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Date
Info needed

 

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Hello!

Would someone,please, tell me if the US company

INERTIAL MOTORS CORP.?is still in business.

I have two different addresses, but I couldn't get in touch

from Brazil by telephone:

-272 Main Avenue- NORWALK - CONN 06851

Telephone: (203) 847-5861

-280 North Broad St. - DOYLESTON - PA 18901

Telephone: (215) 345-1010


Thanks in advance,

Antonio/CT1TE.
Re: need Bill West switches

Tom Miller
 

?
There are millions of those switches just waiting to be harvested from parts units. Where are you located? I can send you a few.
?
Regards
Tom
?
?

----- Original Message -----
Sent: Tuesday, October 24, 2017 1:43 AM
Subject: [hp_agilent_equipment] need Bill West switches

?

I have a 3562A that I am resurrecting, got most of the card faults done, but 4 of the "soft" switches on the side of the display are broken off.


Mostly its the center pin on the red holder, contact and springs are present. I have the tiny pieces to try and reassemble two of them, but the rest of the broken off and have gone away previously.


Or if anyone has any idea as to how to fabricate a new center pin....? :-)


thanks

Alan
need Bill West switches

 

I have a 3562A that I am resurrecting, got most of the card faults done, but 4 of the "soft" switches on the side of the display are broken off.


Mostly its the center pin on the red holder, contact and springs are present. I have the tiny pieces to try and reassemble two of them, but the rest of the broken off and have gone away previously.


Or if anyone has any idea as to how to fabricate a new center pin....? :-)


thanks

Alan
Re: 53131A, 53132A, 53181A Extra Channel option upgrade/downgrade

 

Hi again,

I've updated my 53132A to version 4613 software to see if that would give me a divide by 512 count, but that had no effect. I've also?changed the?10MHz reference otbcode0,1 pins to see if you need to have a high stab source to get the divide by 512 and I still only get divide by 128?as has been stated by others in this thread who have tried the mod.


So I suspect there are other bytes that need changing in the eeprom to enable the divide by 512, not just those currently identified in this thread. At the moment those 3 bytes can have any value and I still only get divide by 128 with ch3code0 tied to gnd. ch3code1 has no effect.


It's either there are other bytes involved, there is something more required on the??main board, or when I initially did this change and corrupted my eeprom I lost some critical data.


So if anyone who has either done this mod and it worked or has an eeprom image they can upload to the files section or send to me?I would appreciate it, then at least I'll know if I lost some data or if there are other bytes involved.


Thanks

Greg

dlrn36 @ yahoo.com.au
Re: 8340A Fault - ADC

 

I read the broken A27 schematic, some ADC sub blocks are overlay on top of other -- what a mess!!!
However some blocks are readable. If I have the instrument, I would first check the ADC clock generator U6B and particular the RC feedback network C32 and R21. Don't know what type of cap C32 is. If it's a electrolytic, it may just be leaking causing it not to oscillate therefore no clock to ADC.

Calvin


On Monday, October 23, 2017, 12:21:27 PM PDT, Tobias Pluess tobias.pluess@... [hp_agilent_equipment] wrote:


?

Hi Calvin

unfortunately, I've got no 8340 to offer. However, I have a large collection of old and obsolete ICs.
If you tell me what you need, I can have a look.
The 7533 is available from Maxim, the other parts I don't know whether I can find one.
I can have a look tomorrow :-)
However, I would first try some more debugging to see whether the fault is somewhere else, and not in the ADCs.


Tobias


-------- Original message --------
From: "Calvin Guan guancalvin@... [hp_agilent_equipment]"
Date: 10/23/17 21:09 (GMT+01:00)
To: hp_agilent_equipment@...
Subject: Re: [hp_agilent_equipment] Re: 8340A Fault - ADC

?

You guys are awesome!!!
I will carefully read the ADC's datasheet to see if there is any viable substitute for it. My repair stories so far is always in RF and pure analog path. This is certainly a challenge for me given that the part is not readily available. I'll see if I can negotiate a good price with the seller that worth the trouble.

What is the fair price you would offer for a non-defective 8340 if you guys don't mind...

Thanks again!
Calvin

On Monday, October 23, 2017, 4:52:01 AM PDT, lexternegron@... [hp_agilent_equipment] wrote:


?

