Most telephone company stuff is engineered to last 20+ years - it takes them a few years to recoup there investments cost wise, and the electronics are usually close to mil specs. Probably what happens, is they engineer a whole new system and all the old systems , racks and all go. Brian KD4FM Edwin B.

= circuit ground E3 = modulation input, 0-10VDC, .4kHz/V to 1.2kHz/V, negative transfer E4 = case ground 100 MHz, +13 dBm output 40 ppm max, -18C to 75C --------------------------------------------------------------------- On Mon, Jun 8, 2009 at 1:30 AM, wrote: Vectron OXCO 233-5368-1 / WJ 708249-001 2.0" / 2.0" / 0.50" SMA output / mil

I remember to all these strange mmH, µµF etc. when I collected > >rare inductors, capacitors revovered from vintage MIL- equipment in > >the end fifties/ early sixties of last century ... :-) > > > >I believe that Time Nuts prefer precise and clear expressions!? ;-) > >What do you think about it?

HP equipment from the 1980's is pretty immune to the problem because they typically use hermetically sealed mil spec tantalum capacitors. Tektronix equipment from the 1980's is infested with tantalum problems because they used the cheap epoxy dipped parts. Tantalum failures are pretty rare in equipment that is run continuously.

This need to be on the order of a mil. Now they use the Gun Laying System that's part of the later PLGR GPS receivers and all of the DAGR GPS receivers. There's two versions of this: 1) uses a single GPS receiver and the other 2) uses two GPS receivers.

:-D It's built like a piece of mil-spec equipment. >>> When I google for individual parts, I keep tripping over NSN numbers. >>> Now >>> that I look closely at it, I realize that the case is just the case with >>> no >>> electrical connection between it and the circuit other than the BNC jacks >>> on the front panel.

Anthorn is not ideal but it was already a Mil VLF (19.6kHz) site. The original experiment was mounted from Trinity House, the Lights an Nav authority for the UK, at their base in Harwich just across the river from me. The French have attempted to resurect the Mediteranean chain but have had no interest.

Last page in the 75 book is a description of MIL-STD-883B Interesting parts.. They aren't kidding when they say you need good power supply bypassing and decoupling.

Hi A mil standard leak test works like this: First you run a bubble leak, generally in something like hot synthetic oil. If the leak is too big, you will not catch it with a helium test. Next you put the parts in a pressure vessel and pressurize it with helium (or possibly a gas mix).

Am 02.01.2013 19:54, schrieb Tom Van Baak: > What's the simplest way to generate 16 MHz from 10 MHz? This will be for clocking a microcontroller at 16 MHz given 10 MHz (Cs/Rb/GPSDO).