I've been going through my HP-IB interface cards and found one made by TransERA. Does anyone know if this is software compatible with the NI or HP cards? It fits an 8 bit ISA slot and has a NI LSIC one it and it's a "GPIB Model 900".
|
Re: FS: Micronetics M3500-0916S VCO 900-1600MHz
hi pete
im interrest for some can you pls give me yr personal e mail
thanks
samir
From: Peter Loron
Sent: Tuesday, October 06, 2009 8:02 PM
To: hp_agilent_equipment@...
Subject: [hp_agilent_equipment] FS: Micronetics M3500-0916S VCO 900-1600MHz
I have a large lot of new Micronetics M3500-0916S surface mount VCO
modules, 900-1600MHz available for sale. Asking $3 each.
-Pete
|
Good counter...I have 2 for sale 1 working and one for parts (only needs
sampler to be good).
Pete WA2ODO
Steve wrote:
toggle quoted message
Show quoted text
Anyone have experience -- good or bad -- with the HP5343A counter?
Thinking about acquiring one. The specs indicate it will meet my needs.
Just wondering if anyone out there has hands-on experience with this
model and what you thought of it.
Thanks.
Steve K8JQ
--
Read The Patriot Post
hppt://PatriotPost.US/Subscribe/ <hppt://PatriotPost.US/Subscribe/>
Vertitas vos Liberabit
|
Excellent counter if you are interested
in microwaves. No false locks not easily mistaken by FM
or unstable sources, very sensitive and easy to maintain.
If you're after lower freq's <1GHz.
this is not the best one you could get
(on universal counters you have much better).
Luis Cupido
ct1dmk.
Steve wrote:
toggle quoted message
Show quoted text
Anyone have experience -- good or bad -- with the HP5343A counter?
Thinking about acquiring one. The specs indicate it will meet my needs. Just wondering if anyone out there has hands-on experience with this model and what you thought of it.
Thanks.
Steve K8JQ
|
Anyone have experience -- good or bad -- with the HP5343A counter?
Thinking about acquiring one. The specs indicate it will meet my needs. Just wondering if anyone out there has hands-on experience with this model and what you thought of it.
Thanks.
Steve K8JQ
--
Read The Patriot Post
hppt://PatriotPost.US/Subscribe/ Vertitas vos Liberabit
|
FS: Micronetics M3500-0916S VCO 900-1600MHz
I have a large lot of new Micronetics M3500-0916S surface mount VCO modules, 900-1600MHz available for sale. Asking $3 each.
-Pete
|
This would be my guess as well. Fuses do regularly fail from fatigue, and
I've even manage to collect (and "fix") numerous items because of that.
Look carefully at the blown fuse, and if it visually looks pretty good, with
perhaps a visible hairline break, that's likely the cause. However, if you
see signs of melting, like small blobs on the open ends, or signs of metal
deposition on the walls, I'd be concerned that there was a "real" failure.
Daun
_____
From: hp_agilent_equipment@...
[mailto:hp_agilent_equipment@...] On Behalf Of J. Forster
Sent: Tuesday, October 06, 2009 1:00 PM
To: hp_agilent_equipment@...
Subject: Re: [hp_agilent_equipment] Re: Worried about 141T
In college, I was interested in building high power audio amps. (I have
since outgrown such foolishness). Anyway, big power transistors were
EXPENSIVE, like $30 in the late 1960s... a LOT of money.
To avoid frying them, I fused the circuit w/ 3AG fuses. That worked fine,
but every so often a fuse would blow w/o explaination. I chased this for
days w/o success. Eventually, I was testing the thing from a low freqency
sine generator at a Hz or two and I noticed the fuse wire was alternately
heating (and bowing) then cooling (and straightning), and deduced they
were failing by metal fatigue.
The same thing could be happnng here. When the unit is turned on, the fuse
may briefly heat and then cool... eventuall leading to a fatigue failure
at some random time, for no apparent cause.
FWIW,
-John
=================
toggle quoted message
Show quoted text
Eventually both fuses of the IF section had blown as a matter of
surge protection. My house is right next to a transformer site from
the electrical regulator (20.000V transformed downto 220V) and our
power supply in the house is quite unstable.
Since I often disconnect and reconnect the power I suspect a surge
took place after reconnecting the power blowing out both fuses. I'll
go out and see if I can find a good surge protector or whip
something up myself. Since you're very close to the transformer substation, you probably
have the best (lowest impedance / highest voltage / best stability)
power available on that circuit. People downstream from you only have
it worse. Or, in other words, I fail to see how being close to the
transformer makes the power supply in your house "unstable" -- on the
contrary, your "predicament" is usually desirable!