Hello Tobias,


Oops. (facepalms) and I was looking at your post too! (facepalms harder). Confused your post with Tam Hanna. XD That'll do as a replacement. As for the ADC, I concur about availability. I'll have to check later on. The data book posted should be useful in knowing electrical characteristics. As for physical ones, you may have to get creative while looking for a size flexible replacement. Maybe on some of the electrical characteristics as well.

-Lex
Re: Distribution divider/amplifier for 10MHz GPSDO

 

开云体育

I can vouch for the Demi distribution amps. I have four of them feeding all the test equipment in my shop and they’ve worked flawlessly for several years now.?

Steve
WB0DBS



On Oct 23, 2017, at 6:32 PM, 'Leon Vogt' leevogt@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:

?

Rich:

I just checked out The Demi Distribution amp you recommended to use on my ?Leo Bodnar GPS Disciplined Oscillator as it outputs only two software adjustable channels from 450 Hz to 800 MHz – I will be using one 10MHZ output to precision time multiple sync inputs - and this D.A. Looked ideal.

Unfortunately the vendor is sold out and is quoting ?seven week ?unavailability.

This looks like an excellent product from the specs and I have marked my calendar.

Thank you for the heads up.

Lee
Re: Distribution divider/amplifier for 10MHz GPSDO

 

开云体育

Rich:

I just checked out The Demi Distribution amp you recommended to use on my ?Leo Bodnar GPS Disciplined Oscillator as it outputs only two software adjustable channels from 450 Hz to 800 MHz – I will be using one 10MHZ output to precision time multiple sync inputs - and this D.A. Looked ideal.

Unfortunately the vendor is sold out and is quoting ?seven week ?unavailability.

This looks like an excellent product from the specs and I have marked my calendar.

Thank you for the heads up.

Lee
New file uploaded to hp_agilent_equipment

[email protected]
 

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the hp_agilent_equipment
group.

File : /Omni-Spectra Semi-Rigid Tooling/ENG_SS_408-8677_C.pdf
Uploaded by : danaz.chandler <djn@...>
Description :

You can access this file at the URL:


To learn more about file sharing for your group, please visit:


Regards,

danaz.chandler <djn@...>
New file uploaded to hp_agilent_equipment

[email protected]
 

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the hp_agilent_equipment
group.

File : /Omni-Spectra Semi-Rigid Tooling/ENG_SS_408-6788_M.pdf
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Description :

You can access this file at the URL:


To learn more about file sharing for your group, please visit:


Regards,

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New file uploaded to hp_agilent_equipment

[email protected]
 

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the hp_agilent_equipment
group.

File : /Omni-Spectra Semi-Rigid Tooling/ENG_SS_408-4833_O.pdf
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Description :

You can access this file at the URL:


To learn more about file sharing for your group, please visit:


Regards,

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New file uploaded to hp_agilent_equipment

[email protected]
 

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the hp_agilent_equipment
group.

File : /Omni-Spectra Semi-Rigid Tooling/ENG_SS_408-4768_O.pdf
Uploaded by : danaz.chandler <djn@...>
Description :

You can access this file at the URL:


To learn more about file sharing for your group, please visit:


Regards,

danaz.chandler <djn@...>
New file uploaded to hp_agilent_equipment

[email protected]
 

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the hp_agilent_equipment
group.

File : /Omni-Spectra Semi-Rigid Tooling/ENG_SS_408-4767_A.pdf
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Description :

You can access this file at the URL:


To learn more about file sharing for your group, please visit:


Regards,

danaz.chandler <djn@...>
New file uploaded to hp_agilent_equipment

[email protected]
 

Hello,

This email message is a notification to let you know that
a file has been uploaded to the Files area of the hp_agilent_equipment
group.

File : /Omni-Spectra Semi-Rigid Tooling/ENG_SS_408-4761_B.pdf
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Description :

You can access this file at the URL:


To learn more about file sharing for your group, please visit:


Regards,

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New file uploaded to hp_agilent_equipment

[email protected]
 

Hello,

This email message is a notification to let you know that
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Re: Distribution divider/amplifier for 10MHz GPSDO

 

I have had good luck with DEMI, Distribution Amp. Available assembled or in kit. Runs my HP Equipment just fine. Tnx Rich KQ6EF
Re: OT Omni Spectra Semi-Rigid Tools

 

Jim,

I, too, would be interested in a copy of your spreadsheet.

