From: [email protected] <[email protected]> On Behalf Of Matt Corbett via Groups.Io
Sent: Wednesday, September 4, 2019 12:48 AM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Off-topic: Language

?

I was in a meeting once, where a Japanese company was negotiating a business deal with an American company.? The Japanese company was represented by a group of Japanese executives and lowly me.? The American company was represented by a group of American executives.

It didn't occur to me at the time, but a couple of the Americans were using some metaphors, figures of speech and slang during their presentations.? In private, after the meeting was over, the Japanese participants approached me with a list of words and phrases that they had recorded and did not understand.? They had been much too polite to interrupt the Americans for clarifications, and now wanted me to explain concepts such as: "What is 'a horse of a different color'?"

Sometimes, it's best to communicate in formal English, without any added cultural flavoring!??:-)

Hi All!

I have been seeing a small device rolling through the Microwave drawer for more than two decades. I am truly eager to know what it is. A frequency multiplier ?, a harmonic mixer? .... Humm No idea.
I enclose some photos and data that appear on your body in case any friend knows you and can tell me something about it.
I haven't found anything on the Web either. I do not have Omnispectra catalog.
Brand: Omnispectra
Model: 20300
Freq. : 0.5-18Ghz
Bias: .75
The output connector: SSMA female
The other connector is a male SMA


Thanks in advance.

73's

EA7HWX
Rafael

<040920191321.jpg>

<040920191324.jpg>

<040920191322.jpg>

?

Hi All,

I am looking for a replacement Cal Factor knob for the above meter.
Mine has been damaged while in storage.
UK source would be appreciated.

thanks...........Stuart

While I appreciate the credit, it wasn't my fix. I just posted the link.

As to a source of material to make your own, you can get a nice assortment
handily packaged for $4-5. Here's just one example:


I haven't measured the fingers, but I think 4-5 thousandths is about right.

Paul

On Wed, Sep 04, 2019 at 02:04:26PM +0200, johnlegros wrote:

Hello , the link to Paul's fix is great help , exactly same issu I have with
the switch !!

this was bad design...

thanks


Le 04/09/2019 à 03:59, Brian a écrit?:

Hello Dan,

Thanks for keeping Paul’s description of his repair work.

And Paul, Great job. Clearly, you have the patience of a saint. I get you
on the skills transfer from motor vehicle repairs to HP switches – when I
did my elec eng degree, I was the ‘go-to’ guy for motor vehicle power
train repairs.

This evening, I have a friend’s HP-8640B coming to me for servicing, and I
suspect some of the switch fingers will be missing. When I get that far
into the diagnosis, I’ll be looking for help.

73 de Brian, VK2GCE.

*On*Wednesday, 4 September 2019 10:39 AM, Dan said:

Hi John,

?Some time ago (2 years or more?) I repaired one of these contact fingers
*in-situ*, without taking the instrument apart.? I posted pictures in one
of the photo albums.? Look back through the messages with my name in
them.? You might get lucky if you find the finger and can manipulate it
well enough to epoxy it back into place.

Dan

On Tuesday, September 3, 2019, 07:32:13 PM EDT, Paul Amaranth
<paul@...> wrote:

This is a really common problem.? Generally, the contacts fall off
somewhere inside
the unit, but they may go missing.? You can fabricate some from suitable
shim stock.
Here's one person who did that:



It's a bit of a ways down.? I'm not sure what the original material was
(stainless? a
nickel alloy?) but given the age of the equipment and the use it will
likely get, I don't
think it would matter a lot.? I think some have made up contacts from a
piece of stainless
steel feeler gauges (like you would use in auto repair).

good luck

On Tue, Sep 03, 2019 at 02:56:08PM -0700, johnlegros wrote:

hello , have a nice working spectrum 8558b with electron beam memory ,

all is correct have checked , but the issue the time division switch does
not work , in auto mode, , opened it and found a missing part in the
switch , from the service manual sent with this spectrum analyser from new
only 40 years ago part number is 5061-5425 pronger switch , it is the
metal leaf part which is missing , checked and did not find it anywhere ,
so question is does anyone have or make these ? thanks

--
Paul Amaranth, GCIH? ? ? ? ? ? | Manchester MI, USA
Aurora Group of Michigan, LLC? |? Security, Systems & Software
paul@... <mailto:paul@...> ? ? ? ? |? Unix & Windows

!DSPAM:5d6fa85b228901465018402!