I'd argue that you don't really know what caused the fuses to blow. I
suspect that unless you completely clear the reference circuit as
pointed out by Chris Trask/Al Jamison in their posts, that's still
suspect. It must be a common failure mode. I don't know what supply a
141T uses, but I have never ever had fuses blow in otherwise in spec
equipment blow due to a surge other than nearby lightning hit. If the
fuses blow on rather commonplace power line voltage fluctuations, then
either the design choices for the fuses (or other things) were wrong
from day one, or something in your equipment is consuming too much
power -- either in normal operation, or on during startup transients.
Cheers, Kuba
------------------------------------
Yahoo! Groups Links
|
Re: Question RE: Hp1631D GPIB
Hi,
Looking at page 10-5 of the 1631D manual, what you
are saying about sending back the data is my
understanding as well. It could be a manual typo.
in the format of the reply.
A few moons ago, I peeked at the fw. code in the ROMs
of my 1631D and have labelled quite a few things.
I have the command dispatch table for example and
a few other routines labeled (try the undocumented
HPIB revision command "RV" for fun). Anyway, the
information in my file might be of help in your
situation as I have the command "TT" broken down.
What kind of control program are you writing,
if I may ask?
Regards,
-Benoit
toggle quoted message
Show quoted text
--- In hp_agilent_equipment@..., "stychokiller" <jimbot@...> wrote:
I'm currently writing a program to control my Hp1631D Logic Analyzer.
When I send the TA;, TS; or TT; commands, the returned data always contains a CRC and Revision Code value of 0. Does anyone know if this is correct behavior or whether the Manual is erroneous about where in the data the CRC and RevCode fields are located?
According to the manual, I should be able to just send whatever the Analyzer gave me back through the GPIB bus and have the Analyzer reinstate the settings it's been given. I'm under the impression that the Analyzer will try to verify the CRC that it receives, so the CRC has to be correct (or is this an invalid assumption?).
|
In college, I was interested in building high power audio amps. (I have
since outgrown such foolishness). Anyway, big power transistors were
EXPENSIVE, like $30 in the late 1960s... a LOT of money.
To avoid frying them, I fused the circuit w/ 3AG fuses. That worked fine,
but every so often a fuse would blow w/o explaination. I chased this for
days w/o success. Eventually, I was testing the thing from a low freqency
sine generator at a Hz or two and I noticed the fuse wire was alternately
heating (and bowing) then cooling (and straightning), and deduced they
were failing by metal fatigue.
The same thing could be happnng here. When the unit is turned on, the fuse
may briefly heat and then cool... eventuall leading to a fatigue failure
at some random time, for no apparent cause.
FWIW,
-John
=================
toggle quoted message
Show quoted text
Eventually both fuses of the IF section had blown as a matter of
surge protection. My house is right next to a transformer site from
the electrical regulator (20.000V transformed downto 220V) and our
power supply in the house is quite unstable.
Since I often disconnect and reconnect the power I suspect a surge
took place after reconnecting the power blowing out both fuses. I'll
go out and see if I can find a good surge protector or whip
something up myself. Since you're very close to the transformer substation, you probably
have the best (lowest impedance / highest voltage / best stability)
power available on that circuit. People downstream from you only have
it worse. Or, in other words, I fail to see how being close to the
transformer makes the power supply in your house "unstable" -- on the
contrary, your "predicament" is usually desirable!
I'd argue that you don't really know what caused the fuses to blow. I
suspect that unless you completely clear the reference circuit as
pointed out by Chris Trask/Al Jamison in their posts, that's still
suspect. It must be a common failure mode. I don't know what supply a
141T uses, but I have never ever had fuses blow in otherwise in spec
equipment blow due to a surge other than nearby lightning hit. If the
fuses blow on rather commonplace power line voltage fluctuations, then
either the design choices for the fuses (or other things) were wrong
from day one, or something in your equipment is consuming too much
power -- either in normal operation, or on during startup transients.
Cheers, Kuba
------------------------------------
Yahoo! Groups Links
|
Eventually both fuses of the IF section had blown as a matter of surge protection. My house is right next to a transformer site from the electrical regulator (20.000V transformed downto 220V) and our power supply in the house is quite unstable.
Since I often disconnect and reconnect the power I suspect a surge took place after reconnecting the power blowing out both fuses. I'll go out and see if I can find a good surge protector or whip something up myself. Since you're very close to the transformer substation, you probably have the best (lowest impedance / highest voltage / best stability) power available on that circuit. People downstream from you only have it worse. Or, in other words, I fail to see how being close to the transformer makes the power supply in your house "unstable" -- on the contrary, your "predicament" is usually desirable! I'd argue that you don't really know what caused the fuses to blow. I suspect that unless you completely clear the reference circuit as pointed out by Chris Trask/Al Jamison in their posts, that's still suspect. It must be a common failure mode. I don't know what supply a 141T uses, but I have never ever had fuses blow in otherwise in spec equipment blow due to a surge other than nearby lightning hit. If the fuses blow on rather commonplace power line voltage fluctuations, then either the design choices for the fuses (or other things) were wrong from day one, or something in your equipment is consuming too much power -- either in normal operation, or on during startup transients. Cheers, Kuba
|
3585B - LO unlocked - repair history
Hi all,
Just wanted to share my repair efforts on my HP3585:
error on display: "Local osc unlocked" + beep
The LED's on the A34 board pointed A27 as the first thing to look at.
