are available.
Thanks,
Burt, K6OQK
Burt I. Weiner Associates
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Glendale, California U.S.A.
b...@att.net
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Gang,
The free stuffs has all been spoken for.
Thanks,
Burt, K6OQK
Burt I. Weiner Associates
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ing?
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Gang,
Just a quick not to wish all of you a Happy
Thanksgiving. Thanksgiving is the best of the Holidays; a time to
give thanks for them many blessings we have and to be with those who
are most important to us. May all of your standards and time pieces agree.
Enjoy,
Burt, K6OQK
Burt I
tance of nine inches or so, it beats the pants off my
previous magnifier, Optivisor 10x where I have to have my face less than two
inches from the soldering area.
.. got the microscope from description from W7ZOI web site.
http://w7zoi.net/micscope.html
Ian, G4ICV, AB2GR
Burt I. Weiner Associa
have altered with the setting og J27 - I did not
measure that, there, the software change probably kics in - or not :-)
Erik/
Burt I. Weiner Associates
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s to me
that you could then measure the frequency of the signal of interest
(now an audio frequency, so you can listen to it too) with the TIA
(also getting the GPSDO reference) and then do simple math to arrive
at the actual RF frequency.
Anybody have any thoughts?
Burt I. Weiner Associates
B
about 138 seconds. It then seems to stay stuck
>> at 14.5 volts and only repeats the cycle if I power down,w wait and then
>> power back on.
>>
>> Wayne
Burt I. Weiner Associates
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6050.html
Martin
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ure the list would be very interested!
Don
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how are you monitoring?? I can see some magical 100 KHz rcvr with
alarm/squelch seems to be handy. Not that they exist.
I will guess the SRs700 would relock also but I don't leave that on 24X7.
Regards
Paul
WB8TSL
Burt I. Weiner Associates
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b
: [time-nuts] General Radio frequency standard question
There is a GR group on Yahoo but its pretty quiet.
I joined when I started restoring one of the GR early synthesizers a 1161A,
the a 1115A
oscillator (the one where the dewer got destroyed in shipping).
Burt I. Weiner Associates
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transmitter and receiver.
Burt, K6OQK
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anyone had bad experience noise wise with the APC brand units
like are available on Amazon and at Staples? I'd like to get one that
doesn't generate lots of RFI. Thank you.
Chris
KD4PBJ
Burt I. Weiner Associates
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/ for a recent WWVB project.
See http://www.tinaja.com/glib/WWVBexps.pdf for a vintage project.
/tvb
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is interested. I
don't know if the above offers any input of value, or even how
scientific it is according to deep Time-Nuts standards, but it's what I did.
Burt, K6OQK
Burt I. Weiner Associates
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K6OQK
amplifier?
A cheap and dirty equivalent of a pass thru terminator that I use
is a BNC t
connector with a 52 ohm bnc terminator. I guess you could use a
CATV 75 ohm
F type with an adapter. Maybe that combination would produce too much
garbage.
73,
Bill, WA2DVU
Cape May
Burt I. Weiner
Margaret and I send our best wishes to each and everyone of you for a
Happy Thanksgiving. Be thankful for your family and friends, no
matter how nuts they may appear.
Burt Margaret
Burt I. Weiner Associates
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looked at the on-line manuals available and
I don't find any reference to adjusting the time base
frequency. Does anyone here know anything about these counters? Is
there a schematic available? I'm not looking for precision, but 4.5
Hz at 1 MHz seems a tad much.
Burt, K6OQK
Burt I. Weiner
(house standard) that you can use to
adjust the reference in the counter? See the manual.
Regards,
Tom
From: Burt I. Weiner b...@att.net
I was recently given a HP-5300B / 5308A counter. I thought it might be
handy when I'm at an AM broadcast transmitter and need to make rough
frequency measurements
: Burt I. Weiner b...@att.net
I was recently given a HP-5300B / 5308A counter. I thought it might be
handy when I'm at an AM broadcast transmitter and need to make rough
frequency measurements. It turns out that at 1000 kHz it reads about 4.5
Hz high. Looking inside I'm not sure if there's
is likely still connected.
It sounds like the beast has simply aged further than it's trim range.
