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Re: HP8648A - attenuator glitches
Digging a little deeper into the Service Manual, the output attenuator assy (& Reverse Power Protection- RPP) are quite different between the 1GHz -A and the -B, -C & -D higher frequency models. For
By Kit · #150322 ·
Re: VNA Fixtures
I suspect what you have there are RF/IF transformer(s)?with tuned primary and untuned secondary. If there is a tap on the primary, the center pin of the three pin side, it is used to feed supply
By alan victor · #150321 ·
Re: Looking for 54300A operating and service manual
Thanks, but that is the operating and programming manual which, as I stated, does not have the information I seek. Peter
By Peter Gottlieb · #150320 ·
Re: Looking for 54300A operating and service manual
Sorry about that didn't read Peters entire post. ________________________________ Sent: Thursday, February 20, 2025 5:40 PM To: [email protected]
By scm325 · #150319 ·
Re: Looking for 54300A operating and service manual
https://xdevs.com/doc/HP_Agilent_Keysight/HP%2054300A%20Operating%20%26%20Programming.pdf ________________________________ Sent: Thursday, February 20, 2025 2:17 PM To:
By scm325 · #150318 ·
Looking for 54300A operating and service manual
Nothing on Keysight, no luck with a web search.? I have the operating and programming manual but it doesn't help. What I'm really after is the pinout for the plug in modules as I would like to use
By Peter Gottlieb · #150317 ·
Re: Test Set Program Development Tool DEV_PL on 3.5" floppy
USB floppy drives do not implement a full floppy controller. I’ve never seen one that can handle other than 512 byte sectors, and or sector counts other than those used on MS-DOS 720K and 1.44MB
By Ed Marciniak · #150316 ·
HP 3403C True RMS Voltmeter display fault
Hello, This is my first post here, thanks for allowing me in. I've had the chance to pick up an HP3403C True RMS voltmeter, serial 1452A03359, with options 0011 (Autoranging) and 006 (dB display). I
By AArnaud · #150315 ·
Re: VNA Fixtures
It runs fine under Fedora linux using WINE. -- T. Gerbic Central California
By tgerbic · #150314 ·
Re: Service manual scan post processing
I pretty much just follow this guide: https://hugin.sourceforge.io/tutorials/scans/en.shtml Which can be confusing at times (wording is not totally clear at some points). Especially after you create
By Michael Bierlein · #150313 ·
Re: VNA Reference Impedance Renormalization
Here’s a link to an interesting article that may help. I thought it was helpful to know the error bounds for different circuit configurations when using a 50 ohm network analyzer to measure low and
By Jim Ford · #150312 ·
Re: VNA Fixtures
Great, thanks for the clarification.
By Jinxie · #150311 ·
Re: 8596E Spectrum Analyzer Fault
Thank you, Mark. I would have thought if it was the power supply then the issue would arise spontaneously at any time and not just precisely when I try to enter a frequency limit. But I may be wrong.
By Jinxie · #150310 ·
Re: 8596E Spectrum Analyzer Fault
This doesn't sound like a dirty keyboard issue to me. ?Before digging into the keyboard for cleaning, I would get it in this state and then unplug the keyboard to see if the issue continues. I think
By Mark Litwack · #150309 ·
Re: HP 8670B amplifier - does it ring a bell with anyone?
Well, I’m not familiar with the 8670B amp, but I have run across the HP 8349B 2 to 20 GHz amps. According to a very knowledgeable friend, the 8349s were designed for driving mmWave multipliers.
By Jim Ford · #150308 ·
Re: VNA Fixtures
Yes, jumper across your test fixture, center to center, shield to shield.
By Dave Wright · #150307 ·
Re: WTB: Manual for Dymec 2411A Guarded Data Amplifier accessory for HP 2401C Voltmeter.
You might want to post your request on the Manual Exchange group. DaveD KC0WJN [email protected]> wrote:
By Dave Daniel · #150306 ·
Re: Service manual scan post processing
[email protected]> wrote: I've tried hugin for schematics, and was unsuccessful: many of the continuous lines were no longer continuous, and it connected some lines incorrectly. What settings did you
By Tom Gardner · #150305 ·
WTB: Manual for Dymec 2411A Guarded Data Amplifier accessory for HP 2401C Voltmeter.
Hello, Would anyone have a manual for the Operating & Service Manual for the Dymec *2411A Guarded Data Amplifier* that they could sell? Kind regards, Terry ZL1NOW ( https://www.qrz.com/db/ZL1NOW
By Terry Gains · #150304 ·
Re: Service manual scan post processing
I use software called Hugin. Bit of a learning curve, but works semi-reliably after you get it down. However, I would not want to do hundreds of stitches using Hugin, so if the Adobe solution is a 1
By Michael Bierlein · #150303 ·