Vladan,

Would you mind sharing where I could find information on pushing the 8341 to 26.5GHz?


Siggi,

I agree with Vladan, the 8341 is heavy but it seems like a very robust machine. Looking inside it seems very repairable and I expect that if I keep mine, I should be able to use it until I reach my expiration date.? I noodled an 8341B off of eBay for $600 and it needed only a replacement battery and the int/ext ref switch replaced.? The seller listed it as-is and I was the lucky fisherman who figured it was worth the risk.? At 76.5lbs it was almost $80 to ship, but I think this one is my keeper unless I find some really good deal on an 8360 series.? In regards to the noise, I think it could be quieted down somewhat with a fan of the same CFM rating but different blade design, I am looking in to this.? I also wonder if a smaller fan could be used if I replaced the internal power supplies with something more modern with higher efficiency, as I believe these are the bulk of the thermal dissipation.

'Dr. David Kirkby (Kirkby Microwave Ltd)' drkirkby@... [hp_agilent_equipment] wrote:

On 19 February 2016 at 15:45, Chuck Harris cfharris@...
[hp_agilent_equipment] <hp_agilent_equipment@...> wrote:

On the subject of ebay batteries.

I needed some lithium cells of the standard 18650 size. There
are tons for sale on ebay. Wanting the highest capacity I could
find, I naively bought a dozen 9800mAh cells from a seller that
will remain nameless.

Why? This makes the problem worst.

I don't wish to undergo the ordeal of being forced to
defend my statements in court. In the US, the burden
of proof goes to the slanderer/libeler.

It is very expensive, even if you are 100% in the right.

Except, they were less than 1/2 the weight of the nearest cell
mentioned in legitimate manufacturer's data sheets, and they tested
out at ...<drum roll>.... 450mAh! Applause... take your bow!

The ebayer, of course assured me they were genuine, and that they
must simply be defective... and returned all of my money plus
shipping.

Did you leave negative feedback? Most people don't when they get their
money back, yet clearly it was a negative experience. So the seller gets
away with it.

You probably aren't aware of it, but you can't leave negative
feedback for large sellers. Especially if they do the "right"
thing and refund your money.

This was a seller that made most of his/her money selling sex
toys. He/she had 115K feedbacks registered.

On refunding my money, they cancelled the auction, which left
me with no opportunity to give feedback... no auction, no
feedback.

I left neutral feedback with another seller, and on reading
the neutral feedback, the seller offered me $10 to make up for
$100 worth of shipping damage due to his non existent packing.

...bippity boppity boo!...

He had my neutral feedback removed.. Its like it never happened.

So, I complained to ebay. One of their case reviewers checked
over things, found that my feedback had been removed, read my
feedback, and declared it was reasonable, and violated no ebay
standards.... and said he would appeal... and nothing happened!

Imagine my surprise!

I would take a different attitude. I'd report them as counterfeit, and ask
the manufacturer if the weight it correct, and why the capacity is so low.
At that point you would probably have enough evidence to convince eBay they
are counterfeit, and the problem would be reduced.

The reason the seller was quick to resolve the problem is because
I told them they were counterfeit, and how I could prove it.

I don't like to escalate things through the system unnecessarily,
because the act of filing gets the seller punished, regardless of
the ultimate cause or fault.

My first choice is to "ask the seller a question". If they ignore
me, or get huffy, I file.

Too many people just don't do anything when they get bad service on eBay. A
failure to leave any feedback results in positive feedback and 5 stars for
everything after some set period of time.

When you don't give feedback, it works against the seller. Ebay
keeps track of the number of sales vs the number and type of feedback.

Anyway, you can see why I say don't buy batteries on eBay. My same advice

I thought I made that clear?


-Chuck Harris

On the subject of ebay batteries.

I needed some lithium cells of the standard 18650 size. There
are tons for sale on ebay. Wanting the highest capacity I could
find, I naively bought a dozen 9800mAh cells from a seller that
will remain nameless.

When they arrived, they were beautiful! All safely shrink packed
in pairs, new date codes everything you might want to see.

Except, they were less than 1/2 the weight of the nearest cell
mentioned in legitimate manufacturer's data sheets, and they tested
out at ...<drum roll>.... 450mAh! Applause... take your bow!