From: "Gedas" <w8bya@...>
To: [email protected]
Sent: Wednesday, September 4, 2019 9:32:41 AM
Subject: [HP-Agilent-Keysight-equipment] Finger Stock - spectrum HP 8558b good but missing part

Not sure if this will help you or others but I have several NOS in
sealed bags 300" lengths of Tech-Etch finger stock, 187P28-300-09

A PDF that describes the physical dimensions of the fingers is in the
following document although the coating of mine with be different. I
have the -09 coating which is a shiny nickel (I think) vs bare copper
etc. The last two digits describe the coating etc. If you need some
contact me off line.



Gedas, W8BYA

Gallery at
Light travels faster than sound....
This is why some people appear bright until you hear them speak.

On 9/4/2019 12:10 AM, Greg Muir via Groups.Io wrote:

Exact replacement finger stock in strip form:

Tech Etch part number 75RE


The problem is obtaining it in small quantities.? They only normally
stock it in the the Beryllium copper material.? Stainless steel is a
special order.

Greg

Exact replacement finger stock in strip form:

Tech Etch part number 75RE

The problem is obtaining it in small quantities.? They only normally stock it in the the Beryllium copper material.? Stainless steel is a special order.

Greg

Hello , the link to Paul's fix is great help , exactly same issu I have with
the switch !!

this was bad design...

thanks


Le 04/09/2019 à 03:59, Brian a écrit?:

Hello Dan,

Thanks for keeping Paul’s description of his repair work.

And Paul, Great job. Clearly, you have the patience of a saint. I get you
on the skills transfer from motor vehicle repairs to HP switches – when I
did my elec eng degree, I was the ‘go-to’ guy for motor vehicle power
train repairs.

This evening, I have a friend’s HP-8640B coming to me for servicing, and I
suspect some of the switch fingers will be missing. When I get that far
into the diagnosis, I’ll be looking for help.

73 de Brian, VK2GCE.

*On*Wednesday, 4 September 2019 10:39 AM, Dan said:

Hi John,

?Some time ago (2 years or more?) I repaired one of these contact fingers
*in-situ*, without taking the instrument apart.? I posted pictures in one
of the photo albums.? Look back through the messages with my name in
them.? You might get lucky if you find the finger and can manipulate it
well enough to epoxy it back into place.

Dan

On Tuesday, September 3, 2019, 07:32:13 PM EDT, Paul Amaranth
<paul@...> wrote:

This is a really common problem.? Generally, the contacts fall off
somewhere inside
the unit, but they may go missing.? You can fabricate some from suitable
shim stock.
Here's one person who did that:



It's a bit of a ways down.? I'm not sure what the original material was
(stainless? a
nickel alloy?) but given the age of the equipment and the use it will
likely get, I don't
think it would matter a lot.? I think some have made up contacts from a
piece of stainless
steel feeler gauges (like you would use in auto repair).

good luck

On Tue, Sep 03, 2019 at 02:56:08PM -0700, johnlegros wrote:

hello , have a nice working spectrum 8558b with electron beam memory ,

all is correct have checked , but the issue the time division switch does
not work , in auto mode, , opened it and found a missing part in the
switch , from the service manual sent with this spectrum analyser from new
only 40 years ago part number is 5061-5425 pronger switch , it is the
metal leaf part which is missing , checked and did not find it anywhere ,
so question is does anyone have or make these ? thanks

--
Paul Amaranth, GCIH? ? ? ? ? ? | Manchester MI, USA
Aurora Group of Michigan, LLC? |? Security, Systems & Software
paul@... <mailto:paul@...> ? ? ? ? |? Unix & Windows

!DSPAM:5d6fa85b228901465018402!

Hello Dan,

?

Thanks for keeping Paul’s description of his repair work.

?

And Paul, Great job. Clearly, you have the patience of a saint. I get you on the skills transfer from motor vehicle repairs to HP switches – when I did my elec eng degree, I was the ‘go-to’ guy for motor vehicle power train repairs.

?

This evening, I have a friend’s HP-8640B coming to me for servicing, and I suspect some of the switch fingers will be missing. When I get that far into the diagnosis, I’ll be looking for help.

?

73 de Brian, VK2GCE.

?

On Wednesday, 4 September 2019 10:39 AM, Dan said:

?

Hi John,

?

