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Re: HP7004B X-Y plotter schematic

 

HP used to include a little vial of silicone oil for
lubricating the slide wire on X-Y plotters. It is a
nasty stuff that creeps everywhere.

I think I would take Richard's idea and just use Faderlube.
It is very good at eliminating noise on pots... which is
much the same problem here.

-Chuck Harris

Dave McGuire wrote:


? I was about to say the same thing.? DeOxit, would also be good, this being a metal
element.

????????????? -Dave

On 10/17/20 2:00 PM, Richard Knoppow wrote:
??? I wonder if Caig Faderlub would be good for this.

On 10/17/2020 9:38 AM, John Annison wrote:

³§³Ù±ð±¹±ð¡­¡­¡­..
Re: HP7004B X-Y plotter schematic

 

I was about to say the same thing. DeOxit, would also be good, this being a metal element.

-Dave

On 10/17/20 2:00 PM, Richard Knoppow wrote:
?? I wonder if Caig Faderlub would be good for this.
On 10/17/2020 9:38 AM, John Annison wrote:

³§³Ù±ð±¹±ð¡­¡­¡­..

As pointed out the unstable X or Y axis (jitter) is caused by poor contact to the long liner resistors along the X and Y axis. The resistors and the sliding contact brush would have to be cleaned.

At the time we would use alcohol and so forth to clean both areas. The resistors would sometimes be gently and carefully cleaned with a soft rubber eraser.

As for schematics, I am retired from the industry, but this is old equipment and would think that information should be around.

Good luck
--
Dave McGuire, AK4HZ
New Kensington, PA
Re: HP7004B X-Y plotter schematic

 

I wonder if Caig Faderlub would be good for this.

On 10/17/2020 9:38 AM, John Annison wrote:

³§³Ù±ð±¹±ð¡­¡­¡­..

As pointed out the unstable X or Y axis (jitter) is caused by poor contact to the long liner resistors along the X and Y axis. The resistors and the sliding contact brush would have to be cleaned.

At the time we would use alcohol and so forth to clean both areas. The resistors would sometimes be gently and carefully cleaned with a soft rubber eraser.

As for schematics, I am retired from the industry, but this is old equipment and would think that information should be around.

Good luck
--
Richard Knoppow
dickburk@...
WB6KBL
Re: HP7004B X-Y plotter schematic

 

³§³Ù±ð±¹±ð¡­¡­¡­..

?

As pointed out the unstable X or Y axis (jitter) is caused by poor contact to the long liner resistors along the X and Y axis. The resistors and the sliding contact brush would have to be cleaned.

At the time we would use alcohol and so forth to clean both areas. The resistors would sometimes be gently and carefully cleaned with a soft rubber eraser.

As for schematics, I am retired from the industry, but this is old equipment and would think that information should be around.

Good luck
Re: OT: what are these connectors?

 

The bayonet ones are still used. One application is aircraft capacitance type fuel contents probes. Typically a probe will have 3 in? combination of 2 and three lug and reversed polarity. Not cheap as aircraft parts.
Re: OT: what are these connectors?

 

The mini-BNC was used in the R-390A of the same vintage.? Matching connectors used to be available from Fair Radio.?

Ed? W2EMN


-----Original Message-----
From: DF6NA Rainer <df6na@...>
To: [email protected]; saipan1959@...
Sent: Sat, Oct 17, 2020 1:35 am
Subject: Re: [HP-Agilent-Keysight-equipment] OT: what are these connectors?

Hi Pete,

the smaller one (J1) looks like what we call Mini-BNC.

73, Rainer


Am 17.10.2020 um 03:26 schrieb saipan59 (Pete):
Can anyone identify the connectors described in the attached picture? Those Cannon and Dage part numbers are not showing up for me. Unfortunately, that's the only picture and data that I have.
Here's what I know:
The device is a CIA "bug" transmitter, circa 1960. RF signal is in the range of 55 to 81 MC.
Based on the device's overall dimensions, the body diameter of J2 is about 7mm, while J1 is about 6mm.
They might be a bayonet type, like a BNC, but smaller (and two different sizes).
The power connector is not shown in the picture - it's on the end of a cable on the left side.

Thanks,
Pete
Re: OT: what are these connectors?

 

Thanks everyone!

Pete
Re: OT: what are these connectors?

 

BSM connectors.? See?.? Tek used them on some sampling gear.? Good luck finding any mates.? I have plans to change mine out for SMAs.? Someday...

Jim Ford

------ Original Message ------
From: "DF6NA Rainer" <df6na@...>
Sent: 10/16/2020 10:35:24 PM
Subject: Re: [HP-Agilent-Keysight-equipment] OT: what are these connectors?

Hi Pete,

the smaller one (J1) looks like what we call Mini-BNC.

