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FS 3709B 8656A 8657J

 

Hi!

I am selling two sig-gens and constellation analyzer:

- 8656A uncal, some scratches, no option, working fine, accurate and clean wave generation. 4 key springs missing, but working fine. Original operation and service manual included
- 8657J sealed, calibrated, combo with pi/4 dqpsk modulator, perfect working and cosmetic conditions
- 3709B himself (bright crt, very clean, working fine but uncal) plus operation & service original manuals (the service is vhtf), 15709A impedance adapter, siemens 1.6-5.6 to bnc adapters, and handle & standoff feet kit.

I am from Madrid, Spain. PM me if you are interested for photos and so.

Regards,

R.
HP 11708A Reference Attenuator

 

Hello, I luck to found one HP 11708A Reference Attenuator for the 8484A power sensor, one god 30dBm attenuator is ok to use?
Thank you for your help.
Francesco.
G7OYO
HP 5214L counter

 

Looking for a handbook/service manual for same- ebay prices far too steep. A
pdf would be fine- but it's not listed at Artek.
DaveB, NZ
Re: 8566B 1dB scale trace not linear at bottom of screen

 

I found the 1dB adjustment in the manual

The 1dB step adjustment procedure in the manual involves fixed resistors which I must swap to adjust, the test calls for clipping the trace on the top of the screen and measuring the amount it supposed to go over. I don't believe I noticed anything unusual before with the trace clipped so I think that is ok.

10. Step Gain and 18.4 Mhz Local Oscillator Adjustments
Re: A bit OT: simulators for children

 

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I dunno, maybe by the time I got them in the mid to late 1970's they were either not making them like they used to or I was too advanced by then to be all that interested.? ? ? ? ?Jim Ford?



Sent from my Verizon, Samsung Galaxy smartphone

-------- Original message --------
From: "sholland via groups.io" <sholland@...>
Date: 6/8/21 1:21 PM (GMT-10:00)
Subject: Re: [HP-Agilent-Keysight-equipment] A bit OT: simulators for children

Things of Science. Yeah, absolutely brilliant kits of various things covering all sorts of science topics. Loved getting it as a kid. Those little blue boxes were eagerly opened and the educational topics were eagerly consumed.?

Re: 8566B 1dB scale trace not linear at bottom of screen

 

As I remember, it is easy, but there are several adjustments that should be done B4 if you want the thing to be overall accurate. I think you can just touch up the attenuation and get off with out touching the LOG amp or VIDEO amp adjustments. These are a bit more time consuming.

Cheers!

Bruce

Quoting DW <wilson2115@...>:

The replies are appreciated.

I will study the manual and if it is simple I will attempt to adjust it.
Re: 8566B 1dB scale trace not linear at bottom of screen

 

The replies are appreciated.

I will study the manual and if it is simple I will attempt to adjust it.
Re: A bit OT: simulators for children

 

Things of Science. Yeah, absolutely brilliant kits of various things covering all sorts of science topics. Loved getting it as a kid. Those little blue boxes were eagerly opened and the educational topics were eagerly consumed.?
Re: 8566B 1dB scale trace not linear at bottom of screen

 

On Tue, Jun 8, 2021, 6:29 PM Steve - Home <steve-krull@...> wrote:
I just ran that scenario on my 8566B and the trace does not start to fall off but tracks the sig gen output all the way.?

Same here with 10MHz output from my HP 8665A.
Re: 8566B 1dB scale trace not linear at bottom of screen

 

¿ªÔÆÌåÓý

I just ran that scenario on my 8566B and the trace does not start to fall off but tracks the sig gen output all the way.?

Steve
WB0DBS



On Jun 8, 2021, at 4:20 PM, DW <wilson2115@...> wrote:

?Here is a thought, if someone with a 8566 could reproduce my results by injecting a -20dBm 10 Mhz signal and setting the reference level to -20dB and set the scale to 1dB. Then with the signal generator start dropping the signal from -20dBm to -30dBm in 1dB increments. Does the trace start to fall off towards the bottom of the screen compared to 2dB and 5dB?

2 files uploaded #file-notice

[email protected] Notification
 

The following files have been uploaded to the Files area of the [email protected] group.

By: Ken Eckert <eckertkp@...>
Re: Scope Probe parts

 

You might check the catalog at probemaster.com

These are not Agilent/HP probes, but their own OEM designs, but there's some chance that they will have accessories which will fit your probes.? I found, a few years ago, that their screw-in probe tips are a good fit for the probes on the venerable HP 8405A vector voltmeter (and are much less expensive than new-old-stock HP).
Re: 8566B 1dB scale trace not linear at bottom of screen

 

This is most probably an 8566 adjustment problem. Look over the adjustment procedure and you will find a section where the attenuators are adjusted. I'll try to find time to look up the exact section, but I remember doing this and correcting similar errors.


Quoting DW <wilson2115@...>:

Here is a thought, if someone with a 8566 could reproduce my results by injecting a -20dBm 10 Mhz signal and setting the reference level to -20dB and set the scale to 1dB. Then with the signal generator start dropping the signal from -20dBm to -30dBm in 1dB increments. Does the trace start to fall off towards the bottom of the screen compared to 2dB and 5dB?
Re: 8566B 1dB scale trace not linear at bottom of screen

 

Here is a thought, if someone with a 8566 could reproduce my results by injecting a -20dBm 10 Mhz signal and setting the reference level to -20dB and set the scale to 1dB. Then with the signal generator start dropping the signal from -20dBm to -30dBm in 1dB increments. Does the trace start to fall off towards the bottom of the screen compared to 2dB and 5dB?
Re: Capturing screenshots on 8934C

 

¿ªÔÆÌåÓý

Hi,

?

I found that for screen capture about 8924C?

?

BTS software

?

?

De?: [email protected] <[email protected]> De la part de w9dkc
·¡²Ô±¹´Ç²â¨¦?: 8 juin 2021 08:57
??: [email protected]
Objet?: Re: [HP-Agilent-Keysight-equipment] Capturing screenshots on 8934C

?

Sorry, yes. 8924C

Hp8558b spectral analyzer (2/2)

 

Hello,?

as i saw, i nether see anyfing on the screen os the HP 182T.

Except!!!? Look at the vid¨¦o...very strange

All is good connected.? The input N go to the block attenuator

some id¨¦as??

cdt

Strange!!!.3gp
Strange!!!.3gp

Re: Hp8558b Spectral analyzer (1/2)

 

it's better with the files

Display frequency.3gp
Display frequency.3gp
Input.jpg

Hp8558b Spectral analyzer (1/2)

 

hello,

i have repard the displays
This analyzer never allowed me to display anything except once , with a generator and a 5v signal which is a bit strong

May you tell me if the?if the BNC connector has been replaced by an N. the plug information is not clearly visible? ---> see picture
May you tell me if the frequency scanning operation seems normal to you (I have repaired the displays)? --->see the vid¨¦o

Thank's for your returns

cdt
File Notifications #file-notice

[email protected] Notification
 

The following files have been uploaded to the Files area of the [email protected] group.

By: Ken Eckert <eckertkp@...>

The following files have been uploaded to the Files area of the [email protected] group.

By: Ken Eckert <eckertkp@...>
Scope Probe parts

 

Anyone have any good reasonably priced sources for scope probe parts?
Looking for hook tip for Agilent HP 1160 mini probe among other things.
The recent ebay listings seem to be missing the hook tip in the accessories cases.

Wally KC9INK
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