The ebayer, of course assured me they were genuine, and that they
must simply be defective... and returned all of my money plus
shipping.

When I looked more carefully at the ebayer's store, I noted that
they sold ten different major brands of 18650 cells, all different
mAh ratings... I would bet they all were 450mAh mystery cells.

They also sold battery powered sex toys, and clothing.... I wonder
what that means?

Don't buy batteries on ebay... unless you enjoy being disappointed.

-Chuck Harris

'Dr. David Kirkby (Kirkby Microwave Ltd)' drkirkby@... [hp_agilent_equipment] wrote:

开云体育

开云体育

开云体育

Add 3476A, 4-digit, auto-ranging, Vdc, Vac, Idc, Iac, R and Range hold

---

Email sent using Optus Webmail

On 19 Feb 2016 01:19, "daniel@... [hp_agilent_equipment]" <hp_agilent_equipment@...> wrote:
>
> I've been using Ebay since 1996 (when it was called "AuctionWeb") and have a 100% rating.?

> Here's a few pieces of advice:

> -? Look at the seller's feedback rating.? Look more carefully if you're buying something valuable, look at the negatives and see what they say.?

As I wrote above, that has its uses but it has its problems for the reasons I stated.

Another trick I forgot to mention is one that express-test (Alltest, in the USA) do. If you look they sell small quantities of HP feet. You buy 1 on one auction,? 2 on another auction.? There is no auction where you can select the number you want.?

When I was buying an item from them,? and wanted 30 feet, they insisted that they were purchased on eBay.? They told me that they get them made, sell them at cost, with the purpose of boosting feedback.? So I had to purchase about half a dozen auctions to get the feet. So they got 7 positive feedbacks from me.

> If someone's been on there for years and has a 100% feedback rating, they're probably very safe to buy from.?

As I note, yixunhk, from China,? is one dodgy seller who keeps their 100% rating by some dodgy means.

Another thing,? if a buyer leaves no feedback,? I am pretty sure I read it counts as positive at some point.

> Another thing I've found that's great to buy on Ebay: batteries.? I needed some CR2012 batteries, which you can easily pay $3 each for in a retail store.? There's sellers selling these things for 10/$5 or something like that; they ship them to you in a letter-size envelope, taped to a piece of paper! Obviously they buy them in huge quantities and sell them sans packaging at a profit; at Walmart you're paying for fancy packaging and retail overhead.

Now batteries is one item I will *not* buy from eBay. The probability of your $0.50 battery being a poor counterfeit part, with the risk of leakage is very high.

Dr David Kirkby
Managing Director
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd, Chelmsford, Essex, CM3 6DT, United Kingdom
Registered in England and Wales as company number 08914892

Tel 07910 441670 / +44 7910 441670 (0900-2100 GMT)

On Thu, 2016-02-18 at 12:30 -0800, sreeb sreeb@...
[hp_agilent_equipment] wrote:

I just tried to update from an ancient logitech ps/2 mouse with ball to
a new ps/2 laser mouse. My 16700B didn't recognize it.

Same result with a new compact keyboard. My old one, that dates from
around 1990, works fine.

Both are native ps/2 devices and work on windows machines with ps/2
interfaces.

Has anyone else encountered this problem?

Ed


---
This email has been checked for viruses by Avast antivirus software.

I use ancient media-tech mt111 mouse with ps/2 connector. I turned out
that hp16702 will complain (and stop) during boot if the mouse is not
connected even that its window manager is configured for remote session
(vnc) so i keep the mouse in the pouch bag all the time however mouse
must be connected.
I know nothing about keyboard. Didn't have any need/interest in using
aux keyboards.

the mt111 is ball, 3-buttons + wheel mouse and seems it is not available
anymore.

--
Krzysztof Blaszkowski

is a very long list of test equipment model numbers with brief description. The person who created the list also has links to photos of a lot of the equipment. I stumbled across it, while searching for a manual for an obscure piece of test equipment.

On Thu, 18 Feb 2016 22:12:17 -0500, you wrote:

I was referring to the question regarding latest Java browser update

ok, thanks.