Bob
On Nov 1, 2014, at 8:39 PM, Burt I. Weiner b...@att.net wrote:
The closest it will adjust is -2.5 Hz of 10. MHz. This unit
differs from the one in the manual in that it has a Microsonics
anything
that could be blamed on the varactor. What would be a good example of a
TCXO or OCXO model that exhibits EFC hysteresis? I don't immediately
understand what could cause this phenomenon, and I'd like
to reproduce it here to
see what's happening.
-- john, KE5FX
Miles Design LLC
Burt I
| TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
Burt I. Weiner Associates
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K6OQK
the mechanical tuning issue you mentioned is essentially the
same exact problem: even the slightest turn will make the frequency
jump too high or too low. It can drive you (and the loop) crazy
trying to get it on-frequency.
Bye,
Said
Burt I. Weiner Associates
Broadcast Technical Services
Glendale
with that sort of
approximation. Furthermore, all of this would need to happen outside
of the old-school phase tracking receiver, so you'd end up building
your own external phase tracking receiver just to run the old phase
tracking receiver.
Best regards,
Charles
Burt I. Weiner Associates
Broadcast
.
It is presented in a detailed and elegant manner that is certain to
appeal to this reflector's subscribers.
Peter
http://www.aholme.co.uk/GPS/Main.htm
Burt I. Weiner Associates
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Gang,
I had comment a while ago that I was having trouble viewing the
Time-Nuts digests using Eudora 7.x. I'm pleased to report that the
digests are once again coming across properly.
Thanks,
Burt, K6OQK
Burt I. Weiner Associates
Broadcast Technical Services
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b
in server/s was in the process of taking
place. Could my display issue be related to this? I'm using Eudora
7.1 as my e-mail client on a Windows7 32 bit computer and prior to
the date mentioned the digests had displayed normally on this
computer system.
Burt, K6OQK
Burt I. Weiner Associates
of
wire. The antenna is behind a metal rack that shields it in NAAs direction.
Ha! At VLF you could probably bury your antenna in a grounded, steel pipe 4
feet into the ground and still hear NAA.
I
did that test out of curiosity.
I LOVE curious... :-)
Ken W7EKB
Burt I. Weiner Associates
back 154 years in time to
the first recorded and frequency/ time-synchronized recordings made..enjoy
as it is intended or just hit Delete if you think there are faults in
this!
Robert L. (Bob) Burchett
Burt I. Weiner Associates
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b
part --
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Burt I. Weiner Associates
Broadcast
what we usually
discuss here, but if anyone could point me in the right direction
for this schematic, we'd really appreciate it.
?
Many thanks,
?
Bob, N1KPR
Burt I. Weiner Associates
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K6OQK
that it's a HP10811A, it shouln't be too hard.
In general, doing a new A8 board might be an option.
Cheers,
Magnus
Burt I. Weiner Associates
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Gang,
Best wishes to all for good health and much contentment in the New Year.
Burt Margaret
Burt I. Weiner Associates
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Well, I thought it was appropriate for this group. But, what do I
know. I would probably get one except that I don't have a
Thunderbolt. Even so, it was interesting to see the video. Well done, Adam.
Burt, K6OQK
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California
giving me trouble, I broke a big chunk off
a tooth and am now scheduled for a crown at a cost of about $1000, and
my big-screen TV died! :(
Ed
Burt I. Weiner Associates
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www.biwa.cc
K6OQK
for thing like FFTs and
other DSP.
As for development tools, there is no shortage.
We also need some new ideas. So muct SDR software tries to emulate a
1980's radio.
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
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www.biwa.cc
K6OQK
, Mark C. Stephens wrote:
Oh my gosh, a 117A has popped up on eBay!
Looks in pretty good condition given its age...
Seller claims the antenna will be listed shortly!
Item # 281141315740
--marki
Burt I. Weiner Associates
Broadcast Technical Services
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b...@att.net
receiver for the new modulation.
So if its a good price $20 including shipping buy it for a hole filler in
the rack. Or just because you always wanted one.
You have to build the d-psk-r to actually use them. I have 2 117s.
Regards
Paul
WB8TSL
Burt I. Weiner Associates
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as a boogieman by some, to suit
their agendas.
-John
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opposition (out of phase) with the mains supply. Foar
example a 100VA 12V transformer will drop your mains to just under
238V with a maximum load of 8A (the current rating of the secondary).
