Skylights and such are easy to keep leakproof, but you do have to check the
plastic parts every once in a while. Years ago I installed one of those
sun-tunnel type tubes for a small, windowless bath, and it worked great;
however, about the time I replaced the roof, I discovered that the
Another possible option is running the cable through the same hole in the roof
as the vent pipe. Frequently (for bath exhaust vents and such) there is a ~4-8
tin or aluminum shroud hat around the vent pipe, and in many cases, a gap
between the pipe and roofing material (the shroud opening
These are amoung other reasons why I will never buy a house in a development or
with a HOA.
-Dave
- Original Message -
From: Bob Camp li...@rtty.us
To: j...@quikus.com, Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Thursday, September 27,
Well, that's what I love about the SF bay area- lots of old neighborhoods that
didn't have all these silly restrictions in place when they were built. There
are the usual CCRs, like I can raise chickens, but not cows, but it doesn't
mandate what three colors you can paint your house, or the
It sounds familiar, but I can't put a finger on it. For some reason, it reminds
me of the Lovecraft story about the circular prison complex that the prisoners
had to rotate one cell at a time via a big rope once a day. ..
-Dave
- Original Message -
From: Bill Hawkins b...@iaxs.net
Which means, of course, that it's almost impossible to make a profit on heavy,
low cost items.
I used to go out of my way to make sure my buyers were paying the actual
shipping costs, but after all ebay's changes, it's easier to estimate worse
case shipping coast to coast, or do free
But it's wrapped with bubble-wrap, surely that's enough, right? ;-)
I once received a RM502 scope that was similarly packed; it was a testament to
Tek's robustness that it wasn't damaged and actually worked out of the box.
-Dave
- Original Message -
From: David Kirkby
When I had my Tbolt running full time, I just had it sitting in the bottom
corner of a bookcase that was hard to get to (Tek 7104 on a cart packed with
other gear too was in the way, along with piles of other things). No drafts, so
the temp stayed pretty constant. It was taken out of full
Obviously, it's not a REACH to say that SIN was probably involved here... :-)
Ok, I'll go away now...
-Dave
- Original Message -
From: Jean-Louis Oneto jean-louis.on...@obs-azur.fr
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent: Monday,
It's good to know you can still wander in. I used to go there to browse on
rainy days when I had nothing to do (pre-internet, of course).
-Dave
- Original Message -
From: Rick Karlquist rich...@karlquist.com
To: li...@lazygranch.com, Discussion of precise time and frequency
A law firm with a technology department?
-Dave
- Original Message -
From: Michael Blazer mbla...@satx.rr.com
To: time-nuts@febo.com
Sent: Monday, June 4, 2012 7:44:26 PM
Subject: Re: [time-nuts] LightSquared in the news again
It's not a technology company if it has more lawyers
Sometimes half the fun of a new album was the great artwork and goodies
contained inside. Another bygone art form. I never did get excited by CDs and
tiny artwork.
I thoroughly enjoyed the article, along with the google translation.
-Dave
- Original Message -
From: Chuck Harris
Or worse, they will start requiring their scrappers to use a drill press or
punch to render the physics package unusable. I've seen this done locally by
hard drive manufacturers- hundreds of pounds of working HDs destroyed on
purpose on a regular basis. If they only scrap killed units, no one
I was hoping that pulling the lock LED from my setup would clear up my PPS
signal, but no luck. I'm now getting a 4.545Khz sawtooth with 10Mhz noise. I
need to peek at the input to the 74AC240.
-Dave
- Original Message -
From: Attila Kinali att...@kinali.ch
To: Discussion of precise
You mean you can't take it with you?! It will (hopefully) be a long time
before I get to that point, because it sounds boring already.
-Dave
- Original Message -
From: Bill Hawkins b...@iaxs.net
To: Discussion of precise time and frequency measurement time-nuts@febo.com
I like the ped-countdown displays here (San Jose, US) because I can better
judge if I'll need to stop or not when approaching an intersection. I've
noticed the drivers getting worse and worse about following basic laws like
stopping at red lights. Rush hour only makes things worse- at the
Finally got a chance to play with my 5680A, and was happy to see that it locks
in about 45 seconds from cold. The messy 10Mhz output is about 80mVpp, but the
weird thing is the output on pin 6 (1PPS). The output is a 20 microsecond,
1.8Vpp, square wave that is clean on top, but rings like
Mine is 0436 (still untested- too busy)
-Dave
- Original Message -
From: Peter Gottlieb n...@verizon.net
To: time-nuts@febo.com
Sent: Tuesday, January 10, 2012 8:09:51 PM
Subject: Re: [time-nuts] FE-5680A arrived
Got another one today, date code 0435.