73, Rainer


Am 17.10.2020 um 03:26 schrieb saipan59 (Pete):
Can anyone identify the connectors described in the attached picture? Those Cannon and Dage part numbers are not showing up for me. Unfortunately, that's the only picture and data that I have.
Here's what I know:
The device is a CIA "bug" transmitter, circa 1960. RF signal is in the range of 55 to 81 MC.
Based on the device's overall dimensions, the body diameter of J2 is about 7mm, while J1 is about 6mm.
They might be a bayonet type, like a BNC, but smaller (and two different sizes).
The power connector is not shown in the picture - it's on the end of a cable on the left side.

Thanks,
Pete
Re: OT: what are these connectors?

 

¿ªÔÆÌåÓý

Hi Pete,

the smaller one (J1) looks like what we call Mini-BNC.

73, Rainer


Am 17.10.2020 um 03:26 schrieb saipan59 (Pete):

Can anyone identify the connectors described in the attached picture? Those Cannon and Dage part numbers are not showing up for me. Unfortunately, that's the only picture and data that I have.
Here's what I know:
The device is a CIA "bug" transmitter, circa 1960. RF signal is in the range of 55 to 81 MC.
Based on the device's overall dimensions, the body diameter of J2 is about 7mm, while J1 is about 6mm.
They might be a bayonet type, like a BNC, but smaller (and two different sizes).
The power connector is not shown in the picture - it's on the end of a cable on the left side.

Thanks,
Pete

IMG_20201017_072531.jpg
IMG_20201017_072800.jpg

Re: OT: what are these connectors?

 

Looks like type MB connector, not all that rare and, period correct.

?

I'll dig through an old cannon book for the others.

?

-J-

-----Original Message-----
From: "saipan59 (Pete)" <saipan1959@...>
Sent: Friday, October 16, 2020 9:26pm
To: [email protected]
Subject: [HP-Agilent-Keysight-equipment] OT: what are these connectors?

Can anyone identify the connectors described in the attached picture? Those Cannon and Dage part numbers are not showing up for me. Unfortunately, that's the only picture and data that I have.
Here's what I know:
The device is a CIA "bug" transmitter, circa 1960. RF signal is in the range of 55 to 81 MC.
Based on the device's overall dimensions, the body diameter of J2 is about 7mm, while J1 is about 6mm.
They might be a bayonet type, like a BNC, but smaller (and two different sizes).
The power connector is not shown in the picture - it's on the end of a cable on the left side.

Thanks,
Pete
Re: HP7004B X-Y plotter schematic

 

Thanks Bruce, I will do that with those slide wire resistors. On the main pcb there are two brown blocks, one of these is badly burnt, if they are power resistors as I suspect it is probably still ok, this is another reason I was looking for the schematic.?
Cheers Steve

On Sat, 17 Oct 2020, 12:50 pm Bruce, <bruce@...> wrote:

If fit is like the plotters I used in college, there are wires that?
the carriage slides along to sense its position - clean them?
carefully. The symptom is "vibrating" or spastic motion of the x r y?
carriage.? The other possible problem if it is vibrating could be the?
damping adjustments.
Cheers!

Bruce
? oting Steve Dench <sjdench48@...>:

> Hi, would anyone have a schematic for the HP7004B plotter, I went to?
> use it the other day to do some plots from my 141T and it no longer?
> wants to play the game. I checked all the electrolytic capacitors?
> (considering its age) and replaced some to no avail, all I managed?
> to do was introduce another fault, pen solenoid no longer works.?
> Original fault was X very unstable. All that I can find by searching?
> the internet was a user/operator manual.
> Thanks Steve.
>
>
>








Re: HP7004B X-Y plotter schematic

 

If fit is like the plotters I used in college, there are wires that the carriage slides along to sense its position - clean them carefully. The symptom is "vibrating" or spastic motion of the x r y carriage. The other possible problem if it is vibrating could be the damping adjustments.
Cheers!

Bruce
oting Steve Dench <sjdench48@...>:

Hi, would anyone have a schematic for the HP7004B plotter, I went to use it the other day to do some plots from my 141T and it no longer wants to play the game. I checked all the electrolytic capacitors (considering its age) and replaced some to no avail, all I managed to do was introduce another fault, pen solenoid no longer works. Original fault was X very unstable. All that I can find by searching the internet was a user/operator manual.
Thanks Steve.
OT: what are these connectors?

 

Can anyone identify the connectors described in the attached picture? Those Cannon and Dage part numbers are not showing up for me. Unfortunately, that's the only picture and data that I have.
Here's what I know:
The device is a CIA "bug" transmitter, circa 1960. RF signal is in the range of 55 to 81 MC.
Based on the device's overall dimensions, the body diameter of J2 is about 7mm, while J1 is about 6mm.
They might be a bayonet type, like a BNC, but smaller (and two different sizes).
The power connector is not shown in the picture - it's on the end of a cable on the left side.