? ?Some time ago (2 years or more?) I repaired one of these contact fingers *in-situ*, without taking the instrument apart.? I posted pictures in one of the photo albums.? Look back through the messages with my name in them.? You might get lucky if you find the finger and can manipulate it well enough to epoxy it back into place.

?

Dan

?

?

On Tuesday, September 3, 2019, 07:32:13 PM EDT, Paul Amaranth <paul@...> wrote:

?

?

This is a really common problem.? Generally, the contacts fall off somewhere inside
the unit, but they may go missing.? You can fabricate some from suitable shim stock.
Here's one person who did that:



It's a bit of a ways down.? I'm not sure what the original material was (stainless? a
nickel alloy?) but given the age of the equipment and the use it will likely get, I don't
think it would matter a lot.? I think some have made up contacts from a piece of stainless
steel feeler gauges (like you would use in auto repair).

good luck

On Tue, Sep 03, 2019 at 02:56:08PM -0700, johnlegros wrote:
> hello , have a nice working spectrum 8558b with electron beam memory? , all is correct have checked , but the issue the time division switch does not work , in auto mode, , opened it and found a missing part in the switch , from the service manual sent with this spectrum analyser from new only 40 years ago part number is 5061-5425 pronger switch , it is the metal leaf part which is missing , checked and did not find it anywhere , so question is does anyone have or make these ? thanks
>
>
>
>
>
> !DSPAM:5d6ee55b212076544458839!

--
Paul Amaranth, GCIH? ? ? ? ? ? | Manchester MI, USA
Aurora Group of Michigan, LLC? |? Security, Systems & Software
paul@...? ? ? ? ? ? ? |? Unix & Windows? ? ? ? ? ? ?

Hello Dan,

?

Thanks for keeping Paul’s description of his repair work.

?

And Paul, Great job. Clearly, you have the patience of a saint. I get you on the skills transfer from motor vehicle repairs to HP switches – when I did my elec eng degree, I was the ‘go-to’ guy for motor vehicle power train repairs.

?

This evening, I have a friend’s HP-8640B coming to me for servicing, and I suspect some of the switch fingers will be missing. When I get that far into the diagnosis, I’ll be looking for help.

?

73 de Brian, VK2GCE.

?

On Wednesday, 4 September 2019 10:39 AM, Dan said:

?

Hi John,

?

? ?Some time ago (2 years or more?) I repaired one of these contact fingers *in-situ*, without taking the instrument apart.? I posted pictures in one of the photo albums.? Look back through the messages with my name in them.? You might get lucky if you find the finger and can manipulate it well enough to epoxy it back into place.

?

Dan

?

?

On Tuesday, September 3, 2019, 07:32:13 PM EDT, Paul Amaranth <paul@...> wrote:

?

?

This is a really common problem.? Generally, the contacts fall off somewhere inside
the unit, but they may go missing.? You can fabricate some from suitable shim stock.
Here's one person who did that:



It's a bit of a ways down.? I'm not sure what the original material was (stainless? a
nickel alloy?) but given the age of the equipment and the use it will likely get, I don't
think it would matter a lot.? I think some have made up contacts from a piece of stainless
steel feeler gauges (like you would use in auto repair).

good luck

On Tue, Sep 03, 2019 at 02:56:08PM -0700, johnlegros wrote:
> hello , have a nice working spectrum 8558b with electron beam memory? , all is correct have checked , but the issue the time division switch does not work , in auto mode, , opened it and found a missing part in the switch , from the service manual sent with this spectrum analyser from new only 40 years ago part number is 5061-5425 pronger switch , it is the metal leaf part which is missing , checked and did not find it anywhere , so question is does anyone have or make these ? thanks
>
>
>
>
>
> !DSPAM:5d6ee55b212076544458839!

--
Paul Amaranth, GCIH? ? ? ? ? ? | Manchester MI, USA
Aurora Group of Michigan, LLC? |? Security, Systems & Software
paul@...? ? ? ? ? ? ? |? Unix & Windows? ? ? ? ? ? ?

Yes that is exactly the issue after time they fall out and get lost.

If found they can be epoxied back in. Then be careful using the switch. You can also home brew a new leaf. Its very hard to do. Of course you also don't have the right finger material.

But I have a number of working units and all seemed to have lost one or another of these switch fingers. I was lucky in that they were typically in the unit some place.

Good luck and its worth the effort to home brew if you have to.

Regards

Paul

WB8TSL