On 1/10/2012 10:48 PM,
I finally broke down and bought one too- mine took about 10 days to get to the
west coast.
-Dave
- Original Message -
From: paul swed paulsw...@gmail.com
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent: Friday, December 30, 2011 7:27:13 AM
Subject:
I've never had to pay any duty for shipments from China, Japan, Europe, etc
-Dave
- Original Message -
From: li...@lazygranch.com
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent: Friday, December 30, 2011 3:41:43 PM
Subject: [time-nuts] Speaking of
Depending on how old these OCXOs are, I may have an original datasheet for
them. Most of my collection is early to mid 90's.
-Dave
- Original Message -
From: Javier Herrero jherr...@hvsistemas.es
To: time-nuts@febo.com
Sent: Friday, December 23, 2011 12:37:10 PM
Subject:
Figures...
-Dave
- Original Message -
From: Dan Rae dan...@verizon.net
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent: Friday, December 23, 2011 12:59:11 PM
Subject: Re: [time-nuts] eBay Giveaway Vectron OCXOs
On 12/23/2011 12:42 PM,
I don't know why anyone would want to buy a house within a homeowner
association.
It's too bad you can't install an antenna at the top of a tree, but all that
swaying around can't be good.
-Dave
- Original Message -
From: Peter Gottlieb n...@verizon.net
To: Discussion of
I fall into this category too. I used to wear an Avocet altimeter watch all
the time, but once the last of the three I had could no longer be fixed, I just
kind of gave up. I don't usually carry a cellphone either. I keep thinking I
should get a watch for those occations when I might
As I recall, Gilbert also offered some sort of Atomic energy lab set in the
early 50's; they'd probably have to call in the hazmat folks if one of those
appeared at a flea market.
Dave
- Original Message -
From: Chris Albertson albertson.ch...@gmail.com
To: Discussion of precise
Last time I drove by (Thursday) they were still there; maybe they were working
on the one closest to Yahoo (or maybe I was just worn out and didn't notice).
I'd love to have one moved to my back yard, but the neighbors would probably
complain (and the power lines would be too close).
Dave
The LW would explain missing single socks, pens, etc. The local randomness is
probably a quantum effect...
Dave
- Original Message -
From: Steve Rooke sar10...@gmail.com
To: time-nuts@febo.com
Sent: Friday, November 12, 2010 2:11:06 AM
Subject: [time-nuts] OT loosing things
Not ususally, anyway; my daughter has some with toes that are. Maybe high-end
socks?
-Dave
- Original Message -
From: J. Forster j...@quik.com
To: Steve Rooke sar10...@gmail.com
Cc: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent: Friday, November
LOL- They don't get lost, it's mine that vanish and turn up randomly.
Dave
- Original Message -
From: Mike Feher mfe...@eozinc.com
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent: Friday, November 12, 2010 4:35:54 PM
Subject: Re: [time-nuts] OT
Since when is the Anarchist Cookbook censored??? I have an original copy that
I'm saving for a sale about 30 years from now. ($$$ I hope) It's really a
rather simple publication with too much obvious information and questionable
recipes, or so I've been told by people who should know.
Dave
Wasn't there a sci-fi movie with a similar scene? (guy riding bomb, but in
space) I know I've seen it, but can't place it.
Dave
- Original Message -
From: Michael Conlen michael.con...@ncf.edu
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent:
I work with a guy who worked there for years as a CE. He still has contacts;
it's a real long shot, but I'll give it a shot.
-Dave
- Original Message -
From: Jason Rabel ja...@extremeoverclocking.com
To: time-nuts@febo.com
Sent: Monday, October 25, 2010 12:06:10 PM
Subject: Re:
I have it's slightly younger cousin, a Wavetek 5100; I thought mine had a 10MHz
reference, but I could be wrong. Never had an issue with it.
-Dave
- Original Message -
From: Larry Snyder lar...@teamlarry.com
To: time-nuts@febo.com
Sent: Tuesday, October 26, 2010 4:51:10 PM
The city of Sunnyvale was thinking of replacing it (the Blue Cube, etc) with
car dealerships, but decided against it because only 3 dealers would fit. I was
happy; who needs more car dealers?
They now want to do something that won't increase traffic too much. They also
just opened a bike
We had similar dome in Sunnyvale (Ca) until the late 80's, but I can't remember
who owned it, maybe GE?; it's all housing now.
