Re: 3457a on the way
So does anyone have any idea what the differences are between the 2703A prefix and the 3114A prefix. I know the "A" is US made from what I understand. I'm not finding anything in the docs, or just not
By
Jeff Machesky
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#48611
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Re: 3457a on the way
I don't know. It seems odd that they would have a minimum of $50 for the
cheapest way to order (web based, no 'live humans') but no minimum for the
more expensive way to order ('live humans').
I
By
J. L. Trantham
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#48610
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Re: Directional bridge in HP 85046A
If the bridge design is basically the same as others, there is coax on one side, and the other side is only wound for symmetry purposes, so it doesn't matter if there is the same coax or solid wire of
By
adrian_microwave
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#48609
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Re: DIY: Repair of HP 8568B Step Attenuators - mystery solved and yet another question...
Jim,
You can order it from Agilent (formerly known as Hewlett Packard).
5180-2720 is the 40 dB pad and costs $57.29
Adrian
By
adrian_microwave
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#48608
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Re: 3457a on the way
By
Jay Walling
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#48606
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Re: Oscilloscopes - analog but with digital capability?
In article <p7o1e8tfknjh74fth8cdeic53dem20kga8@...>,
Harvey White <madyn@...> wrote:
Yes, I have one of those, it works well.
--
Stuart Winsor
Only plain text for
By
lists <Stuartlists@...>
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#48607
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Re: Best DVM for general purpose work - 3478A or 34401A ?
Well a quick google showed that the 34401A is a 6.5 digit, and the 3478A is a 5.5 digit, so the reference on the 34401A will be quieter, and should age slower, also being the older instrument its
By
m1k3k1
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#48605
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Best DVM for general purpose work - 3478A or 34401A ?
Hi,
I have a few too many DVM's in the workshop and am thinking about disposing of at least one of them.
Specifically I have a 34401A and 3478A. They appear to have similar features and measure the
By
kt6uk
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#48604
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Re: Pozi-Drive bits
I was lucky and got a set of Pozi bits in the local Sears (#26493). Looks
like they are out of them now - they are quoting 13 to 15 days for store
pickup.
Orin.
By
Orin Eman
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#48603
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Re: USB to GPIB Adapter
Or roll your own...
http://www.dalton.ax/gpib/
:)
Happy New year, everyone!
--
Anders Gustafsson
Engineer, CNE6, ASE
Pedago, The Aaland Islands (N60 E20)
www.pedago.fi
phone +358 18 12060
mobile
By
Anders
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#48602
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Re: DIY: Repair of HP 8568B Step Attenuators - mystery solved and yet another question...
John-
If the picture is to be believed, then it appears that 5180-2720 is exactly the right design but about 10% too small.
5180-2720: 3/8 by 5/16
My part: 7/16 by 3/8
I am wondering if HP's
By
james.schatzman
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#48601
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Re: Oscilloscopes - analog but with digital capability?
<jfor@...> wrote:
That is sure the case.
The only problem with the 7B53A or other 100 MHz 7B5x timebases is
that the 7854 vertical delay line at 65ns is too short to show the
leading edge.
By
David Hess
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#48600
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Re: DIY: Repair of HP 8568B Step Attenuators - mystery solved and yet another question...
Jim,
I think the same basic attenuator hybrids are used in the 8594(A-E) and similar frequency range spectrum analyzers. (Some higher bandwidth analyzers (22GHz) use a pair of 20dB pads to get
By
John Gord
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#48599
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Re: Pozi-Drive bits
By
Richard Knoppow
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#48598
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Pozi-Drive bits
I know this has come up many times in the past so when I stumbled upon PoziDrive driver bits today in the HomeDepot I thought I would pass on the tip (Pardon the pun please).
There are two driver
By
bownes
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#48597
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Re: DIY: Repair of HP 8568B Step Attenuators - mystery solved and yet another question...
Vladan and the group -
Wow! That is one fancy piece of miniature mechanical manufacturing. Like a Swiss watch. Beautiful. Crazy. Amazing.
Unfortunately, the 40 dB attenuator is indeed open at one
By
james.schatzman
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#48596
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Schematic for HP8648B
Hi,
I am looking for a schematic, or service manual with schematic, for the
HP8648B.
My set is faulty with these error codes :
Opt 1E6. 100khz-2000Mhz. .
Faults are :
516 Config 2 restore
By
cslim388
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#48595
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Re: Oscilloscopes - analog but with digital capability?
<jfor@...> wrote:
The specifications say 70 MHz bandwidth and simultaneous sampling of
40 MS/sec on each channel. I have heard that the bandwidth could be
significantly higher on some
By
David Hess
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#48594
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Re: DIY: Repair of HP 8568B Step Attenuators - another question...
Hi Jim,
Do not unscrew the solenoids on the top, at least not for now. To see what's happening, you will have to open the lower part where the RF action is.
The two SMA connectors have hex-nuts.
By
pianovt
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#48593
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Re: Oscilloscopes - analog but with digital capability?
No. The DPO uses an LSI-11 as a 'puter. I have one.
The 7D20 is much later. The DPO separated thye PI and display sections of
the scope with a digitizer unit, maybe the d7001.
Are you sure about the
By
J. Forster <jfor@...>
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#48592
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