Harvey

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

From: Harvey White madyn@... [hp_agilent_equipment] <hp_agilent_equipment@...>

To: hp_agilent_equipment <hp_agilent_equipment@...>

Sent: Thu, Feb 18, 2016 6:42 pm

Subject: Re: [hp_agilent_equipment] 16700B mouse and keyboard compatibility



??? On Thu, 18 Feb 2016 21:01:14 -0500, you wrote:

Time for a dedicated laptop/desktop without the java period

I'm puzzled, how does this allow the 1670x to work with an existing

keyboard or mouse?



Do you propose, instead, bypassing the local connections and using a

separate computer?



Harvey

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

From: dburton97128@... [hp_agilent_equipment] <hp_agilent_equipment@...>

To: hp_agilent_equipment <hp_agilent_equipment@...>

Sent: Thu, Feb 18, 2016 4:22 pm

Subject: Re: [hp_agilent_equipment] 16700B mouse and keyboard compatibility

??? ---------------------

It appears that all that is wrong with these units is that they are

missing pull-up resistors on the PS/2 ports. There are even unpopulated

pads for them directly behind the connectors. (see image) All that I had

to do was add 1k resistors in the four locations and the unit recognized

an old el-cheapo PS/2 mouse and keyboard. (As expected, a USB mouse or

KB thru a PS/2 adapter did not work.)

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

Good to know.??? I hunted through my box of old keyboards until I found on that worked, but someday I might still need this.

Now id someone could just solve the recent JAVA security update incompatibility that would be great (recent JAVA does not work with the remote browser interface, refuses to connect to the analyzer).

Bob Dildine is correct and if you feel the same way, then the 8341 may be your best choice. (It's almost the same as the 8340.) It has two downsides. It's extremely heavy - probably the heaviest piece of test equipment from that era. And it is really loud.

But, it goes from 10 MHz to 20GHz and it doesn't require software for adjustments. BTW, the 8341 can be made to go to 26.5 GHz, you will have to align it in that last band and push some keys on the front panel to enable that feature.

BTW, I think I once aligned the 8566 front end using a 321.4 MHz source, the first LO and a mixer. Obviously, it wasn't a great job, but if you have no other equipment, you can get things going that way.

Vladan

Perhaps this?
Ebay #
201522528149

On Thu, 18 Feb 2016 21:01:14 -0500, you wrote:

Time for a dedicated laptop/desktop without the java period

I'm puzzled, how does this allow the 1670x to work with an existing
keyboard or mouse?

Do you propose, instead, bypassing the local connections and using a
separate computer?

Harvey

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

From: dburton97128@... [hp_agilent_equipment] <hp_agilent_equipment@...>

To: hp_agilent_equipment <hp_agilent_equipment@...>

Sent: Thu, Feb 18, 2016 4:22 pm

Subject: Re: [hp_agilent_equipment] 16700B mouse and keyboard compatibility



??? ---------------------

It appears that all that is wrong with these units is that they are

missing pull-up resistors on the PS/2 ports. There are even unpopulated

pads for them directly behind the connectors. (see image) All that I had

to do was add 1k resistors in the four locations and the unit recognized

an old el-cheapo PS/2 mouse and keyboard. (As expected, a USB mouse or

KB thru a PS/2 adapter did not work.)

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



Good to know.??? I hunted through my box of old keyboards until I found on that worked, but someday I might still need this.



Now id someone could just solve the recent JAVA security update incompatibility that would be great (recent JAVA does not work with the remote browser interface, refuses to connect to the analyzer).

Siggi,

I have both an HP 8672A (2-18 GHz) and an HP 83732A (10 MHz - 20 GHz). I'm partial to the HP 8672A because that was my first project of my 30 year career at HP but I really like the HP 83732A. However, the 83732 requires specialized service software that runs on the HP series 200 or 300 computers to make any adjustments. This software writes calibration constants into ROM. I'm stuck with uncalibrated power output (it's off by 4-6 dB and not monotonic) and no way to correct it. The 8672 was done before the era of computers and all of its adjustments are done manually as outlined in the manual.

So whatever you choose, be aware that a fixer upper might require service software that is now unobtainable and runs on computers that are old and obsolete.

Regards,

Bob Dildine
w6sfh at sonic dot net