[time-nuts] looking for data on time code display

2011-12-11 Thread Steve Byan
A while back I picked up a couple of what Fair Radio was calling data line filters. They have a six-digit Nixie time display (hours, minutes, seconds) and apparently decode and display some kind of analog time code (IRIG, maybe?). It was made sometime in the early 70's; it's wire-wrapped with

Re: [time-nuts] looking for data on time code display

2011-12-11 Thread Jean-Louis Noel
Hi, From: Steve Byan steveb...@verizon.net NSN 6625003684180 == NSN: 6625-00-368-4180 INDICATOR, DIGITAL D Part No: 0N194800 Price Range: n/a Delivery Range: n/a Mfr/OEM/Agencies: JOINT ELECTRONICS TYPE DESIGNATION SYSTEM, NATIONAL SECURITY AGENCY == Bye, Jean-Louis

Re: [time-nuts] looking for data on time code display

2011-12-11 Thread Bob Camp
Hi Maybe you could call them up and ask for information on the system they went with….:)… Sounds like a great way to wind up on a no fly list. Bob On Dec 11, 2011, at 11:40 AM, Jean-Louis Noel wrote: Hi, From: Steve Byan steveb...@verizon.net NSN 6625003684180 == NSN:

[time-nuts] looking for data on time code display

2011-12-11 Thread ed breya
I doubt that you will ever find a manual or schematics, but you should be able to decipher enough of the circuitry to figure out how to fire it up and talk to it. The digits should be arranged in either a counter or individually addressable. If it's a counter, you should be able to find a 1

[time-nuts] looking for data on time code display

2011-12-11 Thread ed breya
I looked at your first post again and noticed there were apparently lots of TTL circuitry, so it could be an IRIG code receiver, and you should be able talk to it. If you don't have a source readily available, you may be able to fool it into responding a little to gibberish applied from a

Re: [time-nuts] looking for data on time code display

2011-12-11 Thread Bill Hawkins
Fascinating. I also have one of these with slight differences, but it does have a Fort Meade tag. Bought it from a guy on the BoatAnchors list in Atlanta in the dim past. The HTID number is H9823180065821, NSN 664500DISPLAY, User ID STWA104 The rotary switch adds a 160 KHz position. The two

Re: [time-nuts] looking for data on time code display

2011-12-11 Thread lists
...@iaxs.net Sender: time-nuts-boun...@febo.com Date: Sun, 11 Dec 2011 15:12:51 To: 'Discussion of precise time and frequency measurement'time-nuts@febo.com Reply-To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] looking for data on time code

Re: [time-nuts] looking for data on time code display

2011-12-11 Thread J. Forster
I think I've seen IRIG Time Code SW for the PC that uses a sound card, but I forget where. The various IRIG formats are well dovumented. And yes, Time Code readers were used with high and low speed searches on IRIG tape recorders. You set Start and Stop points and the tape would Play, Stop,

Re: [time-nuts] looking for data on time code display

2011-12-11 Thread Jim Palfreyman
Any chance of a photo? On 12 December 2011 04:26, Bob Camp li...@rtty.us wrote: Hi Maybe you could call them up and ask for information on the system they went with….:)… Sounds like a great way to wind up on a no fly list. Bob On Dec 11, 2011, at 11:40 AM, Jean-Louis Noel wrote:

Re: [time-nuts] looking for data on time code display

2011-12-11 Thread gary
Try their reading room first. http://www.nsa.gov/public_info/foia/reading_room/index.shtml If there is no information in the reading room, do a FOIA. This information is always run past lawyers, not engineers. Don't be surprised if you get a call from whatever NSA calls their legal

Re: [time-nuts] looking for data on time code display

2011-12-11 Thread Steve Byan
On Dec 11, 2011, at 4:12 PM, Bill Hawkins wrote: Fascinating. I also have one of these with slight differences, but it does have a Fort Meade tag. Bought it from a guy on the BoatAnchors list in Atlanta in the dim past. The HTID number is H9823180065821, NSN 664500DISPLAY, User ID STWA104

Re: [time-nuts] looking for data on time code display

2011-12-11 Thread Steve Byan
On Dec 11, 2011, at 5:25 PM, J. Forster wrote: I think I've seen IRIG Time Code SW for the PC that uses a sound card, but I forget where. http://www.dolben.org/IRIG.php Best regards, -Steve -- Steve Byan steveb...@me.com Littleton, MA 01460

Re: [time-nuts] looking for data on time code display

2011-12-11 Thread Steve Byan
On Dec 11, 2011, at 6:18 PM, Jim Palfreyman wrote: Any chance of a photo? http://www.gull.us/misc/nixie/dlf-front.jpg It's not mine, but it looks the same except that the yellow sticker is on the side of mine rather than the front. Best regards, -Steve -- Steve Byan steveb...@me.com

Re: [time-nuts] looking for data on time code display

2011-12-11 Thread J. Forster
Maybe something like a Datum or AstroData. The reverse code switch is for reading tapes backwards. It looks like a modified standard product. It does not appear to interface w/ a tape search controller. At a guess it's mid 1960s to mid 1970s, to go w/ something like an Ampex FR1800 or similar

Re: [time-nuts] looking for data on time code display

2011-12-11 Thread paul swed
It was just on the thread a month ago. nematime $15 donation. I have used it and it worked well. On Sun, Dec 11, 2011 at 5:25 PM, J. Forster j...@quikus.com wrote: I think I've seen IRIG Time Code SW for the PC that uses a sound card, but I forget where. The various IRIG formats are well

Re: [time-nuts] looking for data on time code display

2011-12-11 Thread Morris Odell
I had hoped the frequencies listed on the controls might trigger some association in someone who's knowledgable about time-codes. 250 Hz doesn't seem to be a legal IRIG time-code frequency, although 1 kHz is. I'd try feeding it with various frequencies as others have suggested and see what