I found there was an error in the switching between single loop and multiple loop (SL /ML).
However the cause turned out to be on the A28 board.
U3 is a quad comparator LM339 that failed to convert the levels towards the A27 board.
After replacement of the LM339, everything is fine again.
I found out that it is much faster to analyze the LED's and look for the boards that are pointed to. Using the troubleshooting diagrams in the manual for section B is very very time consuming and in my case pointed to some other things.
Also be careful when removing / inserting the SMB cables on top of the B section boards. I destroyed a SMB male pin and had to replace the connector...
Is my second repair... a first problem was no HV present (4 and 12kV) which I reported in an earlier mail.
Luckily the HP3585B CRT is still in excellent shape and is very bright and sharp. Hope I can enjoy the instrument further.
regards from Mike
|
Question RE: Hp1631D GPIB
I'm currently writing a program to control my Hp1631D Logic Analyzer.
When I send the TA;, TS; or TT; commands, the returned data always contains a CRC and Revision Code value of 0. Does anyone know if this is correct behavior or whether the Manual is erroneous about where in the data the CRC and RevCode fields are located?
According to the manual, I should be able to just send whatever the Analyzer gave me back through the GPIB bus and have the Analyzer reinstate the settings it's been given. I'm under the impression that the Analyzer will try to verify the CRC that it receives, so the CRC has to be correct (or is this an invalid assumption?).
|
I have an HP8657B that has developed an odd behavior. Perhaps someone on the list can advise me as to what is going on.
There is a dip in the output level that centers around 53.5MHz. Using 10MHz as a reference, the output drops about 12dB at 53.5MHz. The falloff in level begins around 40MHz, bottoms out at 53.5MHz and is back to normal at about 70MHz.
I have observed this output "hole" on two power meters, both of which work OK on an HP8657A.
Is there a cockpit error that can cause this "hole" in the HP8657B's output? Or is there a known failure mode that can cause it? Other thoughts?
Thanks.
Steve K8JQ
--
Read The Patriot Post
hppt://PatriotPost.US/Subscribe/ Vertitas vos Liberabit
|
WTB: Power Supply for HP/Agilent 859XE Series SAs.
Subject says it all; I need a Power Supply for an HP 859XE Spectrum Analyzer. Even not working is fine, although not if boards are badly charred.
Thanks,
Victor
|
Greg, Could you explain a bit more about how you would make gears for the 8640. I understand the cracking is a rather common problem. Mine has cracks but is still holding together and functioning. That said, a spare set of gears would be a good investment should bad things happen. Walter From: tmsteal Sent: Sunday, October 04, 2009 9:29 PM To: hp_agilent_equipment@... Subject: [hp_agilent_equipment] Re: 8640 powerdoubler Greg, I would be intersted in two sets of gears if available. Let me know. Thanks --- In hp_agilent_equipment@..., Greg Bowne <gbowne1@...> wrote:
I recently learned my 8640B does 1GHz. Seems when I built the unit, it included the high output module which was one I found installed in the stack of as/is units I bought pretty cheap at a hamfest.
Anyone need extra gears for their 8640? I'll make some if anyone wants them.
Greg
>>> The information contained in this e-mail transmission is privileged and/or confidential intended solely for the exclusive use of the individual addressee. If you are not the intended addressee you are hereby notified that any retention, disclosure or other use is strictly prohibited. If you have received this notification in error, please immediately contact the sender and delete the material.
________________________________
From: Greg Werstiuk <greg_werstiuk@...>
To: hp_agilent_equipment@...
Sent: Thursday, September 10, 2009 8:22:29 PM
Subject: RE: [hp_agilent_equipment] 8640 powerdoubler
Internal. Actually an integral part of the output power amplifier assembly.
Complete output module is changed to extend an 8640 to 1024MHz.
-
Greg
_____
From: hp_agilent_equipmen t@yahoogroups. com
[mailto:hp_agilent_equipmen t@yahoogroups. com] On Behalf Of fredschneider2001
Sent: Thursday, September 10, 2009 11:59 AM
To: hp_agilent_equipmen t@yahoogroups. com
Subject: [hp_agilent_ equipment] 8640 powerdoubler
I read in the HP brochure which Pete's link pointed to that the 8640 did
512-1050MHz through a powerdoubler.