Dave
- Original Message -
From: Arthur Dent golgarfrinc...@yahoo.com
To: time-nuts@febo.com
Sent: Friday, October 8, 2010 5:06:34 AM
Subject:
Between Tboltmon and Ladyheather, you'll see that your unit either works or it
doesn't. My bet is that it will work just fine, even if the antenna is indoors-
and then you won't be able to stop watching it (esp. with lady heather) for at
least a few hours... Have fun!
Dave
- Original
I got one of the ebay LPRO-101s about 6 months ago and played with it for a
while, but had problems maintaining a lock. First of all, it has a heat sink
bolted to the bottom that is just a little larger than the LPRO itself,
including being about 1.25 thick( 1 fins). Typical frequency when
Hi Bob-
I don't have the LPRO in a plugin, but I had considered it, and was wondering
if any of those that had built one had thermal and/or lock issues.
Re the sun in our valley... not this year! My tomatoes just started really
producing and my squash and zucchini still haven't even
Brings back memories- I was on the west coast of the south island in 1990,
leaning against a large log on the beach very close to the water line at
sunset, when a quake hit. Being from California, it was fun because I was used
to experiencing quakes in buildings, cars, etc; but I had never felt
I used to have a huge problem with my Comcast link going down (in Silicon
Valley!), but they seem to be MUCH more reliable than a few years ago. The
problem now appears to be very short outages, which seem to be caused by local
cell interference with my wifi network. Still trying to figure it
Hi Steve,
I don't know what the issue is, but my experience was very similar. My Tbolt
is the same (or very similar) to yours and worked fine for a few years off and
on. When Lady Heather became available, I took it out again. It worked great
with the antenna indoors in my lab for
Wow, kind of a cross between the old Halted and Alan Steel in Redwood City. I
know where to go if I need doorknobs!
Dave
- Original Message -
From: Burt I. Weiner b...@att.net
To: time-nuts@febo.com
Sent: Wednesday, March 31, 2010 1:24:47 PM GMT -07:00 US/Canada Mountain
I think tar paper basically has two functions these days- it's a cheap backup
in case the roofers don't install correctly, and the lines on the paper are
used as a guide to install the shingles.
Dave
- Original Message -
From: Chuck Harris cfhar...@erols.com
To: Discussion of
I've seen the butt weld (or crimp) of the wire in hermetic units fail due to
corrosion in both HP and Tek gear. In all cases (about 6), the gear appeared
to not have been protected too well from the elements, or was exposed to high
humidity for a long time. The good news is that it fails
Mine worked great for about two weeks, but now BITE goes high again after about
45 minutes. It's quite stable when it's locked. Haven't had a chance to look
closer yet.
Dave
- Original Message -
From: Jim j...@commo.com
To: time-nuts@febo.com
Sent: Tuesday, February 2, 2010 2:08:06
I hate the yellow lamps in my area because they are only found in certain
vicinities. You're driving along at night, maybe searching for something, and
suddenly one of the street lamps turns red! It's happened to me a few
times...
Dave
- Original Message -
From: Robert Atkinson
I took apart the last dead one just for that purpose. I initially eyed the
105deg Al cap, but it was dead, along with one of the xstrs (hole in package).
The film caps, diodes and fuse are still good too. As is the tube- don't know
what I'll do with that.
-Dave
- Original Message -
Please don't let you cat talk to mine!
Dave
- Original Message -
From: Thomas A. Frank ka2...@cox.net
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent: Wednesday, January 27, 2010 7:56:10 PM GMT -07:00 US/Canada Mountain
Subject: Re: [time-nuts]
And now they are trying to do away with edison bulbs. I hope the LED
equivalents are better, because the CF bulbs seem to last less in most home
apps. (I have standard bulbs that have outlasted multiple CF bulbs in similar
applications) In particular, I have a 75W desk lamp bulb which has been
I guess I wasn't too clear; it was the bare devices we were trying to destroy;
the VIC20 was just used for testing.
The largest discharge we got was from an acrylic rod and the cat.
- Original Message -
From: Charles P. Steinmetz charles_steinm...@lavabit.com
To: Discussion of
Atari used them by the truckload too, and again, probably due to price. I'm
sure somebody is probably still producing them, or can. It was a very durable
item; once, on a lark, we took one that had been run over by a truck and sat
out in the weather for who knows how long, bent the pins enough
Back about 1981, we had piles of 6502s, etc and decide to some antistatic
testing. We put a 40pin ZIF socket into a VIC-20, and then set about trying to
fry the uP using carpet, a cat, car seats, etc. The DUT was then put back into
the VIC and series of tests run to verify operation. I don't
Even worse are the tables with plastic tops...instasag! I've scavenged a few
local leg sets from dumped tables on the curb for future projects. My lab has
particle board tops covered with anti-stat matts, but they are sitting on 2
drawer filing cabinets and there is no sag. I have 4 racks
HA! The BT remover is one of my faves when nothing else works, and I don't
want to use the realy nasty stuff like paint remover. I was given a can about
15 years ago and I'm just now running out.
