My procedure on the 8566/8568 SA’s (same key switches) was to to remove the front panel, then the keyboard, then use a swab with IPA (isopropyl alcohol) and rotate the swab on the metal spring - above and below the red plastic bridge that hold the spring in the switch, then repeat with DeOxit. Then exercise the switch, checking for
proper operation. This also allows you to check for missing springs, misaligned springs, rusty springs, and dirty springs. I never had repeat issues with these switches unless the operating environment was very dirty.
Don Bitters

For those of you that have had enough, look at the bottom of your email. There's a link that says "Mute This Topic". Click the link and follow the instructions.?

?

Regards

?

Lou

VK3ALB

On Mon, Apr 13, 2020 at 4:34 AM Don Lewis <dlewis6767@...> wrote:

This hen-party should go offline.

?

?

================================================================================

On 4/12/2020 12:27 PM, Tam Hanna wrote:

Hello,
Sorry to take this even more off topic: Mahler is an electrical engineer??? I mean, OK, he bedded a woman 25 years his younger, which is quite common with engineers who pick up Game as a side hustle.

Now I really worry about our profession. This is a little known fact: the Syrian government did a study of religious and political extremists. The results were shocking: I expected psychoanalysts, students of gender, philosophers and other "talk scientists" to take the lead. But it actually was electrical engineers taking the lead...

And nope, I am too much of an Alcoholic to even consider Islamism. I would fight FOR beer, not against it.

Tam

---

With best regards
Tam HANNA (emailing on a BlackBerry PRIV)

Enjoy electronics? Join 14k other followers by visiting the Crazy Electronics Lab at

Am 12. April 2020 19:16:30 MESZ schrieb Carsten Bormann <cabocabo@...>:

On 2020-04-12, at 14:31, Chuck Harris <cfharris@...> wrote:

So, Germany has changed to allow its people to wander the streets wearing swastika’s?

Of course not.  We’re not idiots.

But you don’t get "in jail for 10 years" for “saying something”.
Seriously bad actors like  (*) do get in trouble, though.  Don’t operate like him.

I’m sorry I have to bring this up again, but the kind of malicious misinformation that started this side conversation cannot stand.

Grü?e, Carsten

(*) I actually worked with the guy during one of his lucid phases, at the time when he did some work for the customer for a board/firmware design I was involved with.  Incredibly brilliant guy.  His renewed downturn is a sad, sad story.  But of course off-topic here.

---

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Unsubscribe: /g/HP-Agilent-Keysight-equipment/leave/defanged  [tamhan@...]

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?

?

From: "Barry" <n4buq@...>
To: [email protected]
Sent: Friday, April 10, 2020 2:22:53 PM
Subject: Re: [HP-Agilent-Keysight-equipment] HP 334A Balance Pots

I may try prying them open as well so as to be a bit more careful about how
I'm cleaning things in there.

Thanks,
Barry - N4BUQ

----- Original Message -----

From: "Richard Knoppow" <dickburk@...>
To: [email protected]
Sent: Friday, April 10, 2020 1:45:25 PM
Subject: Re: [HP-Agilent-Keysight-equipment] HP 334A Balance Pots

?? I have had some luck by prying the covers off for cleaning
and then crimping the tabs back. Can't be done where the pots are
stacked. AB were the best of the bunch are a pain to clean.
Ohmite sold these same pots under their own name. Same for fixed
composition resistors, Ohmite and AB are actually all AB. Ohmite
actually says this in some of its early advertising. I have no
idea what the story behind this was.

On 4/10/2020 11:30 AM, ebrucehunter via groups.io wrote:

Barry,

I have one of these instruments, but it is too buried to easily
allow inspection to determine what type of pots were used.

If the values are above 1k, they are probably not wire-wound.
If they happen to be Allen-Bradley (AB) pots, an age old remedy
is to take a 1/16-inch drill bit and drill a hole in the cover
- in the outer crevice - at the bottom of the pot away from the
terminals.? The snout of a can of contact cleaner can then be
inserted in the drilled hole to blast the interior of the pot.
This cleaning will typically last for two or three years and
then you might have to do it again.? The access hole remains
available.? In drilling the hole, metal chips seem to be pulled
outward and are unlikely to enter the pot.? But be careful so
that when the drill bit breaks through, that it does not enter
and damage the pot.

Often these pots can be cleaned by pulling outward on the shaft
-- it will move about 1/16-inch -- while quickly turning the
knob from end to end.

