Re: [time-nuts] Fast rise time pulser

>Question. Rise and fall times are sub 40ps is that a typo in your email No, those are the times provided in the test report that was sent with the pulser. Modern laser diode drivers are very fast (a MAX 3930 has a spec'd risetime of  ~25 ps). -- Bill Ezell -- The day Microso

Re: [time-nuts] Fast rise time pulser

etime 7.6% overshoot. Screenshot attached, don't know if it will actually make it into the post. This is exactly what I need for adjusting various of my time-related instruments. -- Bill Ezell -- The day Microsoft makes something that doesn't suck will be the day they make

[time-nuts] OT: ExpressPCB (cross-post from volts-nuts)

can't put that label there, it's copper and there's a trace there also) Really nice to be able to get real boards, even if it does end up being ~$23/board. -- Bill Ezell -- The day Microsoft makes something that doesn't suck will be the day they make v

Re: [time-nuts] One sure way to kill your FE-5680A or FE-5650A (Hal Murray)

200 ms before releasing Reset. Anything like that will have at least one corresponding power monitor chip with several supply voltage inputs and the appropriate delay. -- Bill Ezell -- The day Microsoft makes something that doesn't suck will be the day they make v

Re: [time-nuts] Fast risetime pulse generator

when all the charge has been extracted the diode turns of making a sharp edge. So the diode lifetime is important in relation to input drive frequency. For a sinewave drive the lifetime should be about 1/4 the period at the recommended drive level. -- Bill Ezell -- The day Microsof

[time-nuts] HP 54542A calibration

e. Triggering was rock-stable. There are also an amazing number of ways to do triggering. -- Bill Ezell -- The day Microsoft makes something that doesn't suck will be the day they make vacuum cleaners. Or maybe Windows 10. ___ time-nuts mail

[time-nuts] Fast risetime pulse generator

shoot in an HF amp). Again, just want to verify that the obvious answer is the correct one. I clearly need to be very careful about the inductance. Thanks, Bill -- Bill Ezell -- The day Microsoft makes something that doesn't suck will be t

[time-nuts] HP 5061 available, southern NH

on. You can respond to time-n...@quackers.net. Thanks, Bill -- Bill Ezell -- The day Microsoft makes something that doesn't suck will be the day they make vacuum cleaners. Or maybe Windows 10. ___ time-nuts mailing list -- time-nuts@febo.com To unsu

Re: [time-nuts] connectors

nces on the >interface connector. I’ve been doing this for > 40 years and I still mess >it up on a regular basis. We also seem to get it wrong from time to time >when we lay out connector connections on pc boards, but that’s another >story altogether ….. > -- Bill Ezell ---

[time-nuts] 5370 extender boards

I just got my extender board kit, just want to say the board quality is great. I have to give kudos to M.S., very quick ship, perfect. Now if I could just figure out how to adjust those pots on the input board without having a screwdriver that's 0.5" long, I'd be all set. :)

[time-nuts] HP5370 extender cards? (Mark Sims)

HP5370 extender cards? Depending upon quantity, cost should be in the $15 to $20 range. Absolutely, sign me up! -- Bill Ezell -- The day Microsoft makes something that doesn't suck will be the day they make vacuum cleaners. ___ time-nuts ma

Re: [time-nuts] time-nuts Digest, Vol 121, Issue 8

the annual switches to and from daylight saving time can cause one-hour discrepancies too. Fortunately, in this case, turning automatic setting off and then turning it back on forces a re-sync, thus supplying your phone with the right time. -- Bill Ezell -- The day Microsoft makes somethin

Re: [time-nuts] time-nuts Digest, Vol 121, Issue 6

p that would do that. There are MANY clock apps some show multiple time zones. Interannly the phone uses GMT (offset zero) -- Bill Ezell -- The day Microsoft makes something that doesn't suck will be the day they make vacuum cleaners. ___ ti

Re: [time-nuts] How are iPhones' clocks set under LTE?

ven keep the clock correct, who else knows what else is wrong there?". Tim N3QE -- Bill Ezell -- The day Microsoft makes something that doesn't suck will be the day they make vacuum cleaners. ___ time-nuts mailing list -- time-nuts@f

Re: [time-nuts] SDR Radio Opinion- Next Question - some links

27;s remarkably inexpensive, sounds like great fun just to play with. -- Bill Ezell They said 'Windows or better' so I used Linux. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailm

Re: [time-nuts] 50.971095 Mhz

Doesn't ring a bell, telecom-wise. A much more typical freq would be 51.84 Mhz for an OC-x sonet, or STM-x (SDH) bandwidth submultiples. -- Bill Ezell They said 'Windows or better' so I used Linux. ___ time-nuts mailing li

Re: [time-nuts] OT - DC-10 gyros

@febo.com wrote: Is this part of an HSI (horizontal situation indicator), ADI (attitude director indicator), INS (inertial navigation system), or autopilot? Are the bearings dust? Sounds like fun to play with though. What do you plan to do with it? -- Bill Ezell They

Re: [time-nuts] OT - DC-10 gyros

bo.com wrote: For "thumbsized" gyros, the power-drain is probably very slight. -- Bill Ezell They said 'Windows or better' so I used Linux. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/

[time-nuts] OT - DC-10 gyros

e velocity and position, and really weren't practical until the 70's when small enough computers existed to do the requisite calculations. (I worked on the nav system for the Trident missile back in my Draper Labs days). -- Bill Ezell They said 'Windows or better' so I us