HTH,
Robert G8RPI.
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A
the wwvb remodulator schematic with this information and most
likely make a real schematic and also build up my own remodulator for use
until I add the remodulator to the d-psk-r to create a single package.
Regards
Paul
WB8TSL
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California
Joseph Gray jg...@zianet.com wrote:
Otherwise you might just as well lock it up instead.
Hmm, a 1970 vintage tube transmitter with a GPSDO frequency lock :-)
Thanks to everyone for the suggestions. I will spend more time with
this
rig and see what works.
Joe Gray
W5JG
Burt I. Weiner Associates
lock it up instead.
Hmm, a 1970 vintage tube transmitter with a GPSDO frequency lock :-)
Thanks to everyone for the suggestions. I will spend more time with
this
rig and see what works.
Joe Gray
W5JG
Burt I. Weiner Associates
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b
the MAS 6180 is available but the distro wants an order of 50 at
$4 each.
I can't take on the role of purchasing and distributing the chips.
Regards
Paul
Burt I. Weiner Associates
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b...@att.net
www.biwa.cc
K6OQK
tunable.
I know that there are many Amateurs on the list and I'm sure
many know more
about old tube rigs than I do. Does anyone have a suggestion as
to what the
trouble might be?
Joe Gray
W5JG
Burt I. Weiner Associates
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b...@att.net
the graphite didn't bring it back to life.
Brian
K3KO
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carefully yet... possibly one might need some
kind of AGC to use it as input to a second double balanced mixer
serving as modulator in order to get the right 14 (?) db AM as signal
fades slowly. Not sure how deep the diurnal fades are...
Burt I. Weiner Associates
Broadcast Technical Services
the AM modulation
from WWVB. So the 8170 does not look at the 60KHz carrier? and only cars
about the time code?
Maybe another way then is to bypasss the radio inside the 8170 and just
send the demodulated logic bit
Burt I. Weiner Associates
Broadcast Technical Services
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the 8170
does not do that.
Burt I. Weiner Associates
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they showed the chip in a 20DIP package.? Is
it available.? It will be dead bug circuitry.
Regards,
Perrier
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. Sweet.
Cost sub $10.
Will chicken scratch a drawing sometime tomorrow and share out. Notes are a
bit messy.
Regards
Paul
WB8TSL
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time
, and the place holder.
Burt, K6OQK
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, it 'killed' my two. The website for the manufacturer of mine (both
SkyScan, cheap from Sam's) stated that there was a problem with WWVB.
I'll keep an eye out for a replacement.
Joe
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as carried in the legacy system
where the duration of the carrier dips corresponds to the ones and
zeros, and the place holder.
Burt, K6OQK
Burt I. Weiner Associates
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, my 8566A RF section pass transistor heat sink gets awfully
warm too, does anyone have a sensible solution?
-marki
Burt I. Weiner Associates
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. But that really is ugly.
Though you end up with those nice clock digits working again. Hey when you
do that send me the old rcvr parts. ;-)
Regards
Paul.
On Thu, Jun 13, 2013 at 12:37 AM, Burt I. Weiner b...@att.net wrote:
Paul,
U... What a revolting development this is. My 9150-52054 have
get time out of it. Its all
about how you sell it.
Regards
Paul
Burt I. Weiner Associates
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. But that non psk time was stopped
about a month ago.
Its pure PSK now as far as I know
On Thu, Jun 13, 2013 at 1:08 PM, Burt I. Weiner b...@att.net wrote:
Paul,
Thanks for the information. Late last night I did a search and found out
about the d-pskr-r - an appropriate name, indeed. I gather
working fine.
Here's a link to the clocks I
have: http://www.junghansusa.com/Category/713_1/Atomic_Clocks.aspx
Really nice clocks for field work.
Burt, K6OQK
I wrote in part...
So now the question is, where do you find clocks that should set with
the new WWVB Format?
Burt, K6OQK
Burt I
wondering if I'm just in a period of time that's receiving a poor
quality signal? It doesn't seem like WWVB's new phase-modulated
format should be causing this kind of a problem.
All observations, opinions and suggestions are welcome.
Thanks,
Burt, K6OQK
Burt I. Weiner Associates
Broadcast
like the
8170.
So the ole 8170 is dead.