Bruce, KG6OJI

--
Richard Knoppow
dickburk@...
WB6KBL

FYI,

The 4195A manuals are available, but not from Artek Media. ?The Service and Maintenance manuals (pdf) are at Carleton University, CA - resolution seems to be very good. ?The Operating manual (pdf) is available at Keysight, and does have some programming in the back of the manual. ?I have also seen 3.5 in. disks labeled 4195A, so there are some out there.

4195A?

Service Man.

Maintenance Man.

Operating Man.

Don Bitters

Location location

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Richard R.
Pope
Sent: 12 April 2020 05:19
To: [email protected]
Subject: [HP-Agilent-Keysight-equipment] FS: HP 16700A LA!

Hello all,
I hit a deer in WY with my brand new car. They are probably going
to total it. My GAP insurance will pay off the loan but I am probably
going to be left on foot. I am getting out of working on electronics. I
have a HP 16700A LA and 16700B expansion unit for sale. There are 5
16555D cards in the 16700A. The interconnect cable for the the 16700B is
here. There are five pairs of cables for the 16555Ds. There are
terminators for the cables and clips. The HDD in the 16700A has been
upgraded to a Seagate ST 318417N and there is an external HDD and case
connected to the system for extra storage. There is also a SCSI CD-Rom
drive and a floppy drive installed in the 16700A. The latest OS has also
been installed.
It will take two very large boxes and a smaller box to packaged it
up for shipping. So shipping will be expensive. Local pick up is
welcome. It operates and all of the cards are good. I will guarantee no
DOA. Please make me a fair offer and help me out with this. I will take
Paypal F&F, Money Order, Cashiers Check, Personal Check but it will be
held until the check clears.
GOD Bless and Thanks,
rich!






-----
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.8048 / Virus Database: 4793/15886 - Release Date: 08/14/18
Internal Virus Database is out of date.

Hello,
Sorry to take this even more off topic: Mahler is an electrical engineer??? I mean, OK, he bedded a woman 25 years his younger, which is quite common with engineers who pick up Game as a side hustle.

Now I really worry about our profession. This is a little known fact: the Syrian government did a study of religious and political extremists. The results were shocking: I expected psychoanalysts, students of gender, philosophers and other "talk scientists" to take the lead. But it actually was electrical engineers taking the lead...

And nope, I am too much of an Alcoholic to even consider Islamism. I would fight FOR beer, not against it.

Tam

---

With best regards
Tam HANNA (emailing on a BlackBerry PRIV)

Enjoy electronics? Join 14k other followers by visiting the Crazy Electronics Lab at

Am 12. April 2020 19:16:30 MESZ schrieb Carsten Bormann <cabocabo@...>:

On 2020-04-12, at 14:31, Chuck Harris <cfharris@...> wrote:

So, Germany has changed to allow its people to wander
the streets wearing swastika’s?

Of course not.  We’re not idiots.

But you don’t get "in jail for 10 years" for “saying something”.
Seriously bad actors like  (*) do get in trouble, though.  Don’t operate like him.

I’m sorry I have to bring this up again, but the kind of malicious misinformation that started this side conversation cannot stand.

Grü?e, Carsten

(*) I actually worked with the guy during one of his lucid phases, at the time when he did some work for the customer for a board/firmware design I was involved with.  Incredibly brilliant guy.  His renewed downturn is a sad, sad story.  But of course off-topic here.
Groups.io Links: You receive all messages sent to this group.

View/Reply Online (#104847): /g/HP-Agilent-Keysight-equipment/message/104847
Mute This Topic: /mt/72936034/102401
Group Owner: [email protected]
Unsubscribe: /g/HP-Agilent-Keysight-equipment/leave/defanged  [tamhan@...]

Hello,
Sorry to take this even more off topic: Mahler is an electrical engineer??? I mean, OK, he bedded a woman 25 years his younger, which is quite common with engineers who pick up Game as a side hustle.

Now I really worry about our profession. This is a little known fact: the Syrian government did a study of religious and political extremists. The results were shocking: I expected psychoanalysts, students of gender, philosophers and other "talk scientists" to take the lead. But it actually was electrical engineers taking the lead...

And nope, I am too much of an Alcoholic to even consider Islamism. I would fight FOR beer, not against it.

Tam

---

With best regards
Tam HANNA (emailing on a BlackBerry PRIV)

Enjoy electronics? Join 14k other followers by visiting the Crazy Electronics Lab at

Am 12. April 2020 19:16:30 MESZ schrieb Carsten Bormann <cabocabo@...>:

On 2020-04-12, at 14:31, Chuck Harris <cfharris@...> wrote:

So, Germany has changed to allow its people to wander
the streets wearing swastika’s?

