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Re: HP 8566B repair
I have checked the A3A8 board as indicated in the service manual and the results seem ok. The first photo shows the result with the "A" band selected. The second photo with the high band (Instrument
By gsl@... · #151877 ·
5334A replacement capacitor
I need a replacement or substitute for A1C19 (0180-2991), Sprague 67D398H020JL5A.? Mine let go in spectacular fashion, magic smoke, magic goo, pungent atmosphere. Thanks -- Joe White KW4YW
By Joe White · #151876 ·
HP DC Power Supply modification
Hi to all, I am looking for a modification for the following PSU to ioncrease the voltage to 13.8V , any ideas? HP DPS-1400CB A PWS 1400W HSTNS-PD43 754383-001 DL360 G9 DL380 G9 LFF Thank you all Nick
By NICK K. PLUMIDAKIS · #151875 ·
Re: Question: Is there a correct* way to get an HP T141/855X Spectrum Analyzer to sweep logarithmically? (* as in: HP provided specific instructions/equipment for this)
Hi all, I have a Tek 5L4N plugin for the 5000-series scope frames which was designed to be a log audio spectrum analyzer.? it will sweep log from 20 Hz to 25 kHz, linear from 100 Hz to 100 kHz with a
By Howard Hoyt · #151874 ·
Re: Question: Is there a correct* way to get an HP T141/855X Spectrum Analyzer to sweep logarithmically? (* as in: HP provided specific instructions/equipment for this)
AFAIK the 141/855X system never had any log frequency sweep capability. It was a lot back then just to get linear and sometimes frequency-stabilized operation. More modern SA gear had more
By ed breya · #151873 ·
Re: HP3582a problem no chanel 2
I had a similar problem with my 3582A: both channels showed OVERLOAD and no response. The solution was incredibly simple, some buttons on the front panel were bad (I suspected it might be the buttons
By BI4LBK · #151872 ·
Looking for service manual/schematic for early E3611A DC Power Supply
Hi, I'm currently repairing an early HP branded model E3611A DC Power Supply to give to a friend, but the schematic from the usual online sources is for later models that differ in some parts (notably
By Jared Cabot · #151871 ·
Re: ftp.agilent.com tar-file on archive.org
On Thu, 15 May 2025, Wolfgang Schraml via groups.io wrote: I've just downloaded the entire thing. No problems encountered. > Thanks. I'll give that a try. > > Wolfgang > >
By Sergey Kubushyn · #151870 ·
Re: HP3582a problem no chanel 2
I also vaguely recall that there is a front panel screw driver overload adjust pot for each channel. Do check the OP/Serv manual for the front panel controls, setup, and calibration (adjustment). Don
By Don Bitters · #151869 ·
Re: HP3582a problem no chanel 2
I am no expert on the 3582A, but check the motherboard sockets, the brd connectors any cabling to the input cards, and the circuit that comes after the input card, and the input control circuitry. I
By Don Bitters · #151868 ·
Re: HP 8566B repair
IIRC II is probably found in the IF A3 section, the video processor or detector. Do you have a problem? What are your symptoms? If you are asking after the video digital sweep vs. the analog sweep,
By Don Bitters · #151867 ·
Re: ftp.agilent.com tar-file on archive.org
Thanks. I'll give that a try. Wolfgang ========================================
By Wolfgang Schraml · #151866 ·
Question: Is there a correct* way to get an HP T141/855X Spectrum Analyzer to sweep logarithmically? (* as in: HP provided specific instructions/equipment for this)
(Bear with me, I¡¯m still learning how to use this platform) I¡¯m primarily interested in obtaining logarithmic sweeps/bode plots while using my 8556A audio frequency plugin and 8570A Storage
By Petejalley@... · #151865 ·
Re: Twelve(+/-) bins of original HP/Agilent manuals free for pickup in San Diego
I'm resurrecting this thread as I've taken a chunk of these manuals at that time with the intention of figuring a way to scan them or make them available some other way. In the meantime, my storage
By Radu Bogdan Dicher · #151864 ·
Re: ftp.agilent.com tar-file on archive.org
I'm not sure, but the older versions are much smaller in size at maybe 100Mb. On the wayback machine, all the older 78xxA downloads show up as access forbidden. It is still possible to get the main
By jmr · #151863 ·
Re: ftp.agilent.com tar-file on archive.org
Hi Jeremy, I am also looking for the N78xx software but from what I know all versions need a license. Or this not valid for the older versions and only new ones need the license? Regards, Razvan
By Razvan Popescu · #151862 ·
Re: ftp.agilent.com tar-file on archive.org
Thanks for this. There's lots of useful stuff there. Does anyone have a link to an older archive of the Agilent website that might still have the N7810A calibration SW for the old E4440A spectrum
By jmr · #151861 ·
Re: ftp.agilent.com tar-file on archive.org
I download the whole archive a few years ago. I also had issues with the download at that time but it was easy to resume the download because I started it using "wget". If you don't have a Linux box
By Razvan Popescu · #151860 ·
ftp.agilent.com tar-file on archive.org
The Internet Archive has what appears to be a snapshot of ftp.agilent.com from 2014. Link is https://archive.org/download/ftp.agilent.com. The file is rather large (317GB) and an attempt to download
By Wolfgang Schraml · #151859 ·
Re: HP 432B display
Oh, you know what. I missed that the display is for a "B" model. Sorry, I don't have one. Dave - W6TE DXCONNECTION
By Dave Smith · #151858 ·