Re: [time-nuts] 4046 replacement

2018-04-18 Thread Tisha Hayes
I too would recommend the 74HCT9046A instead of the 4046. The data sheet is here; https://assets.nexperia.com/documents/data-sheet/74HCT9046A.pdf *Ms. Tisha Hayes* On Wed, Apr 18, 2018 at 8:27 AM, Bob kb8tq wrote: > Hi > > If this is a new build, why use a 4046 in the first place?

Re: [time-nuts] Cheap jitter measurements

2018-04-08 Thread Tisha Hayes
ainty." Just like being trapped in a speeding car with the in-laws; Time is relative. And even if you are in a localized frame of reference it never goes faster. *Ms. Tisha Hayes* On Sun, Apr 8, 2018 at 9:18 PM, Adrian Godwin wrote: > That may be an article of faith for thos

[time-nuts] Environmental sensor recommendations

2018-04-04 Thread Tisha Hayes
) that are pretty easy to understand. There are also surplus temperature controllers on eBay that can accomplish the same thing. *Ms. Tisha Hayes, AA4HA* ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin

Re: [time-nuts] Repairs and mods underway on HP 3586b

2018-04-04 Thread Tisha Hayes
t; *BEEP* "It dices"*BEEP* "It will cut a cow in half" "BEEP,BEEP* -ad infinitum After that ran for a couple of days straight our engineering manager made us move the jig to a room far far away from his office. Tisha *Ms. Tisha Hayes* On Tue, Apr 3, 2018 at 11:14

Re: [time-nuts] quartz / liquid nitrogen

2018-04-02 Thread Tisha Hayes
. Tisha Hayes, AA4HA *Ms. Tisha Hayes* On Mon, Apr 2, 2018 at 2:58 PM, Poul-Henning Kamp wrote: > > In message <299B45118C9248498D7B4F3AFE72231E@pc52>, "Tom Van Baak" writes: > > >Has anyone tried running a quartz oscillator at liquid nitrogen > >te

[time-nuts] GPS antenna gain

2018-04-01 Thread Tisha Hayes
ce showing that I bought those over-amped up antennas from them, right out of their parts list. I still have a few of those antennas floating around here in the house. *Ms. Tisha Hayes, AA4HA* ___ time-nuts mailing list -- time-nuts@febo.com To unsubscr

[time-nuts] Repairs and mods underway on HP 3586b

2018-04-01 Thread Tisha Hayes
s that are already used for metrology (spec-an's, tracking generators, R-590 and a couple of other receivers). I will probably stick with those as frequency references as they are usually running for days at a time. *Ms. Tisha Hayes, AA4HA* ___ ti

Re: [time-nuts] TV Signals as a frequency reference

2018-03-30 Thread Tisha Hayes
chance of locking on to a commercial FM carrier (88-108 MHz). Some are quite accurate with less than 0.5 Hz of error. If you want both time and frequency then a GPS source is your best bet. You can get something like a ebay surplus Trimble Thunderbolt for less than $150. Tisha Hayes, AA4HA *Ms

[time-nuts] Introduction, new list member, Ms Tisha Hayes, AA4HA

2018-03-28 Thread Tisha Hayes
led me back to this list. If anyone has suggestions on making repairs I would appreciate the info; I am very capable of troubleshooting and making component level repairs, even if I have to take the tuning control apart to fix the optical chopper light source. *Ms. Tisha Hayes, AA4HA* *(Senior