Dave
- Original Message -
From: Rex r...@sonic.net
To: Discussion of precise time and
Hi Corby,
I had decided to put the LPRO in another box, but then other things came up,
and now that I have time again, I'm thinking about returning to the TM module.
I'm curious as to what voltage regulator you used? The input and output are so
close that I'd thought only a dc-dc converter
Boy, does that bring back memories! I have had a bunch of SCSI drives with
this problem. One drive in particular was so bad that I had to use a plier to
free the spindle (about 1/4 was exposed for a grounding tab). I couldn't
afford a replacement at the time, so I kept hoping it would keep
Has anyone built a LPRO-101 into one of these plugin housings? I'm toying with
the idea, but don't want to reinvent the wheel. My biggest concern is getting
rid of the heat.
-Dave
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I'm not in AU (left coast US), but I've got a clock on my office wall that runs
backwards (the numerals progress CC too). I think I got it as a gift years ago
when Dick Smith had a store in the area. It didn't last very long.
Cheers,
-Dave
- Original Message -
From: Joseph Gray
It's so nice that they allow pacemakers all the time! I'd hate to think
people would have to turn them off for flights...
Why the ban on AM/FM receivers?
-Dave
- Original Message -
From: Thomas A. Frank ka2...@cox.net
To: Discussion of precise time and frequency measurement
It's not the silver I'm worried about. I saw a report on a website about 8
months ago regarding the scarcity of many of the rare earths that drive solar,
etc (yes, I've tried to find the report again, but can't). This was prior to
the whole China export thing. It predicted that many vital
I've dealt with Outback more than a few times because they are local to me. I
have never had an issue with them, and they've let me wander around and make
offers on stuff that wasn't active. Finding their physical location was the
only challenge... but they were the seller here- I've seen the
Don't know; I have an RD 1996 that is my main counter. No complaints at all.
-Dave
- Original Message -
From: Scott Burris slbur...@gmail.com
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent: Thursday, August 27, 2009 2:19:54 PM GMT -07:00 US/Canada
I think someone needs to take chill-pill and relax... are you humorless or just
an idiot?
I get tired of off-topic posts too, but I'd rather laugh than grind my teeth
over something light and fluffy...
Life is too short for negative stuff... laugh a little and live
longer...
As I recall, this is the type of antenna my handheld GPSr has. I had a set of
batteries bleed out in and had to disassemble it in order to do a good
cleaning.
-Dave
- Original Message -
From: Magnus Danielson mag...@rubidium.dyndns.org
To: Discussion of precise time and frequency
More inept governmental garbage. I rarely buy surplus anymore, but when I do,
it all gets broken down into parts/assemblies for spares and all markings are
removed and it goes into scrap mode. Occasionally, I have to build up something
from parts on hand, which can be fun... Come to think of
In my case, I have a large number of low angle peaks and valleys (hence the
leakage issue); my sky view is really good, and I'm planning on putting a set
of parallel horizontal bars about 18 apart between my 4 sewer riser and
another point about 15' away. All cables will be going through a 5
Lady Heather is great; I finally had a chance to try her out.
However, about 2 hours into my test it started loosing sats (indoor antenna, 3
to 6 sats at any given time; it lost 5 over the course of about 2 minutes) and
now the tbolt won't acquire anything. This, of course has nothing to do
http://wwwn.cdc.gov/travel/destinationUnitedStates.aspx
-Dave
-- Original message --
From: WB6BNQ wb6...@cox.net
Dave,
I would think the immigration people in the UK would probably have some idea
in
that regard. At least it would not hurt to ask them.
Since we're on the subject, what does BeO typically look like when it's used as
a washer, heatsink, etc. I ask because I tend to keep everything and I modify
things all the time. Is there any way besides being painted that it could pass
as Al?
-Dave
Hi David-
Any takers yet? While the last thing I need is another nixie counter (I have 4
or 5 already), I do have a soft spot for nixies, and hate the way so much gear
has been chopped up for trendy clocks. That said, what I'd really like to do
is make an accurate, self turning hour glass
Any ex-Cylink or Pcom folks out there?
-Dave
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and follow the instructions there.