I have a T-200/500 kit and have been trying to obtain a copy of the general instructions for the kit for some time.? I believe the TYCO P/N for these instructions is 408-8677.? I tried to order a copy of this document from the company, but have had no response.? I reordered on 2/6/15, but still no response.

Nevertheless, I was able to download the instructions for specific individual connectors from their website.

The T-200/500 kit is for installation of OSM (SMA) connectors on 0.085-inch and 0.141-inch cables.

Bruce, KG6OJI
Re: 8340A Fault - ADC

 

开云体育

Hi,

if the 5018 is needed, I have some pulls here in good condition.

Regards, Jochen DH6FAZ


Am 23.10.2017 um 21:21 schrieb Tobias Pluess tobias.pluess@... [hp_agilent_equipment]:

???

Hi Calvin

unfortunately, I've got no 8340 to offer. However, I have a large collection of old and obsolete ICs.
If you tell me what you need, I can have a look.
The 7533 is available from Maxim, the other parts I don't know whether I can find one.
I can have a look tomorrow :-)
However, I would first try some more debugging to see whether the fault is somewhere else, and not in the ADCs.


Tobias


-------- Original message --------
From: "Calvin Guan guancalvin@... [hp_agilent_equipment]"
Date: 10/23/17 21:09 (GMT+01:00)
Subject: Re: [hp_agilent_equipment] Re: 8340A Fault - ADC

???
You guys are awesome!!!
I will carefully read the ADC's datasheet to see if there is any viable substitute for it. My repair stories so far is always in RF and pure analog path. This is certainly a challenge for me given that the part is not readily available. I'll see if I can negotiate a good price with the seller that worth the trouble.

What is the fair price you would offer for a non-defective 8340 if you guys don't mind...

Thanks again!
Calvin

On Monday, October 23, 2017, 4:52:01 AM PDT, lexternegron@... [hp_agilent_equipment] wrote:


???

Hello Tobias,


Oops. (facepalms) and I was looking at your post too! (facepalms harder). Confused your post with Tam Hanna. XD That'll do as a replacement. As for the ADC, I concur about availability. I'll have to check later on. The data book posted should be useful in knowing electrical characteristics. As for physical ones, you may have to get creative while looking for a size flexible replacement. Maybe on some of the electrical characteristics as well.

-Lex
Re: Distribution divider/amplifier for 10MHz GPSDO

 

We used these at the TV stations that I worked for.
The inputs "loop through".
There is only one output from the amplifier, it goes to eight BNC connectors with a 75 Ohm isolating resistor between the output amplifier and each of the six output connector.
The dual power supplies provide power redundancy, the frame properly operate on one supply.
You can adjust the gain on each module.
Other amplifier modules allow you to adjust the "tilt" of the signal to compensate for long coax runs.
The modules are hot swapable.
These were very reliable and the only problems I had were power supply capacitors.

Glenn

On 10/23/2017 3:08 PM, Dennis Czelusniak czelusniakd@... [hp_agilent_equipment] wrote:
I use GRASS VALLEY GROUP VIDEO DISTRIBUTION AMP. There are a variety of plugins available for these units. I use 8500-8501 with excellent results. I find most test equipment will massage it's input REF so something not symmetrical will suffice. Watch ebay, they come up cheap. The home TV distribution amps are what I shovel out of the barn on a daily basis. There is one fully loaded for $30. with the 8501 cards, eBay item number:182839360311 exactly what I use.