You need to build something like the d-psk-r to get it going though I have
not had time to actually add the am phase flipper precisely for the likes
of a 8170. I have one also.
Sorry
Paul
WB8TSL
On Wed, Jun 12, 2013 at 5:35 PM, Burt I. Weiner b
a modification as it now appears, I'm going
to get more of the oscillators from him. I may replace the one in my
other 9390 and for sure will replace internal reference oscillator in
my IFR-1500 Service Monitor.
Burt, K6OQK
Burt I. Weiner Associates
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Glendale, California
to
be pretty close to right on to work.
Burt I. Weiner Associates
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noteworthy.
Any guidance would be appreciated.
Thanks,
Burt
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the GPS receiver module, but it has the following
number on it: TNL 22880-B. I have the schematics for the overall
DATUM 9390-25054, but the GPS module in just a block.
Any guidance would be appreciated.
Thanks,
Burt
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California
schematic is marked, SV6 /
(TANS). I suspect this means something noteworthy.
Any guidance would be appreciated.
Thanks,
Burt
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
b...@att.net
www.biwa.cc
K6OQK
be appreciated.
Thanks,
Burt
Burt I. Weiner Associates
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the picture I
found in a manual from Trimble.
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To answer the original question - Power Design makes some pretty quiet bench
supplies. If you are doing low noise testing, batteries often will let you
get rid of one more ground loop. Even well built power supplies are not as
well line isolated as a battery.
Bob
Burt I. Weiner Associates
designates a North American? (BELL) or European (CCITT) standard
unit, but broadband noise is the same. They can be picked up really
cheaply now (list was$3000-$5000) and make a nice compact audio test set.
Robert G8RPI.
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California
:01 PM, Burt I. Weiner b...@att.net wrote:
Paul,
I just went out to my shoppe and looked. Mine is locked and has been for
most of the day, with two green lights. Some time ago I added a meter to
the front panel that I connected to one of the test points. It's currently
fairly steady except
in an
external standard, it would still be useful for the phase comparator. At
the
listed prices, they can keep them.
Joe Gray
W5JG
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
b...@att.net
www.biwa.cc
K6OQK
gotten the cleanest
signal - found that out when we re-roofed the house.
Burt, K6OQK
From: paul swed paulsw...@gmail.com
Subject: Re: [time-nuts] Used Spectracom
Quite odd my 8170 absolutely will not lock
On Wed, Jan 16, 2013 at 3:33 PM, Burt I. Weiner b...@att.net wrote:
I'm not sure
the relative effect on the sidebands.
Ed
Burt I. Weiner Associates
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on the sidebands.
Ed
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for another oscillator module. I've got a call into
Vectron, but so far, no return call from them.
All suggestions are appreciated.
Thanks,
Burt, K6OQK
Burt I. Weiner Associates
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amount of filtering - you may need quite a
bit of C to swamp it out and show a noticeable effect. You're not
looking for necessarily normal or perfectly-settled operation under
the test condition, just the relative effect on the sidebands.
Ed
Burt I. Weiner Associates
Broadcast Technical
Excuse me for asking... Can anyone tell me what time the world is
supposed to come to an end tomorrow? We have a lot of shopping to do
and thought it would be nice to be home and watch it on happen on TV.
Thanks,
Burt, K6OQK
Burt I. Weiner Associates
Broadcast Technical Services
Glendale
configuration, 10MHz on J7. Hope this helps.
Paul - K9MR
On Dec 15, 2012, at 4:21 PM, Burt I. Weiner wrote:
Gang,
Does anyone have a DATUM 9390 series GPS receiver that can tell me
what the (50 Ohm) terminated output level of the 10 MHz spigot
is. One of mine started spurring and the other one
Gang,
Does anyone have a DATUM 9390 series GPS receiver that can tell me
what the (50 Ohm) terminated output level of the 10 MHz spigot
is. One of mine started spurring and the other one is clean, but
seems way to high in output level.
Thanks,
Burt, K6OQK
Burt I. Weiner Associates
To: time-nuts@febo.com
Subject: Re: [time-nuts] WWVB new modulation...
On 11/23/12 8:28 AM, Burt I. Weiner wrote:
I still have two of the Heathkit clocks, but alas, they won't work at
home because of my standards.
