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I should point out I have not attempted this as I had no reason to, why I am sharing this is that it appears to be an unusual exploit should you desire a more fine frequency control though not without

... Relying on super caps is not 100%.? I have found bad ones. ... It's better to be safe than always assume goodness. I never assume goodness, hence my statement to always do a backup. A backup

To put simply, take a function generator such as a HP 3325B, set the output to 0dBm at 10 Mhz, plug that into the reference input of the signal generator. Then if you want a frequency of 100 Mhz just

Hi, If you do not hear the relays clicking, first thing to check is the ribbon cable between the attenuator board and the A14 board. They are notoriously bad, to the level that on one of my 3325A I

Relying on super caps is not 100%.? I have found bad ones.? It's better to be safe than always assume goodness. Greg

Don, If I’m not mistaken, HP part number 2110-0301 crosses to a Littelfuse part number 0275.125 under their Picofuse product brand. This fuse was obsoleted in 2007 along with many others in this

What type of connector are you referring to? Apart from the fact that "RF phono" seems an oxymoron to me, I am not aware of HP widely using low-cost connectors. Are you talking about RCA/cinch

What does it mean by Keysight qualified part? Apparently the 34401-49321 part is listed this way and it won't let me purchase it. Thanxs

I used Chrome and it seems to work, now I have to wait for verification

The additional effort to attach an external power supply to keep the memory contents is really not needed. In the referenced Assembly Repair manual there's a section on how to replace the A16A1BT1

High all looking for a signal generator / multiplier above 110 Ghz any one have something on the shelf requiring a new home Regards Paul

I just tested the ZSETADDR and ZRDWR? commands given there, on my HP8595E. They seem to do something, but not what I'd have expected. Subsidiary problem: My 8595E display centering is a little off,

That does sound like a drifted master oscillator, or perhaps further down the chain, but so far I can't find a table of error messages for the 3336. However, on a more general note when working on

Hi Don, In my SM J2F1 is listed as 0.125A 125V .281X.093 (hp number 2110-0301) Br, Askild wrote:

Hi, In this thread on eevblog forum: https://www.eevblog.com/forum/testgear/hp856xe-hackers-corner/ It is listed undocumented gpib commands for the 856xE series, one can be used to read any memory

Hi Vladan, Not sure it's possible to calibrate the 8360 with the front panel (really don't know...), normally you do this with the software running on an HP98x6 or a R382 computer and HP power meter

Hello group. Can anyone advise me the rating, and where to get, replacement fuses for the 525MHz channel input protection on a 5350B? The manual that I have has this information missing. Thanking you

Hi Randy, Welcome to the group! I assume that your unit is a 3325A, but both the A and B models are quite similar. Place your scope probe (high impedance) on the A16/A26 AMP OUT pin. If you have

Did you try more than one browser?

New to the group, but have used HP gear for decades. I have a 3325 which appears to have an output attenuators issue. I can see the sync output on my Tek (555) scope, but do not see anything from the