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A friend has a 8753A with problems in the sweep or perhaps horiz. amp. circuit. Does anyone happen to have the schematics for this unit? Thanks!

Hello group, I'm chasing a 8750A to 8412B interconnect cable. I have found a good source for new ones, but was rather hoping for a cheaper secondhand one. Who has shed full of them? regards, Richard VK5ZLR

Hi All! I have recently acquired an HP 1740A dual-beam oscilloscope - but alas without a User Manual. I would appreciate help in acquiring a manual from this expert Yahoo group. Best Regards David

Hi There, I have just brought a HP5385a, unfortunately it did not come with any documentation. I would appreciate any help. The unit appears to work well thank you 73's Gary VK2KYP

Anyone using a 8558B Spectrum Analyzer in a 853A Digital Mainframe... used with a HP 8444A Tracking Generator. I would like to communicate with you...

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Looking to purchase a copy or original manual for the subject equipment. Arthur Shulman VE3ZV

Hi all, I hope you all enjoyed the Easter break. I am looking for a site to download a manual for the HP5245L frequency counter. Thank you Gary Beech VK2KYP

Dear All, I have a 54110D scope which exhibits power supply problems. I've followed the troubleshooting guide in the 54111D service manual which leads me to believe that the analog board is faulty. Has anyone got any schematics for these scopes, or a spare board kicking around they'd like to sell? Thanks in advance, Ed.

Hi Guys This is my first posting to this group. I am wondering if anybody knows about the "10032A" scope probe? Its a 100:1 probe has 3Mohm 3pF input loading and a max of 300V input. Its a really nice compact size, I am looking for the upper frequency limit. Mervyn ____________________________________________________________ Yahoo! Messenger - Communicate instantly..."Ping" your friends today! Download Messenger Now http://uk.messenger.yahoo.com/download/index.html

I am saddled with a perfect 8405A with one defective probe. Swapping the sampling board between probe tips shows that the fault follows the board. The measured voltages are correct for the good board, but not for the failing board. The diodes check out OK for F/B ratio, leaving not much else to change except the FET. Can anyone on the list suggest a suitable replacement part or troubleshooting strategy? Arthur Shulman VE3ZV

Hi All, Happy Easter, some time ago I brought a secondhand HP3406A wideband voltmeter. I would like to download the manuals for it. Can anyone please help with a website to do this Thank you Gary Beech VK2KYP

Hi all, I'm looking at getting an HP meter along the lines of the 3455, 3456 or 3457. Its to be used in a small lab. I don't require any remote capabilities. I'm after a meter to carry on from where the handhelds cease to be useful. Are there any particular models that are best avoided and any that are more highly prized than others? Cheers Ian Du Rieu

That completes the continuum for me, then!!!! Very cool. I have a Fluke 8050A, a benchtop 4.5 digit DMM with battery option. It's now 20 years old. I have never calibrated it. I take it to work once per year, and check it against an HP 3458A (8 1/2 digit calibration standard) and it's always right on, down to the last digit of the Fluke. On eBay, they're about $50. My question, though, is what are the "bargain of the century" DMMs that are HP-IB controllable? Or serial, or USB or....? The 34401A is too steep for me, given that I probably want several remotable DMMs. 73, Dave W8NF === In reply to === From: "John Miles" <jmiles@...> Subject: RE: 3455, 3456 & 3457 multimeters A friend in town (W7TOM) just bought an HP 3478A, and we were both very favorably impressed by it. I have a HP 34401A on my bench which I bought brand-new for $1K, and the 3478A is almost as good at 20% of the price. It has one less digit of resolution than the 34401A (5.5 instead of 6.5, either are more than sufficient for nearly any practical purpose and much more than any handheld can offer), and a couple fewer bells and whistles (dB, frequency...) that I don't use anyway. Calibration is simple, with no need to open the cabinet, and the manuals are excellent. Bob's 3478A showed an invalid calibration checksum on one DC voltage range, so we set it up against my 34401A and he was good to go. The other ranges were so close to the 34401A that no adjustment was warranted. Dealers sell the 3478A for around $300; the going eBay rate is $200 or less. These things are the T&M bargain of the century, IMHO. I wish I'd gone the 3478A route -- I could have gotten essentially the same meter for a lot less money. Didn't know they were that cheap, or that good. -- john KE5FX === End copied text === __________________________________ Do you Yahoo!? Yahoo! Photos: High-quality 4x6 digital prints for 25? http://photos.yahoo.com/ph/print_splash

Hello all, I have the following "vintage" manuals for sale: HP 522B counter $ 5.00 HP 5253B frequency converter (for 5245L counter) $ 10.00 HP 5440A digital DC voltmeter $ 10.00 HP 403B AC voltmeter (copy) $ 5.00 Prices are U$S plus S&H Thanks Joe Orgnero VE7LBI

In order to repair my instrument I looking to downloadable HP 8552A service manual any Help Apreciated Gabriele

Quite a few typos scattered throughout, but still a very interesting historical document on HP/Agilent gear through the ages. http://cp.literature.agilent.com/litweb/pdf/5980-2090E.pdf (36 pages, about 2 MB) -- john KE5FX

Hello All I was just given an old HP 3439A Digital Voltmeter to play with. It has the 3443 High Gain/Auto Range plugin. The Nixie tubes light but display random digits. I have searched for a schematic and found nothing. Really, like others have said here before, its the challenge to see if I can get it functioning, so any info about it is appreciated. Thanks BL

Hi, Has anyone got a manual that I can copy, scan or whatever for a HP 1740A? Or point me towards where I can download one? All costs re-imbursed. Regards Robin -- Robin Birch