Dennis



--------------------------------------------
On Mon, 10/23/17, Gedas w8bya@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:

Subject: Re: [hp_agilent_equipment] Distribution divider/amplifier for 10MHz GPSDO
To: hp_agilent_equipment@...
Date: Monday, October 23, 2017, 2:07 PM
Be careful with the amplifier you
pick up. Early
on I had the same idea and bought a cheap Asian unit
and found
out that it only had enough BW for a 6-7 MHz B/W
video signal.
Another thing to consider is if your output source
is analog or
digital. My GPS based unit provides a nice sine wave
so it's
requirements are a lot less strict than if a square
wave signal
was being used.
Gedas, W8BYA
Gallery at
Light travels faster than sound....
This is why some people appear bright until you hear them
speak.
On 10/23/2017
12:50 PM, Dave Casey
polara413@...
[hp_agilent_equipment] wrote:
I have heard that a popular solution is
to use
inexpensive video distribution amplifiers
after changing
the terminations from 75 to 50 ohms. This is
what I was
planning to do as well.
Dave Casey
On Mon,
Oct 23, 2017 at 11:43 AM,
'Paul Bicknell' paul@...
[hp_agilent_equipment] <hp_agilent_equipment@...>
wrote:
Hi
Regarding
ddistribution
divider/amplifier for 10
MHz in the
past I have talked to
others on this
subject and the
consensus was
that the
frequency response of the
amplifier must be grater
than 10 times
?that of the reference
frequency to
prevent distortion and lag
we ended up using
transistors that where
good for
450 MHz for a 10 MHz
reference
regards Paul
B
From:
hp_agilent_equipment@
yahoogroups.com
[mailto:hp_agilent_equipment@
yahoogroups.com]
Sent:
23 October 2017 13:39
To:
hp_agilent_equipment@
yahoogroups.com
Subject:
[hp_agilent_equipment]
Distribution
divider/amplifier for
10MHz
GPSDO
Hello
group. I`m intending
to
distribute, via 50
Ohm coax,
frequency reference
signals to my test
equipment in
my test bay [no
relation to
eBay, except that
most of the
equipment came from
there]. I`ll be
using RG58/U
coax, and 50 ohm
terminations, with
the highest
reasonable signal
level
reticulated. Given
that
the name of the game
seems to be
to avoid any severe
reduction in
SNR of the
10MHz signal comming
out of the
GPSDO, by the logic
dividers,
and impedance
lowering buffer
amplifiers, what
considerations
should be made
regarding the
choice of logic
families, and
transistors to be
used? The
frequencies required
by the test
equipment vary from
500kHz to 10MHz, and
amplitudes
from 100mV P-P
sinewave, to 5V peak
squarewave.
How good must the
PSU be to stop
the rot
getting worse, and
is 1/f noise
in the active
devices important?
Your thoughts
will be
appreciated.
P.S.:
How
accurate is the
Trimble
Thunderbolt for this
application?.................. ............................
Thankyou,............Don
Collie.
No virus found in
this message.
Checked by AVG - www.avg.com
Version: 2016.0.8013 /
Virus Database:
4782/15063 - Release Date:
10/23/17


------------------------------------
Posted by: Dennis Czelusniak <czelusniakd@...>
------------------------------------


------------------------------------

Yahoo Groups Links



--
-----------------------------------------------------------------------
Glenn Little ETCS(SS) USN Ret, ARRL Technical Specialist, SBE ARRL TAPR
Amateur Callsign: WB4UIV wb4uiv@... AMSAT LM 2178
QTH: Goose Creek, SC USA (EM92xx) USSVI, FRA, NRA LM QCWA LM 28417
"It is not the class of license that the Amateur holds but the class
of the Amateur that holds the license"
---------------------------------------------------------------------------
Re: 8340A Fault - ADC

 

开云体育

Hi Calvin
unfortunately, I've got no 8340 to offer. However, I have a large collection of old and obsolete ICs.
If you tell me what you need, I can have a look.
The 7533 is available from Maxim, the other parts I don't know whether I can find one.
I can have a look tomorrow :-)
However, I would first try some more debugging to see whether the fault is somewhere else, and not in the ADCs.


Tobias


-------- Original message --------
From: "Calvin Guan guancalvin@... [hp_agilent_equipment]"
Date: 10/23/17 21:09 (GMT+01:00)
To: hp_agilent_equipment@...
Subject: Re: [hp_agilent_equipment] Re: 8340A Fault - ADC

?

You guys are awesome!!!
I will carefully read the ADC's datasheet to see if there is any viable substitute for it. My repair stories so far is always in RF and pure analog path. This is certainly a challenge for me given that the part is not readily available. I'll see if I can negotiate a good price with the seller that worth the trouble.

What is the fair price you would offer for a non-defective 8340 if you guys don't mind...

