The function(s) listed below. Some instruments have multiple functions - for example, the 4195A is a VNA, spectrum analyzer and an impedance analyzer. Therefore the 4195A is listed in multiple categories
I am trying to find the screw/nuts which are used to mount the HP-IB connector on the back panel of instruments, and which also secure the cable to the connector (a photo is attached). I can't find a source, looks like a typical "unobtainium" part.
Would anyone have a couple of spares, maybe from an old? "parts-only" instrument ? If so, please send me a PM.
Mark, it's even worse stuff than that if you look into it. At one time they used to use it to frost glass with as no other acid (I can think of) attacks glass. When hydroflouric acid eats through your flesh and enters the bone, it can tunnel along inside it and cause extensive, permanent damage. There's no doubt some stuff on Youtube of people handling it - hopefully with great care.
I'd love to see other benches! On another forum I've seen some "benches" that were to die for personal warehouses of wonderfully organized storage and spacious workbenches.
Some of the minimalist benches were exceedingly clever uses of small spaces and very inspirational too.
If you could locate Air Force Technical Order 33A1-10-76-1 or 33A1-10-76-32 you might find a schematic for the counter that includes this modification.
I just managed to find the worn bearing fans that I pulled out of my 5245 counters. They are the Spartan type SL fan which is a fan designed for reliable military applications. The series number is 867YS and it is a split phase capacitor run fan which has 3 leads, one for the capacitor for the split phase winding and two for the normal AC connection.
Data sheet:
The fan speed is rated at 2250 rpm for 50/60 Hz operation and 1550 for 400 Hz operation.
Since it was a factory modification for this particular product to meet military specs the fan and capacitor is a factory installed item. If it is working and the capacitor looks OK I would leave it alone. Otherwise spend the time and possible $$$ to replace a working fan for 120 volt operation only. The power supply eletrolytic capacitors will fail far before any oil filled capacitor.
Uh, why would normal solvents dissolve glass?? I think you would need hydrofluoric acid to do that.? Very, very nasty stuff I've been told.? ? Jim Ford, Laguna Hills, California, USA?
On Tue, Sep 17, 2024 at 2:24 PM, Jinxie via groups.io
<paul666@...> wrote:
Thanks, Robert. If it was indeed a glass deposit it's not surprising solvents wouldn't touch it. In fact I'm surprised the 1500 grit paper did!
Subject: [HP-Agilent-Keysight-equipment] KO4BB manuals site error
>??Here in the UK I get it ok
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> Brian(UK)
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> On Tuesday, 17 September 2024 at 17:55:36 BST, Sergey Kubushyn <ksi@...> wrote:
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> On Tue, 17 Sep 2024, Steve - Home wrote:
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> Same here.
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>>??I just got the following error when going to Didier¡¯s manuals directory:
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>> Error: Target directory does not exist.
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>> Anyone else tried it recently?
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Now goes through calibration no problem. I had an early scare when I saw no trace on the screen but then remembered I hadn't cabled up the 100Mhz out to RF in!
Anyway, all fully working now - until the next fault down the line (hopefully a long way down!) which is just what you have to accept with vintage equipment. :-/
Uh, why would normal solvents dissolve glass?? I think you would need hydrofluoric acid to do that.? Very, very nasty stuff I've been told.? ? Jim Ford, Laguna Hills, California, USA?
On Tue, Sep 17, 2024 at 2:24 PM, Jinxie via groups.io
<paul666@...> wrote:
Thanks, Robert. If it was indeed a glass deposit it's not surprising solvents wouldn't touch it. In fact I'm surprised the 1500 grit paper did!
This has already been mentioned, one tag has no connection, just the remains of the wire (cut off?). The other tag has two red wires connected together.
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"This is quite important as one of the two terminals has nothing connected to it."
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"There are two solid red wires from one capacitor terminal; one goes to S4 on the back panel (120/240 VAC selector switch) and the other goes to the fan."
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Unless someone has pictures of a H96 showing the original connections or a H96 service note, we will never know for sure what was correct, but I suspect the two red wires once went to each side of the capacitor and were not joined together.
Uh, why would normal solvents dissolve glass?? I think you would need hydrofluoric acid to do that.? Very, very nasty stuff I've been told.? ? Jim Ford, Laguna Hills, California, USA?
On Tue, Sep 17, 2024 at 1:36 PM, Jim via groups.io
<teotwaki@...> wrote:
I was just approved to join in the fun here. For background info:
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?- overall years using HP RF test equipment: approximately 49?
?- currently own 23 items of mostly RF related HP test equipment including Spec Ans, RF sig gens, VNA etc.
?- ?23 years for Microwave Links, Cellular Network Engineering and Cellular Core Network Performance ?-? 13 years at NASA/JPL in Communications Systems Research
?- 4 year EEE degree
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Currently maintaining a government radio repeater system
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?Jim
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Picture is of the home lab before I added the HP8924Cand HP3478A into the stack. The bench surface is rarely this uncluttered!
Jinxie
Glydeck
Frank Mashockie
factory
vk2bea