On Oct 17, 2017, at 2:31 AM, Steve A starmux64@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:

听

Hi Tobias

Check out听 as it may help.

Regards

Steve

On 鈥嶮onday鈥�, 鈥嶰ctober鈥� 鈥�16鈥�, 鈥�2017鈥� 鈥�08鈥�:鈥�56鈥�:鈥�32鈥� 鈥嶢M鈥� 鈥嶣ST, Tobias Pluess tobias.pluess@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:

听

Hi all,
one of my other projects I'm working on is a 5342A which does not count on the high frequency input.
I checked the sampler according to the service manual. I used a 34401A for the resistance meausrement and got 22k in forward bias and >3M in reverse bias. This is quite different from the values stated in the service manual; however, when I look at the schematic, I think it should be possible to test the sampler with the diode test function. I did that, and I found out that in forward bias, I have approx. 0.4 volts, and reverse bias is open. So it looks like a pretty nice diode. However I cannot compare to other samplers, and the service manual also tells that the resistance measured can vary greatly if not exact 1mA measuring current is used.
Does that sampler look good to you guys, or is it probably broken? because if it is broken I think it makes no sense to invest additional time to fix things.

Tobias, HB9FSX

On Mon, 10/16/17, Peter Gottlieb hpnpilot@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:

Subject: Re: [hp_agilent_equipment] 8901B Power level zeroisation
To: hp_agilent_equipment@...
Date: Monday, October 16, 2017, 10:11 PM

Ok, so that worked, but what does
percent mean for FM?听 kHz deviation would be
more useful.

Peter


On
10/6/2017 9:25 AM, Dennis Czelusniak czelusniakd@...

[hp_agilent_equipment] wrote:
>
>
>
E1 is invalid key sequence if calibration is pressed while
not in AM or FM.
> 8480 series sensors
work with your unit, high priced 11722A not required.
> If you have option 10, connect calibrator
output to input, select AM, push
>
calibrate and wait, takes about 20 seconds, do the same with
FM, display
> reading will be 99.0 to
101.0%
>
> Dennis
>
>
--------------------------------------------
> On Fri, 10/6/17, matt.ames7bc@...
[hp_agilent_equipment]
> <hp_agilent_equipment@...>
wrote:
>
> Subject:
[hp_agilent_equipment] 8901B Power level zeroisation
> To: hp_agilent_equipment@...
> Date: Friday, October 6, 2017, 2:57 AM
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
Hi all,
> I have an 8901B here that I use
to
> measure power with, using the
internal power detector and
> *not* the
fancy external 11722A sensor.
> When I
have nothing connected to the
> input,
and I press the zero key, I get an Error
> 21.
> Does anyone know
what I am doing wrong,
> and how to zero
the internal power level
> sensor?
> Cheers,
> Matt
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>



------------------------------------
Posted by: Peter Gottlieb <hpnpilot@...>
------------------------------------


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

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On Mon, 10/16/17, Daun Yeagley daun@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:

Subject: Re: [hp_agilent_equipment] Plan to deep cleaning my gear
To: hp_agilent_equipment@...
Date: Monday, October 16, 2017, 9:37 PM


听












I find that Ronson lighter fluid, which is just naptha
works very
well.听 This includes not only label goo, but a wide
range of
"dirt".听 It's mild and doesn't hurt
plastics (at least not any that
I've come across).听 I keep it right there on my
bench and use it for
most cleaning jobs, including also flux removal.



Daun

Daun E.
Yeagley, II, N8ASB
On 10/16/2017 1:39 PM,
guancalvin@...
[hp_agilent_equipment] wrote:


听


Thank a lot for all your inputs guys! My
instruments work
very well for their age. I just wanted to make
them great
again:)



After reading your posts, I figured I will
stay away
from using any liquid or solvent for PCB
cleaning. I would
just听 use electronics grade gas duster to
blow dust off
the surface of the boards. Or a small vacuum
and a high
quality horse hair brush would work
better?听
听
听I was under impression that excessive
dust would pick
up moisture that would damage my equipments.
Is that true?



For some very old and dry sticker residue
on the front
panel, how should I safely remove them? I have
Goo Gone
but don't know if it's safe for
instrument. It's kind of
oily.



Thanks again!
Calvin听

























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On 10/6/2017 9:25 AM, Dennis Czelusniak czelusniakd@... [hp_agilent_equipment] wrote:

E1 is invalid key sequence if calibration is pressed while not in AM or FM.
8480 series sensors work with your unit, high priced 11722A not required.
If you have option 10, connect calibrator output to input, select AM, push
calibrate and wait, takes about 20 seconds, do the same with FM, display
reading will be 99.0 to 101.0%

Dennis

--------------------------------------------
On Fri, 10/6/17, matt.ames7bc@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:

Subject: [hp_agilent_equipment] 8901B Power level zeroisation
To: hp_agilent_equipment@...
Date: Friday, October 6, 2017, 2:57 AM






























Hi all,
I have an 8901B here that I use to
measure power with, using the internal power detector and
*not* the fancy external 11722A sensor.
When I have nothing connected to the
input, and I press the zero key, I get an Error
21.
Does anyone know what I am doing wrong,
and how to zero the internal power level
sensor?
Cheers,
Matt

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

From: "guancalvin@... [hp_agilent_equipment]" <hp_agilent_equipment@...>
Sent: Oct 16, 2017 1:39 PM
To: hp_agilent_equipment@...
Subject: Re: [hp_agilent_equipment] Plan to deep cleaning my gear

Thank a lot for all your inputs guys! My instruments work very well for their age. I just wanted to make them great again:)

After reading your posts, I figured I will stay away from using any liquid or solvent for PCB cleaning. I would just use electronics grade gas duster to blow dust off the surface of the boards. Or a small vacuum and a high quality horse hair brush would work better?

I was under impression that excessive dust would pick up moisture that would damage my equipments. Is that true?


For some very old and dry sticker residue on the front panel, how should I safely remove them? I have Goo Gone but don't know if it's safe for instrument. It's kind of oily.


Thanks again!
Calvin

Michael A. Terrell

听

Hi Tam,

No, thank you.

Frank