Thanks again!
Calvin

On Monday, October 23, 2017, 4:52:01 AM PDT, lexternegron@... [hp_agilent_equipment] wrote:


?

Hello Tobias,


Oops. (facepalms) and I was looking at your post too! (facepalms harder). Confused your post with Tam Hanna. XD That'll do as a replacement. As for the ADC, I concur about availability. I'll have to check later on. The data book posted should be useful in knowing electrical characteristics. As for physical ones, you may have to get creative while looking for a size flexible replacement. Maybe on some of the electrical characteristics as well.

-Lex
Re: Distribution divider/amplifier for 10MHz GPSDO

 

I use GRASS VALLEY GROUP VIDEO DISTRIBUTION AMP. There are a variety of plugins available for these units. I use 8500-8501 with excellent results. I find most test equipment will massage it's input REF so something not symmetrical will suffice. Watch ebay, they come up cheap. The home TV distribution amps are what I shovel out of the barn on a daily basis. There is one fully loaded for $30. with the 8501 cards, eBay item number:182839360311 exactly what I use.

Dennis



--------------------------------------------

On Mon, 10/23/17, Gedas w8bya@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:

Subject: Re: [hp_agilent_equipment] Distribution divider/amplifier for 10MHz GPSDO
To: hp_agilent_equipment@...
Date: Monday, October 23, 2017, 2:07 PM

Be careful with the amplifier you
pick up. Early
on I had the same idea and bought a cheap Asian unit
and found
out that it only had enough BW for a 6-7 MHz B/W
video signal.
Another thing to consider is if your output source
is analog or
digital. My GPS based unit provides a nice sine wave
so it's
requirements are a lot less strict than if a square
wave signal
was being used.


Gedas, W8BYA

Gallery at
Light travels faster than sound....
This is why some people appear bright until you hear them
speak.
On 10/23/2017
12:50 PM, Dave Casey
polara413@...
[hp_agilent_equipment] wrote:


?



I have heard that a popular solution is
to use
inexpensive video distribution amplifiers
after changing
the terminations from 75 to 50 ohms. This is
what I was
planning to do as well.



Dave Casey



On Mon,
Oct 23, 2017 at 11:43 AM,
'Paul Bicknell' paul@...
[hp_agilent_equipment] <hp_agilent_equipment@...>
wrote:



?






Hi

Regarding
ddistribution
divider/amplifier for 10
MHz in the
past I have talked to
others on this
subject and the

consensus was
that the
frequency response of the
amplifier must be grater
than 10 times
?that of the reference
frequency to
prevent distortion and lag

we ended up using
transistors that where
good for
450 MHz for a 10 MHz
reference
?

regards Paul
B



From:
hp_agilent_equipment@
yahoogroups.com
[mailto:hp_agilent_equipment@
yahoogroups.com]


Sent:
23 October 2017 13:39

To:
hp_agilent_equipment@
yahoogroups.com

Subject:
[hp_agilent_equipment]
Distribution
divider/amplifier for
10MHz
GPSDO

?
?




Hello
group. I`m intending
to
distribute, via 50
Ohm coax,
frequency reference
signals to my test
equipment in
my test bay [no
relation to
eBay, except that
most of the
equipment came from
there]. I`ll be
using RG58/U
coax, and 50 ohm
terminations, with
the highest
reasonable signal
level
reticulated. Given
that
the name of the game
seems to be
to avoid any severe
reduction in
SNR of the
10MHz signal comming
out of the
GPSDO, by the logic
dividers,
and impedance
lowering buffer
amplifiers, what
considerations
should be made
regarding the
choice of logic
families, and
transistors to be
used? The
frequencies required
by the test
equipment vary from
500kHz to 10MHz, and
amplitudes
from 100mV P-P
sinewave, to 5V peak
squarewave.
How good must the
PSU be to stop
the rot
getting worse, and
is 1/f noise
in the active
devices important?
Your thoughts
will be
appreciated.
P.S.:
How
accurate is the
Trimble
Thunderbolt for this

application?.................. ............................
Thankyou,............Don

Collie.

No virus found in
this message.

Checked by AVG - www.avg.com

Version: 2016.0.8013 /
Virus Database:
4782/15063 - Release Date:
10/23/17
64441 - 64460 of 150913