Of course not.  We’re not idiots.

But you don’t get "in jail for 10 years" for “saying something”.
Seriously bad actors like  (*) do get in trouble, though.  Don’t operate like him.

I’m sorry I have to bring this up again, but the kind of malicious misinformation that started this side conversation cannot stand.

Grü?e, Carsten

(*) I actually worked with the guy during one of his lucid phases, at the time when he did some work for the customer for a board/firmware design I was involved with.  Incredibly brilliant guy.  His renewed downturn is a sad, sad story.  But of course off-topic here.
Groups.io Links: You receive all messages sent to this group.

View/Reply Online (#104847): /g/HP-Agilent-Keysight-equipment/message/104847
Mute This Topic: /mt/72936034/102401
Group Owner: [email protected]
Unsubscribe: /g/HP-Agilent-Keysight-equipment/leave/defanged  [tamhan@...]

On 2020-04-12, at 14:31, Chuck Harris <cfharris@...> wrote:

So, Germany has changed to allow its people to wander
the streets wearing swastika’s?

Of course not.  We’re not idiots.

But you don’t get "in jail for 10 years" for “saying something”.
Seriously bad actors like  (*) do get in trouble, though.  Don’t operate like him.

I’m sorry I have to bring this up again, but the kind of malicious misinformation that started this side conversation cannot stand.

Grü?e, Carsten

(*) I actually worked with the guy during one of his lucid phases, at the time when he did some work for the customer for a board/firmware design I was involved with.  Incredibly brilliant guy.  His renewed downturn is a sad, sad story.  But of course off-topic here.
Groups.io Links: You receive all messages sent to this group.

View/Reply Online (#104847): /g/HP-Agilent-Keysight-equipment/message/104847
Mute This Topic: /mt/72936034/102401
Group Owner: [email protected]
Unsubscribe: /g/HP-Agilent-Keysight-equipment/leave/defanged  [tamhan@...]

Hello,

sorry, I need to make one last comment on this, also because I need to travel to Austria regularily because of my mortally ill ex wife whose primary carer I am. Dorit would lie down and die if I can no longer come in and put out the fires she starts.


First of all, for the Europeans: I am a member of a protected class myself, mercy of my "noble birth" (father a Syrian, will provide PDF of birth form on request). So, I assume two accounts will now become very quiet. I never played this card in my entire sordid career, but in the last few years, I have had it. We conservatives still believe politics is a ping pong game, and come with mistress, seamed nylons, a pingpong flyswatter and a pingpong ball. Sadly, the other side has decided to bring to a Ninja, chain armor, a powered chucker and a gaggle of Shuriken (like a throwing knife).


The whole Nazi affair is a red herring intended to distract from real matters. F### the Hiterlists, who proved their idiocy in military (ME262, MP44), scientific (nuclear research, Heinkel HeS engine) and political (Ukraine, Poland, not understanding penal bataillions, Japan vs China, etc) matters. Nazi crap is not the big issue with free speech - some of my conservative friends might now bash me, but someone who is too stupid to see that Hitlerists are obvious idiots, deserves bad things especially if he is an Engineer.

What concerns me is the whole "detain at the pleasure of Psychoanalysis" thingy. Best example is Gustl Mollath - and, at least in Austria, these cases are legion. You commit any "crime" - think five felonies a day, as linked by Carlton Meyer - and you find yourself in a life long sentence.



With best regards
Tam HANNA

Enjoy electronics? Join 15k7 other followers by visiting the Crazy Electronics Lab at

On 2020. 04. 12. 15:10, Chuck Harris wrote:

Pretty hard to discuss Germany, and free speech without
discussing nazism.? Godwin's law only applies when you
accuse others of being, or acting like nazi's.? Which
wasn't done.

But I agree, this thread should never have begun, but
some bilge is hard to watch without responding.

-Chuck Harris

Tom Gardner wrote:

I invoke Godwin's Law.

For those that want to continue this, please decamp to sci.electronics.design, where
there is also some extremely high quality electronics information amongst the "OT"
threads.

On 12/04/20 13:31, Chuck Harris wrote:

So, Germany has changed to allow its people to wander
the streets wearing swastika's?? How about flying the
Nazi flag?? How about wearing an SS uniform on a public
square, and loudly exclaiming how you think Hitler had
the right idea, all Jews should be exterminated?