I have that generator but I alway wondered if the powerdoubler is inside or
external. I thought the latter but now I'm in doubt. If external what was
the partnumber so I can find a schematic.
|
Re: WTB 8753C Power Supply Module
John, Please contact me - I have a working one. Steve ________________________________ From: oh8nj2001 <jahla@...> To: hp_agilent_equipment@... Sent: Saturday, October 3, 2009 4:21:19 PM Subject: Re: [hp_agilent_equipment]WTB 8753C Power Supply Module ? Hi John According to Google there seem to be several sources for 08753-60098. Also might want to contact . ebay.com/ yixunhk/ - I have managed to get some 8753 parts from them. 73, Jaakko oh8nj --- In hp_agilent_equipmen t@yahoogroups. com, "jbarnes" <jbarnes@... > wrote:
Hi Group!!
I have a 8753C VNA that is missing the power supply assembly A15.
The part number is 08753-60098 or 08753-69098.
Does anybody have a spare one for sale?
I will consider a dead unit.
Thanks for your help with this.
Sincere regards,
John VE3XRY
____________ _________ _________ _________ _________ _________ _
Sent via the WebMail system at aztec-net.com
[Non-text portions of this message have been removed]
|
Hi Paul, On 10/5/09, Paul Read <paulr@...> wrote:
Hi Francesco and Guys,
I just had a look at the uploaded image, my first reaction was "there's magnet somewhere near", is it possible that a general De-gauss might help. I know that the main chassis is all aluminium, and all the bits inside the CRT should be non magnetic...but you never know.
Yes, this has been suggested also by others. The shield should be non magnetic, but I have to test it. The other only option is that someone placed a magnet between the shield and the CRT. I have to inspect it. But this seems higly unlikely :-) Thanks and best regards. Francesco
|
Hi Francesco and Guys,
I just had a look at the uploaded image, my first reaction was "there's magnet somewhere near", is it possible that a general De-gauss might help. I know that the main chassis is all aluminium, and all the bits inside the CRT should be non magnetic...but you never know.
Best of luck.
Kind regards
Paul
[cid:image001.jpg@...]
Paul Read
RF Engineer
Ext: 235
Wood & Douglas Ltd
Lattice House
Baughurst
Tadley
Hants RG26 5LP
United Kingdom
Tel : +44 (0) 118 981 1444
Fax: +44 (0) 118 981 1567
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|
Greg,
I would be intersted in two sets of gears if available.
Let me know.
Thanks
toggle quoted message
Show quoted text
--- In hp_agilent_equipment@..., Greg Bowne <gbowne1@...> wrote:
I recently learned my 8640B does 1GHz.? Seems when I built the unit, it included the high output module which was one I found installed in the stack of as/is units I bought pretty cheap?at a hamfest.
Anyone need?extra gears for their 8640??I'll make some if anyone wants them.
Greg
?>>> The information contained in this e-mail transmission is privileged and/or confidential intended solely for the exclusive use of the individual addressee. If you are not the intended addressee you are hereby notified that any retention, disclosure or other use is strictly prohibited. If you have received this notification in error, please immediately contact the sender and delete the material.
________________________________
From: Greg Werstiuk <greg_werstiuk@...>
To: hp_agilent_equipment@...
Sent: Thursday, September 10, 2009 8:22:29 PM
Subject: RE: [hp_agilent_equipment] 8640 powerdoubler
?
Internal. Actually an integral part of the output power amplifier assembly.
Complete output module is changed to extend an 8640 to 1024MHz.
-
Greg
_____
From: hp_agilent_equipmen t@yahoogroups. com
[mailto:hp_agilent_equipmen t@yahoogroups. com] On Behalf Of fredschneider2001
Sent: Thursday, September 10, 2009 11:59 AM
To: hp_agilent_equipmen t@yahoogroups. com
Subject: [hp_agilent_ equipment] 8640 powerdoubler
I read in the HP brochure which Pete's link pointed to that the 8640 did
512-1050MHz through a powerdoubler.
I have that generator but I alway wondered if the powerdoubler is inside or
external. I thought the latter but now I'm in doubt. If external what was
the partnumber so I can find a schematic.
|
Hi,
I notice that you have two RF Sections for your 141T and so may be just
one IF Section. If so, here's what can happen and has done to me if I've
been swapping sections.
The D-shell connectors between RF and IF is a lousy fit and mounted on a
flimsy bracket. When the two meet they come together at an angle and
sometimes the shell of one gets caught up on the pins of the other
grounding them. Result - open fuses on switch-on; I kid you not!
Power surge it may have been but don't forget to see that the connectors
are seated fully when changing things around.
Cheers - Joe G3LLV
"Been there, done that but I couldn't wash it off the T-shirt."
|