Burt, K6OQK
Are your equipment and interconnects leaking that badly?
Burt I. Weiner
advantages to merit the production of commercial equipment
to use it, and ultimately whether low-cost equipment will be
sufficiently advantageous to merit its design and production in volume
like the typical WWVB digital clocks prevalent today.
Burt I. Weiner Associates
Broadcast Technical Services
if you look at the WWVB signal with a wider bandwidth it might be
interesting. I really need to take the WWVB loop off of my
Symetricom 8170 and hook it to my 3586B SLM and see for myself.
For what it's worth,
Burt, K6OQK
Burt I. Weiner Associates
Broadcast Technical Services
Glendale
antenna for 5 MW EIRP will always
produce some third harmonic near the antenna. There was no access to GPS
within 1 km of the site.
They were using the WWVB signal as the time and frequency reference.
Luckily, the conversion the DTV moved them to a new channel and now they can
use the GPS.
Tom
Burt I
George,
You don't know from messy. Trust me.
Burt, K6OQK
At 08:31 AM 9/28/2012, time-nuts-requ...@febo.com wrote
Picture of the messy work bench below!
http://www.mrrace.com/TrimbleGPS/TestEquipment.jpg
Comments and suggestion are always welcomed,
George
Burt I. Weiner Associates
Interference...
Hi Burt,
This sounds familiar! It wasn't a guy called Rich Bailey was it? That's what
he suggested I do, but I got onto Trimble and got one of their Bullet
antennae with the 3 pole filter (Bullet III?).
That worked for us.
Rob
Burt I. Weiner Associates
Broadcast Technical Services
officially recognize GPS as, at least an alternate, U.S.
Frequency Standard? Have I missed something?
Thanks,
Burt, K6OQK
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
b...@att.net
www.biwa.cc
K6OQK
___
time
WWVB format...
See:
http://www.nist.gov/calibrations/upload/1424.pdf
Re. GPS traceable to NIST.
- Original Message -
From: Burt I. Weiner b...@att.net
To: time-nuts@febo.com
Sent: Wednesday, September 26, 2012 11:49 AM
Subject: [time-nuts] New WWVB format...
I'm sure most
/08_august/C-%20mast/C-mast%208b.JPG
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
b...@att.net
www.biwa.cc
K6OQK
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find it's way down into the edge connector and even onto the
motherboard in severe cases.
Not nice !!
Nigel
GM8PZR
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
b...@att.net
www.biwa.cc
K6OQK
___
time-nuts
Are any of you familiar with the Beethoven
test? This alone makes the price
of the instrument worth it.
No, what is the Beethoven test?
-Eric
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
b...@att.net
www.biwa.cc
K6OQK
...@febo.com] On
Behalf Of Burt I. Weiner
Sent: Monday, July 30, 2012 4:03 PM
To: time-nuts@febo.com
Subject: [time-nuts] HP-3586x Beethoven Test...
Somehow I was hoping someone might ask.
The following was sent to me by Stu, K6YAZ. If
you are not familiar with this HP-3586x test, you
should acquaint
To: time-nuts@febo.com
Subject: [time-nuts] HP 117/10509a
Hello,
Has anyone successfully replaces the Nuvistors in the 117 and the 10509a
with FETs. I would like to replace them with inexpensive FETs instead of
buying the expensive Nunistors.
Thanks for all help,
Merchison
Burt I. Weiner Associates
A friend of mine, Marv, W6OQI has a HP-3336B with a failed power
supply. He and I both have manuals but they show the wrong power
supply schematic and parts layout. What he needs is a rev E power
supply schematic and parts layout. Can anyone help?
Burt, K6OQK
Burt I. Weiner Associates
Kimberley
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
b...@att.net
www.biwa.cc
K6OQK
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fumes and chemicals that come from the vent
pipe. Remember, the vent is open to the sewer, its purpose
is to prevent pressure build up in the sewer from blowing
(or sucking) the water out of the various traps and letting
sewer gas into the house.
Burt I. Weiner Associates
Broadcast Technical
Hopefully someone out there has a stash of what I'm looking for. I
need 4 ea IC type CA3130E. Need this specific number. It's an 8 pin
DIP. I've tried DigiKey and Mouser. No luck.
Thanks,
Burt, K6OQK
Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
b
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