The cable length issue was a pain for me because I built my GPS box in stages,
leaving the dist amp for last. In the end I found a nice used commercial unit,
but it didn't fit in the planned location (the unit I was going to build would
have had outputs near the center of the box), so I have 3
I'm not sure about the manufacturer of mine, the label just has a serial
number, made in usa, and part number 25045-10. It came with my tbolt when I
got it from ebay a few years ago. The whole set including the ps and a bunch of
coax was $199 (buy it now)
-Dave
-- Original
The parts I have don't have date codes, but they must be circa 1990. Is there
any data out there regarding RK devices? My library has nothing and the web
appears to be silent too.
-- Original message --
From: Jeffrey Pawlan [EMAIL PROTECTED]
They were a
The mechanical
clepsydra shown overleaf is simple in operation. The cylindrical
vessel is slowly filled with water and a float with a stem and rack
engages the wheel to which the hour hand is attached. As the vessel
fills so the float rises and the hour hand is made to rotate. When
the
I'm finally getting around to reinstalling my Z3801A after frying and then
fixing the on-board power supply, but I'm really paranoid about doing it again
(I had forgotten that the unit has a positive ground). The external supply had
floating outputs, the AC input was grounded to the chassis
I too have never seen one go dim. In fact, I have a VCR (Beta!) that's been
pluged in continously since I got it new in the early '80s. It still looks the
same as when I got it except that the display has had a left to right wave
going through it since about 1995. So, wavy- but not dim at
I have a 103AR I got about a year ago which doesn't oscillate. I got the
manual scans from someone out there, so it has been done, but is not widely
available. Mine is a series of separate files, so a unified file might be
useful to others in the future.
-Dave
-- Original
The ears I have should be the same as the one on the right side in the
hp2.jpg, except for the 1 spacing.
-Dave
-- Original message --
From: Stanley Reynolds [EMAIL PROTECTED]
Correction my counter is a HP5334A not B sorry don't know if they are
different.
I think I have some; what is the height? 2RU?
-Dave
-- Original message --
From: Scott Mace [EMAIL PROTECTED]
Does anyone know where I can get a set of rackmount ears for the 5334B?
I need to rack this unit and take off the feet.
Scott
Hi Scott-
I do have two that should work. One is marked HP 3490, so if that one uses the
same you should be fine. The mounting holes (ear to counter) are 1 apart and
are set back .5 from the front of the flange. I'd send you a pix, but my
camera is hiding somewhere.
-Dave
--
Randy-
Here's some minimal info:
http://www.datasheetarchive.com/VF154-datasheet.html
I don't have access to my databook collection at the moment, but given the date
codes on those oscillators, they may be long obsolete.
-Dave
-- Original message --
From: Randy
While the mini-T is obviously not the same, the -E version many be nothing more
than a RoHS compliant version of the original. I've seen many changes to
devices/assemblies in the past year or two, but when the smoke clears it's
nothing but a RoHS-related change. In fact, in many cases, there
After digging through boxes tonight, I found a few leftover bits from when I
did some work for Trimble, in particular a couple of antennas from their early
handheld units that I'll like to try out with a Jupiter board.
I thought the connector was a Hirose H.FL (3mm tall) male, but I found some
My feelings exactly, I would have done the same except that (1) I already have
a Tbolt, and I had so many messages, that I (2) started in the middle of the
flood...
The original message should have been worded in such a way to avoid a massive
reply. At this price, I really had to convince
Richard-
Schematics for the power supply/oven control board are available, but I've
never seen anything else. (and even those are not from HP)
-Dave
-- Original message --
From: Richard W. Solomon [EMAIL PROTECTED]
I have one coming and am looking to collect some
First of all, many thanks to those who gave help, hints, ideas, and schematics
(!) over the past eight months; all was appreciated!
The story: I was building a master power/timing module for my rack system,
including a Z3801A in a snazzy pull-out configuration with a dist. amp. All
was great
Hi Jeff-
I have only used SatStat with my Z3801A, and it did take a while to get it set
up right under XP. I much prefer Tboltmon for the Thunderbolt. Now that both
are functional, I can start playing with them.
I found that the Z3801A with the std HP antenna and recommended cable didn't
Are these switches the same as the ones in the 1996? Mine works perfectly now,
but if the switches are a ticking time bomb, I'm going to move it to a area
with better temperature control, and start looking for a donor unit just in
case.
-Dave
-- Original message --
Are any schematics available, especially for the power supply board?
-Dave
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So you put a sensor on the neck of the hourglass, and rotate it whenever the
sand stops falling. You'd have to adjust the sand to make up for the rotation
time, and to further calibrate it...
-Dave
-- Original message --
From: Bruce Griffiths [EMAIL PROTECTED]
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