Thanks,
Pete
HP7004B X-Y plotter schematic

 

Hi, would anyone have a schematic for the HP7004B plotter, I went to use it the other day to do some plots from my 141T and it no longer wants to play the game. I checked all the electrolytic capacitors (considering its age) and replaced some to no avail, all I managed to do was introduce another fault, pen solenoid no longer works. Original fault was X very unstable. All that I can find by searching the internet was a user/operator manual.
Thanks Steve.
Re: Agilent 54831M

 

On Fri, Oct 16, 2020 at 03:52 PM, Bostonman wrote:
Keep in mind, this booting issue began before I entered BIOS, however, since the issue began, I've changed the boot order several times in hopes to solve the issue.
Sorry, haven't read all messages in this thread, but did you get your device with these messages showing?
In that case it might come from a networked environment, so it is possible the network interface has the PXE bootrom installed.
In that case you need to remove that ROM from the network interface, or there may be a jumper/dipswitch to enable/disable network boot on the network interface.
If is has a PC like motherboard, you might even (temporarily) remove the network interface.

If your machine was working normally (I mean booting from disk like it should), and it stopped booting from disk, there must be something else wrong with your replacement disk, like the bootpartition not being active, etc.
There are tools, like?diskpart from Easy?Recovery,?that can do that for you.?

Wish I could help you more,

Leo
Re: HP 5420A/B and HP5423A Signal / Structural Analyzers

 

Has any progress been made on this project? I have a 5423A system, it would be a hoot to have it running.
Re: Agilent 54831M

Bostonman
 

I haven't looked for other settings such as Network booting or whatever the term(s) are that I found when searching for this issue, however, I know the boot order is/was for the hard drive.

The 3.5" floppy and CD ROM are disconnected, so I believe I eliminated them from the boot sequence and just had the hard drive. The boot options include several hard drive and USB numbers I think. Maybe HDD1, HDD2, USB-X....

Keep in mind, this booting issue began before I entered BIOS, however, since the issue began, I've changed the boot order several times in hopes to solve the issue.
Re: Agilent 54831M

 

The PXE messages are related to a failed Network boot. (People would call this Pixie boot)

Usually in a bios you can set the boot order:

You want floppy ( if available) first,
CD next ( like in a normal PC),
then harddisk,
and last network.

Older Old school PC's would try to always boot from a network, as soon as the PXE ROM was inserted in the network card.
In that case the bios settings would not affect boot order, you would need to remove the network boot ROM first to boot from bios devices.

Remember, this was the case with "real" PC's, not sure how this relates to your machine.

Good luck, stay safe,

Leo
Re: Agilent 54831M

 

The WinScopes tend not to be very highly regarded..

-Dave

On 10/15/20 9:32 PM, Bruce wrote:
Doesn't ANYONE in this group have a copy of the system disks?? Once you can boot from anything, things get a lot easier.
Quoting Bostonman <bostonman73@...>:

I was able to burn the image.

First I tried burning it onto an SSD connected to the rear USB through an adapter. Upon powering, the scope seemed to freeze unless I hit 'tab' to bypass the boot screen. At this point I was able to tell BIOS to boot off the USB (I tried all the ones available) and it wouldn't boot.

Today I tried burning the image to a 3.5" IDE. I connected it to the IDE 44-pin cable and powered the drive via an external supply.

In both cases I got the same messages:

PXE-E61: Media test failure, check cable
PXE-M0F: Exiting Intel PXE ROM

Intel (R) Boot Agent Version 4.0.14
PKE-E61: Media test failure, check cable
PXE-M0F: Exiting Intel PXE ROM
DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER

I'll try turning off something related to PKE in the BIOS, but I'm uncertain why I'm getting this error message. It seems the system isn't seeing the drive, but I've tried the original drive, the SSD, and USB. Also, this issue began after I opened the cover and poked at the cheap hard drive (3.5" to 2.5") adapter; I never tinkered with the BIOS.


--
Dave McGuire, AK4HZ
New Kensington, PA
Re: Agilent 54831M

 

Doesn't ANYONE in this group have a copy of the system disks? Once you can boot from anything, things get a lot easier.


Quoting Bostonman <bostonman73@...>:

I was able to burn the image.

First I tried burning it onto an SSD connected to the rear USB through an adapter. Upon powering, the scope seemed to freeze unless I hit 'tab' to bypass the boot screen. At this point I was able to tell BIOS to boot off the USB (I tried all the ones available) and it wouldn't boot.

Today I tried burning the image to a 3.5" IDE. I connected it to the IDE 44-pin cable and powered the drive via an external supply.

In both cases I got the same messages:

PXE-E61: Media test failure, check cable
PXE-M0F: Exiting Intel PXE ROM

Intel (R) Boot Agent Version 4.0.14
PKE-E61: Media test failure, check cable
PXE-M0F: Exiting Intel PXE ROM
DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER

I'll try turning off something related to PKE in the BIOS, but I'm uncertain why I'm getting this error message. It seems the system isn't seeing the drive, but I've tried the original drive, the SSD, and USB. Also, this issue began after I opened the cover and poked at the cheap hard drive (3.5" to 2.5") adapter; I never tinkered with the BIOS.
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