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Re: HP 8116A woes with E42 error
I did check the supplies. Sorry I forgot to mention that. If I remember correctly the +15 V supply was off, and it wasn't off by much. It was in the millivolts range if I recall. I was able to get
By Swiss · #126726 ·
Re: HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
I'll also give the warming up trick a try as well and I'll check the continuity as well. Thanks. David.
By David · #126725 ·
Re: HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
George, I will confirm if there is a connector on the other end and the exact length this coming weekend. Thank you. David.
By David · #126724 ·
Re: HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
Hi David Having looked at the photograph I would first try slightly warming the cable and then using my thumb and a finger try to roll the damage out of the coax. SMB connectors are not normally used
By george edmonds · #126723 ·
Re: HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
Hi David This is an SMB connector.? The cable is almost certainly 50 Ohms impedance as is the SMB connector. The red is just for identification, does it have connectors on both ends? What is the
By george edmonds · #126722 ·
Re: HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
Thank you for your replies so far. Please find attached a photo of the connectors and the damaged coax cable (Red). If I was to buy cable it is important to buy the correct type so that it's the
By David · #126721 ·
Re: HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
Hi David I suspect that you are asking for a cable using SMB connector/s. Sugest that you photograph it and post the photograph. I have some SMB made up cables G Edmonds
By george edmonds · #126720 ·
Re: HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
There is no such thing as a push on SMA , the connector you are referring to is more than likely a SMB connector which are common in HP equipment to connect IF and low frequency signal lines, crimp
By Lothar baier <Lothar@...> · #126719 ·
Re: HP 8116A woes with E42 error
Did you check the supplies? You mentioned checking a bunch of stuff, but not that. I've fixed a couple of these (I think), and the problem was simply a bad negative supply, if I recall correctly. In
By Tom Lee · #126718 ·
HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
I am reassembling my HP8563E SA and I have found a red coaxial cable (approx 2.7mm diameter) that connects to the A4 PCB that has compression damage to the insulation. It has a right angle push on
By David · #126717 ·
HP 8116A woes with E42 error
Hello everyone. Long time lurker / never poster. Waned to see if anyone may have some ideas on an issue that I am having with an 8116A? function generator. The output of the unit slowly started to
By Swiss · #126716 ·
Re: LackRack
Yes... yes it is! I'm not saying I have enough style to avoid this; but, I don't smoke as much of that stuff as some Google engineers might (whatever a Google engineer might be.) Fortunately,
By Roy Thistle · #126715 ·
Re: Limits of the Port Extension on the Cal screen for calibrating at end of cable
Dr. Kirkby: " You will need to slow the sweep speed down, below that automatically chosen for you. Otherwise the frequency of the oscillator will have shifted outside the passband of the receiver by
By nj902 · #126714 ·
LackRack
This might be an interesting idea for small rack mounts "The LackRack is the ultimate, low-cost, high shininess solution for your modular datacenter-in-the-living-room. Featuring the LACK (
By Bill Higdon · #126713 ·
Re: 53181A 3 GHz prescaler from China
I saw a clock multiplier module on eBay the item number is 362887003547 - P1: Input Port (Input 2~50MHz, Minimum Input Voltage 100mVp-p) SMA Interface. - P2: Output Port (Maximum 150MHz) SMA Interface
By Eric Haskell [KC4YOE] · #126712 ·
Re: HP8640B no rf out
This fellow rebuilds the 8649B range gear assembly. ?I sent mine in and got the rebuilt back soon. ?Can¡¯t recall cost. https://www.electronicsrevisited.com/#Home
By Henry Newton · #126711 ·
Re: HP8640B no rf out
If I'm not mistaken, these fingers are the same ones that are on those disks: https://www.ebay.com/itm/125225534497 Thanks, Barry - N4BUQ
By n4buq · #126710 ·
Re: Limits of the Port Extension on the Cal screen for calibrating at end of cable
wrote: A wavelength of roughly 20 m. I want to place the measurement plane at the end of a 100 foot length of Em, wish you would work in metric! Let's call that 30 m. So your cable is 1.5 wavelengths
By Dr. David Kirkby, Kirkby Microwave Ltd · #126709 ·
Re: HP8640B no rf out
If you are unable to find exact replacements, many have successfully improvised substitutes. I've used the contact fingers from cast-off solderless breadboards and Lothar's method of screwing them
By Tom Lee · #126708 ·
Re: Limits of the Port Extension on the Cal screen for calibrating at end of cable
That's true on the 8753, but the PNA-X, and probably some lesser instruments, allow loss to be added too. But no port extension is needed here. Dave
By Dr. David Kirkby, Kirkby Microwave Ltd · #126707 ·
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