Re: problems with 8555A - thanks!
Thank You ,I taught Paolo sent the manual?to be hosted?on your web site. ? ________________________________ From: SAL CORNACCHIA <salccor@...> To: hp_agilent_equipment@... Sent: Fri, October 9, 2009 11:58:53 AM Subject: Re: [hp_agilent_equipment] Re: problems with 8555A - thanks! Hi Jose, I cannot find the HP 8555A Manual on your web page. ?Best regards, Sal C. Cornacchia Electronic RF Microwave Engineer ( Ret.) ________________________________ From: Jose V. Gavila <eb5agv@...> To: hp_agilent_equipment@... Sent: Fri, October 9, 2009 11:34:29 AM Subject: Re: [hp_agilent_equipment] Re: problems with 8555A - thanks! ? Hi all! That's perfect, I'll send you the file with a PM
Thank you and regards
Paolo OK, received, thanks! I have created a new WEB page for it at: . com/doc_test. htm I can host similar documents there, if anybody is interested. Best regards, JOSE ------------ --------- --------- --------- --------- - 73 EB5AGV - JOSE V. GAVILA IM99sm La Canyada - Valencia (SPAIN) Vintage Radio and Test Equipment . com RadioRepair BLOG . blogspot. com/ European Boatanchors List . yahoo.com/ group/euro_ ba_swap Amateur Repairs List . yahoo.com/ group/amateur- repairs [Non-text portions of this message have been removed]
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For those of you who have purchased a 3455A service manual from us in the past and who we might have missed via direct email.
We have just finished with an upgraded scan with full size ( up to 34x11) scans of all the foldouts , no pieced schematics . send us a direct email and we will arrange to get you an upgraded copy
Cheers
Dave
Artekmedia
--
Dave & Lynn Henderson
ArtekMedia
Out-of-Print Technical Manuals
www.ArtekMedia.com
manuals@...
651-269-4265
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Re: problems with 8555A - thanks!
Hi Sal, I cannot find the HP 8555A Manual on your web page. Well, what I have put online is just a document about A10 module wiring, exactly this one: Best regards, JOSE ------------------------------------------------- 73 EB5AGV - JOSE V. GAVILA IM99sm La Canyada - Valencia (SPAIN) Vintage Radio and Test Equipment RadioRepair BLOG European Boatanchors List Amateur Repairs List
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Re: HP680M chart recorder ink.
Not off hand, but the same ink in used in many recorders. I'd look for a
company that sells chart paper, etc. to the process control folks. I'm
sure not all process control records are digital these days.
-John
================
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Greetings to all.
Does anyone know where I can purchase the correct ink for my still
functioning (but inkless) 680M chart recorder?
I am downunder but would buy from anywhere in the world.
Thanks for the read,Brian G.
------------------------------------
Yahoo! Groups Links
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Re: Antialiasing filter for a digital scope
Once the aliasing has occurred, it is difficult, if not impossible, to tell what is signal, and what is aliasing. -Chuck Harris David C. Partridge wrote: Am I being dense Kuba, but why not do that in the digital post-processing
rather than in the front end?
I'm impressed at the concept of a home brew 1GS/s digital scope!
How many of the ADCs are you running in parallel?
Dave -----Original Message-----
From: hp_agilent_equipment@...
[mailto:hp_agilent_equipment@...] On Behalf Of Kuba Ober
Sent: 09 October 2009 16:44
To: TekScopes2@...
Cc: hp_agilent_equipment@...
Subject: [hp_agilent_equipment] Antialiasing filter for a digital scope
I'm looking for input regarding design of an antialiasing filter for a
homebrew DSO. ...
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Re: Antialiasing filter for a digital scope
Am I being dense Kuba, but why not do that in the digital post-processing
rather than in the front end?
I'm impressed at the concept of a home brew 1GS/s digital scope!
How many of the ADCs are you running in parallel?
Dave
toggle quoted message
Show quoted text
-----Original Message-----
From: hp_agilent_equipment@...
[mailto:hp_agilent_equipment@...] On Behalf Of Kuba Ober
Sent: 09 October 2009 16:44
To: TekScopes2@...
Cc: hp_agilent_equipment@...
Subject: [hp_agilent_equipment] Antialiasing filter for a digital scope
I'm looking for input regarding design of an antialiasing filter for a
homebrew DSO.
Thanks to the fairly recent Linear's ADCs I have a decent 12 bit 1Gs/s
sampler and I'm looking for something to go between the preamps and and the
sampler.
<snip>
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Re: problems with 8555A - thanks!
