators says: CTS Knights 970-2074-0    5 Mhz  0410-2540     8947 I'm pretty sure the last numbers are the date code. If more than one company made these units they could have been in some piece of equipment made u

Re: [time-nuts] Any Isotemp OCXO107-10 Info?

2014-03-12 Thread Poul-Henning Kamp
In message <5320c644.4070...@sasktel.net>, Ed Palmer writes: >Could be, but I didn't see a good picture of that oscillator. Here's the >one I bought: > >http://www.ebay.com/itm/121264125456?orig_cvip=true Looks exactly like mine. Good Bargain btw, the list price was north of $1k originally. --

Re: [time-nuts] Any Isotemp OCXO107-10 Info?

2014-03-12 Thread Ed Palmer
Could be, but I didn't see a good picture of that oscillator. Here's the one I bought: http://www.ebay.com/itm/121264125456?orig_cvip=true Ed On 3/12/2014 1:43 PM, Arthur Dent wrote: Sounds kind of like this oscillator. I found it to be very low power but it took about a week for it to really

Re: [time-nuts] Any Isotemp OCXO107-10 Info?

2014-03-12 Thread Poul-Henning Kamp
In message <1394653389.44185.yahoomail...@web122901.mail.ne1.yahoo.com>, Arthur Dent writes: >Sounds kind of like this oscillator. I found it to be very low >power but it took about a week for it to really settle down and >until then I was continually adjusting the EFC. The pinout looks the sam

[time-nuts] Any Isotemp OCXO107-10 Info?

2014-03-12 Thread Arthur Dent
Sounds kind of like this oscillator. I found it to be very low power but it took about a week for it to really settle down and until then I was continually adjusting the EFC. http://i906.photobucket.com/albums/ac262/rjb1998/Oscillator_zps63a30a2f.jpg -Arthur _

Re: [time-nuts] Any Isotemp OCXO107-10 Info?

2014-03-12 Thread Poul-Henning Kamp
In message <53208ed8.4090...@sasktel.net>, Ed Palmer writes: >Many thanks, Poul. > >This info is consistent with the wiring on my unit. By looking and >doing continuity tests, I've found ground on pins 2, 4, 6, and 7. The >wire on pin 3 is red so that's also likely a match to yours for the +5 le

Re: [time-nuts] Any Isotemp OCXO107-10 Info?

2014-03-12 Thread Ed Palmer
Many thanks, Poul. This info is consistent with the wiring on my unit. By looking and doing continuity tests, I've found ground on pins 2, 4, 6, and 7. The wire on pin 3 is red so that's also likely a match to yours for the +5 lead. Ed On 3/12/2014 2:31 AM, Poul-Henning Kamp wrote: In mes

Re: [time-nuts] Any Isotemp OCXO107-10 Info?

2014-03-12 Thread Poul-Henning Kamp
In message <531f7161.2080...@sasktel.net>, Ed Palmer writes: >I just picked up an Isotemp OCXO107-10 Oscillator. I thought it looked >like it might be interesting, but it turns out that it's better than I >thought. It's got a Dewar flask! I found the specs, but it didn't >mention anything ab

Re: [time-nuts] Any Isotemp OCXO107-10 Info?

2014-03-11 Thread Ed Palmer
The specs I found talked about double ovens and a 16 bit D/A converter for disciplining the frequency. Mine doesn't appear to have either of those. Sounds like the OCXO 107 series included a lot of different variants. Ed On 3/11/2014 3:48 PM, Poul-Henning Kamp wrote: In message <531f7161.2

Re: [time-nuts] Any Isotemp OCXO107-10 Info?

2014-03-11 Thread Poul-Henning Kamp
In message <531f7161.2080...@sasktel.net>, Ed Palmer writes: >I just picked up an Isotemp OCXO107-10 Oscillator. I can't remember which variant the on I have is. I'll check tomorrow. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD

[time-nuts] Any Isotemp OCXO107-10 Info?

2014-03-11 Thread Ed Palmer
I just picked up an Isotemp OCXO107-10 Oscillator. I thought it looked like it might be interesting, but it turns out that it's better than I thought. It's got a Dewar flask! I found the specs, but it didn't mention anything about that. So, before I let the magic smoke out, does anyone have