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Date
Re: Help diagnosing 8593E possible YTO failure
That¡¯s correct this is a como failure on that analyzers. Try to perform adjustments tasks on synthesizers ( samplers ¡­ and so) if it don¡¯t fix the problem you will need a new oscillator . Ing.
By Patricio A. Greco · #120153 ·
Re: OT: Extender for flat (flex PCB) 4 wire ribbon cable
You could make your own fairly easily, I think. Start with an FFC cable the correct pitch and lead count like: Molex 0151670721 Digikey part number WM13128-ND and a connector like: JST
By BobH · #120152 ·
Help diagnosing 8593E possible YTO failure
Hi all, Hi all, I'm working on the old 8593E I picked up off eBay a few years back. It had the problem when I got it -- I figure the seller probably knew and didn't mention it, but *caveat emptor* and
By Nick Foster · #120151 ·
Re: 8341A *restoration adventure*
Having troubleinterpertating the results. Lets try a single test for the modulator (main ALC power regulating component) Picxk a frequency above 2 GHz and hook either the scope, detector or power
By Bruce · #120150 ·
Re: 8341A *restoration adventure*
Bonus check: I'm trying to do the external leveling using my crystal detector for the loop and 8481A for sensing the actual power. I tried 500 MHz, 1 GHz and 2 GHz (the max of my resistive power
By RubenRubio · #120149 ·
Re: 8341A *restoration adventure*
Hi Bruce! I checked the ripple of the eight regulated rails and everyone stays between 10 to 15 mV, I think that is ok. - On the scope-crystal setup: My scope is digital and x-y mode is crap. So I set
By RubenRubio · #120148 ·
Re: HP 5245L Electronic Counter Prefix 724-
Yes indeed thats the M model oven and they are very good. Its the same oven used in the Cesium 5061a/b. Though the internal EFC is a bit different. I have one in a 5248M. Better frontend from what I
By paulswed · #120147 ·
Re: HP 5245L Electronic Counter Prefix 724-
Not free, that is. Artek Manuals sells good scans for just over USD 10,-. Raymond
By Raymond Domp Frank · #120146 ·
Re: HP 5245L Electronic Counter Prefix 724-
Your insight was spot on! I wonder how can I have been so absent-minded! It is exactly HP 5245 *M! * No schematics available on the web
By Marco Marchesi · #120145 ·
Re: Keysight DVM 34465A Temperature/TC?
Bonjour seul, yes the 34465A has a built in Thermo Couple function for J, K, E, T, N, R types. It also got an internal reference junction, afaik. Please read the manual for details. Frank
By Dr. Frank · #120144 ·
Re: Buying a used VNA
Here both the vintage PNA and the low cost VNA are used to look at the same home made Beatty standard.
By Joe Smith · #120143 ·
Re: Buying a used VNA
The software supports using external mixers for both up and down conversion.? There no free ride of course.?? My interest in the lower frequency (20kHz and up) is for PDN measurements.? I would
By Joe Smith · #120142 ·
Re: HP 5245L Electronic Counter Prefix 724-
My 5245M manual applies to 716- and up... Raymond
By Raymond Domp Frank · #120141 ·
Re: HP 5245L Electronic Counter Prefix 724-
Maybe irrelevant - but wouldn't that OCXO belong in a 5245M, not a 5245L? Raymond
By Raymond Domp Frank · #120140 ·
OT: Extender for flat (flex PCB) 4 wire ribbon cable
I've got a replacement touch screen that has a four wire (1mm pitch) flat flex PCB ribbon cable that is too short (3" or 70cm long) that I need to extend to about 10" (say 25cm). I think what I need
By David C. Partridge · #120139 ·
Keysight DVM 34465A Temperature/TC?
Bonjour a tous: We use thermocouples to check power dissipation in SMPS, and to calibrate SMD solder pots with RoHS solder like SAC100. We have many type K TC from Fluke, Kiethley and hommade spot
By Froggie the Gremlin · #120138 ·
Re: Buying a used VNA
[email protected]> wrote: There is a circuit, which I think was published in QEX, that drops the frequency of a VNA by mixing the input with the 10 MHz reference output. So 0-300 kHz would be seen
By Dr. David Kirkby, Kirkby Microwave Ltd · #120137 ·
HP 5245L Electronic Counter Prefix 724-
Hi All, I`m restoring this unit. At the moment I`m troubleshooting the A24-A25-A26 Oscillator ensemble where no signal is coming out. But there is a catch. I can`t find any documentation about this
By Marco Marchesi · #120136 ·
Re: 8341A *restoration adventure*
OK soyou can do the tests with the detector and a scope. Drive the scope X with the SWEEP OUT from front panel and the Y from the detector. PRESET,START=2G, STOP=20G, METER - sweep should be
By Bruce · #120135 ·
Re: Buying a used VNA
I know Keysight is pretty proud of their TDR option for the PNA.? Shown below you can see how this vintage tech compares with a low cost $200 VNA out of China measuring a home made 70mm Beatty
By Joe Smith · #120134 ·