Hi Jose, I cannot find the HP 8555A Manual on your web page. ?Best regards, Sal C. Cornacchia Electronic RF Microwave Engineer ( Ret.) ________________________________ From: Jose V. Gavila <eb5agv@...> To: hp_agilent_equipment@... Sent: Fri, October 9, 2009 11:34:29 AM Subject: Re: [hp_agilent_equipment] Re: problems with 8555A - thanks! ? Hi all! That's perfect, I'll send you the file with a PM
Thank you and regards
Paolo OK, received, thanks! I have created a new WEB page for it at: . com/doc_test. htm I can host similar documents there, if anybody is interested. Best regards, JOSE ------------ --------- --------- --------- --------- - 73 EB5AGV - JOSE V. GAVILA IM99sm La Canyada - Valencia (SPAIN) Vintage Radio and Test Equipment . com RadioRepair BLOG . blogspot. com/ European Boatanchors List . yahoo.com/ group/euro_ ba_swap Amateur Repairs List . yahoo.com/ group/amateur- repairs [Non-text portions of this message have been removed]
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Antialiasing filter for a digital scope
I'm looking for input regarding design of an antialiasing filter for a homebrew DSO.
Thanks to the fairly recent Linear's ADCs I have a decent 12 bit 1Gs/s sampler and
I'm looking for something to go between the preamps and and the sampler.
Admittedly, a DSO would have different modes depending on what you want.
A "free and clear" bandwidth exceeding the Nyquist limit would be useful for
equivalent time sampling.
For realtime sampling, one needs something that falls off quickly from say
-3dB to -75dB between passband and Nyquist. This is to avoid aliasing and resulting
artifacts in the sampled signal.
So -3dB at 100MHz and -75dB at 500MHz -- that's roughly 35dB per octave, or sixth order.
Does anyone know of any existing designs/pointers/ideas?
So far I have found US patent 6268765, but I don't know yet how easy it would be to implement
discretely.
Cheers, Kuba
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Re: problems with 8555A - thanks!
Hi all! That's perfect, I'll send you the file with a PM
Thank you and regards
Paolo OK, received, thanks! I have created a new WEB page for it at: I can host similar documents there, if anybody is interested. Best regards, JOSE ------------------------------------------------- 73 EB5AGV - JOSE V. GAVILA IM99sm La Canyada - Valencia (SPAIN) Vintage Radio and Test Equipment RadioRepair BLOG European Boatanchors List Amateur Repairs List
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Re: problems with 8555A - thanks!
That's perfect, I'll send you the file with a PM
Thank you and regards
Paolo
Jose V. Gavila wrote:
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Hi Paolo,
If you agree, I can have it available in my WEB so everyone could
dowload it.
Best regards,
JOSE
===================================
Paolo Mantovani <pmthome@> wrote:
All,
BTW, I prepared a wiring map in PDF of the interconnections
inside the A10 board, one thing not covered by the manual.
If eventually someone would need it ..... -------------------------------------------------
73 EB5AGV - JOSE V. GAVILA
IM99sm La Canyada - Valencia (SPAIN)
Vintage Radio and Test Equipment
<>
RadioRepair BLOG
<>
European Boatanchors List
<>
Amateur Repairs List
<>
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Re: problems with 8555A - thanks!
Hello Paolo,
I would like to receive the file too.
Thank you,
Marcus
pp5ms@...
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----- Original Message ----- From: HP To: hp_agilent_equipment@... Sent: Friday, October 09, 2009 11:15 AM Subject: [hp_agilent_equipment] Re: problems with 8555A - thanks! Paolo, for me a copy, too, please. Thanks Peter hpdeutsch at gmx.de =================================== Paolo Mantovani <pmthome@> wrote: All, > > BTW, I prepared a wiring map in PDF of the interconnections inside the A10 board, one thing not covered by the manual. If eventually someone would need it .....
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Re: problems with 8555A - thanks!
Hi Paolo, If you agree, I can have it available in my WEB so everyone could dowload it. Best regards, JOSE ===================================
Paolo Mantovani <pmthome@> wrote:
All,
BTW, I prepared a wiring map in PDF of the interconnections
inside the A10 board, one thing not covered by the manual.
If eventually someone would need it ..... ------------------------------------------------- 73 EB5AGV - JOSE V. GAVILA IM99sm La Canyada - Valencia (SPAIN) Vintage Radio and Test Equipment RadioRepair BLOG European Boatanchors List Amateur Repairs List
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Re: problems with 8555A - thanks!
Paolo, for me a copy, too, please. Thanks Peter hpdeutsch at gmx.de =================================== Paolo Mantovani <pmthome@> wrote: All, BTW, I prepared a wiring map in PDF of the interconnections inside the A10 board, one thing not covered by the manual.
If eventually someone would need it .....
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HP8559A Log Amp adjustment problem
Dear Everybody :
Does anyone had the experience when adjustment of Log Amp ?
My question is:
When linear mode, align signal trace at top of graticule line with 800mV + offset voltae ( 30mV ) at A15TP1.
Change to 10dB/Div mode ,than adjust SLOPE VR A14R23 to get the same reading when Linear mode ( 830mV )at A15TP1.
Reduce the attenuator with 60dB level of IF signal 321.4MHz ( third converter input ), but cannot get reading of 230mV ( 200mV + 30mV offset voltage )by adjust offset VR A14R10 !!!
It seem A14R10 at the lowerest value to GND via R11 4640 ohm resistor !
Any idea for me !
REgard
Tony Cheung
OCT 9 2009
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Re: problems with 8555A - thanks!
Paolo,
could you send me the file?
jos.raven@...
thanks
Jos PA0AMX
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--- In hp_agilent_equipment@..., Paolo Mantovani <pmthome@...> wrote:
All,
I want to thank you all who replied.
I fixed the unit, the problem was a bad A2A5Q2 (B-C junction open) in
the 50MHz amplifier. Now it is well in spec on sensitivity and noise
sidebands. Frequency response is ok up to 2G, as I do not have
generators for higher frequencies.
The are still a couple of minor glitches I am investigating:
- sometimes the tuning stabilizer unlocks. Switching it off and on again
seems to cure the problem, then it may stay locked for hours or unlock
again shortly
- I noticed some spurs at the left (only, not at the right) of the LO
feedthrough, at 3-4-5MHz
BTW, I prepared a wiring map in PDF of the interconnections inside the
A10 board, one thing not covered by the manual. I tried to upload it in
the files section but it is full. If eventually someone would need it,
please let me know.
Thank you again and regards
Paolo
Paolo Mantovani wrote:
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Re: HP680M chart recorder ink.
I found some pressure sensitive chart paper for mine that gives a 'just useable' trace from the inkless original stylus.
But I'd like to get some proper chart paper and ink. I have a 680 and a 680M-both associated with 581 d/a converters.
More inclined to use a pc with appropriate interfaces than the 680s these days, but they are occasionally used in anger-especially for quick results.
DaveB, NZ
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----- Original Message ----- From: "Don Black" <jeans@...> To: <hp_agilent_equipment@...> Sent: Friday, October 09, 2009 7:44 PM Subject: Re: [hp_agilent_equipment] Re: HP680M chart recorder ink. You can download the HP 680 manual from here
<>.
I've got some red ink for Grass Valley polygraph recorders if you want
to try some. I've no idea how it compares to your HP but I imagine it's
similar. PM me your mail address and I'll post a bottle if it's OK to
send by Australian Post.
Don Black.
HP wrote:
"Brian Goldsmith" <brian.goldsmith@...> wrote:
Does anyone know ... for my functioning 680M chart recorder?
------------------------>
Hi Brian,
I have an HP 680, too.
Do you have a Manual for the Chart Recorder ?
I have nothing for this Equipment.
Regards
Peter
------------------------------------
Yahoo! Groups Links
------------------------------------
Yahoo! Groups Links
-------------------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.421 / Virus Database: 270.14.7/2422 - Release Date: 10/08/09 06:39:00
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Re: HP680M chart recorder ink.
You can download the HP 680 manual from here <>.
I've got some red ink for Grass Valley polygraph recorders if you want to try some. I've no idea how it compares to your HP but I imagine it's similar. PM me your mail address and I'll post a bottle if it's OK to send by Australian Post.
Don Black.
HP wrote:
toggle quoted message
Show quoted text
"Brian Goldsmith" <brian.goldsmith@...> wrote:
Does anyone know ... for my functioning 680M chart recorder?
------------------------>
Hi Brian,
I have an HP 680, too.
Do you have a Manual for the Chart Recorder ?
I have nothing for this Equipment.
Regards
Peter
------------------------------------
Yahoo! Groups Links
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Re: HP680M chart recorder ink.
"Brian Goldsmith" <brian.goldsmith@...> wrote: Does anyone know ... for my functioning 680M chart recorder? ------------------------> Hi Brian, I have an HP 680, too. Do you have a Manual for the Chart Recorder ? I have nothing for this Equipment. Regards Peter
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HP680M chart recorder ink.
Greetings to all.
Does anyone know where I can purchase the correct ink for my still
functioning (but inkless) 680M chart recorder?
I am downunder but would buy from anywhere in the world.
Thanks for the read,Brian G.
|
Re: [hpagilentswap] HP-417A detector F.S. Make offer
I just looked this up. It's a very early detector for a network analyzer. Kinda historical even. -John ============= Greetings,
I re-wrote this listing because the address was incorrect.
I have the above equipment for sale plus shipping. It may or may not work but, it is all there. Cabinet needs cleaning up. The face is fine. As is. George Collier 7211 N.12th St. Tampa,florida 33604
Thank you,
George
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Yiu On Tony C
Jos Raven PA0AMX