HP E3614A Power supply Annoying
OK I have an HP E3614A 8V 6A? power supply for testing some portable radios. I use the remote sense because the application requires it. This requires using the plug in terminal strip on the rear which has some funky mechanical funkiness. Bottom line it is a PITA to insert wires in those terminal strips and expect them to be retained by whatever mechanical clap trap HP engineered into it. My theory is this is a Carley Fiorini legacy design and the engineers were sobbing or drinking medicinally as they wrapped up the mechanical design. It otherwise works fine but I dare not move the cables.
Has anyone a solution, a mating connector pin etc?.
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Re: Any ECAP historians out there?
Hi Brad,
I don't have any need for the book but did use the ECAP program on an IBM 1127 system back in the late 60's. The element nodes were entered on punch cards and a printout of results came pretty quickly. It was very good for filter design.
The original program ran from a removable disk pack.
Regards,
Tom
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----- Original Message ----- From: "Brad Thompson" <brad.thompson@...> To: < [email protected]>; "Glowbugs" <tetrode@...> Sent: Thursday, November 15, 2018 5:44 PM Subject: [HP-Agilent-Keysight-equipment] Any ECAP historians out there? Hello--
As one of the first programs of its kind, IBM's ECAP (Electronic-Circuit Analysis Program) included many of the features found in modern analysis programs
(e.g., TINA) and a user-interface that's painful by today's standards (punched cards, anyone?). If you're curious about ECAPs innards and applications, I have a book for you.
I have one copy of "IBM Electronic Circuit Analysis Program: Techniques and
Applications" by Randall Jensen and Mark Lieberman; published by Prentice-Hall,
Englewood Cliffs, NJ, 1968 first edition hardcover, 402 pp.. EX-LIBRARY copy
in good condition (card pocket, spine label, library markings). Library of
Congress catalog 68-18515.
I'm asking $5.00 which includes USPS media-mail postage and a cuppa coffee
for yours truly.
Questions welcomed, PayPal honored.
73--
Brad AA1IP
|
Any ECAP historians out there?
Hello--
As one of the first programs of its kind, IBM's ECAP (Electronic-Circuit Analysis Program) included many of the features found in modern analysis programs
(e.g., TINA) and a user-interface that's painful by today's standards (punched cards, anyone?). If you're curious about ECAPs innards and applications, I have a book for you.
I have one copy of "IBM Electronic Circuit Analysis Program: Techniques and
Applications" by Randall Jensen and Mark Lieberman; published by Prentice-Hall,
Englewood Cliffs, NJ, 1968 first edition hardcover, 402 pp.. EX-LIBRARY copy
in good condition (card pocket, spine label, library markings). Library of
Congress catalog 68-18515.
I'm asking $5.00 which includes USPS media-mail postage and a cuppa coffee
for yours truly.
Questions welcomed, PayPal honored.
73--
Brad AA1IP
|
I bought my 8922M for $197, with options 001 and 006. That's the OCXO and SA options. It looks like the CRTs from 5" monochrome security monitors will fit these units, if needed. I have a tri-pack of Panasonic CCTV monitors to compare the CRTs.
Michael A. Terrell
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-----Original Message----- From: "Robert G8RPI via Groups.Io" Sent: Nov 15, 2018 4:05 PM To: [email protected]Subject: Re: [HP-Agilent-Keysight-equipment] HP 8922 Which 8922? There are several suffix letter variants. Some commonality with the 8920 and 8924 but not much. As a dedicated digital cellphone test set it has poor mass and volume to functionality. Some models have a spectrum analyzer (for some it's option 006) which is useful but has a maximum span of 10MHz Other than that it's a CW signal generator going to 1GHz. I hope it was cheap, they cost around $40,000 new but I would not pay more than a couple of hundred for one. They do have some useful bits depending on model. I don't like breaking modern equipment but hve to admit breaking a couple. They provided a spectrum analyzer upgrade for a 8920A, new monitor for a 8920B and parts for a RF input module repair on another 8920B plus some switched attenuators connectors etc. The similar looking 8924C is much more useful as it's basically a 8920B with spectrum analyzer option and a CDMA adapter in a big box. The difference is it retains all the analog functions of the 8920B. Robert G8RPI.
|
Which 8922? There are several suffix letter variants. Some commonality with the 8920 and 8924 but not much.
As a dedicated digital cellphone test set it has poor mass and volume to functionality. Some models have a spectrum analyser (for some it's option 006) which is useful but has a maxium span of 10MHz? Other than that it's a CW signal generator going to 1GHz.
I hope it was cheap, they cost around $40,000 new but I would not pay more than a couple of hundred for one. They do have some useful bits depending on model. I don't like breaking modern equipment but hve to admit breaking a couple. They provided a spectrum analyser upgrade for a 8920A, new monitor for a 8920B and parts for a RF input module repair on another 8920B plus some switched attenuators connectors etc.
The smilar looking 8924C is much more useful as it's basically a 8920B with spectrum analyser option and a CDMA adaptor in a big box. The difference is it retains all the analog functions of the 8920B.
Robert G8RPI.
|
lease change my order from 5 to 10 of thse. I can pay via PayPal.
Let me know how to proceed please.
Cheers!
Bruce
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On Wed, November 14, 2018 13:52, Gedas wrote: Hi Bruce, I am sorry but I do not. A friend did sweep one to 20 GHz (his
limit) and said they were fine but other then knowing they were built in a
rack by Agilent that is all I know. The 3.5mm connectors are a good sign
but no promises. They are going exponentially BTW, almost out.
Gedas, W8BYA
Gallery at
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 11/14/2018 3:35 PM, Bruce wrote:
Interested in the 3.5 cables (either 5 04 10) do you knnow the freq
specifications of the cable assembly? I work 18 -20GHz
On Wed, November 14, 2018 12:48, Gedas wrote:
A list of items that may be of use to you with greatly reduced
prices.
1. Quan (300), 12" long, RG-214 (Double-Shielded Silver), Male-N
(straight) to Male-N (90-degree) with Huber-Suhner connectors ! *_5
for $25 & FREE SHIPPING in USA._*
2. Quan (180). Pulled from Agilent made test rack, Teflon 26" long
with 3.5 mm 26 GHz connectors ! (SMA compatible). *_$25/5 shipped or
$35/10
shipped. _**_FREE SHIPPING in USA._*
3. Quan (90). Pulled from Agilent made test rack, RG-316, tan Teflon
~72" long with SMA connectors. Usable well past 10 GHz. *_$25/5
shipped or $35/10 shipped. FREE SHIPPING in USA._*
4. Quan (40) Flexible, solid, semi-rigid, Male-N to Male-SMA jumpers
(asst lengths, ~12" to ~20"), These use Huber-Suhner connectors (the
best).? This semi-rigid coax can also be soldered to using normal
solder which means the coax and/or connectors can be cut to length &
re-used ! *_$25/5 shipped. FREE SHIPPING in USA._*
5. Quan (20) Brand New, Mini-Circuits, 12 dB N-Female to N-Male
connectors, DC-6 GHz. Swept these and these are SPOT on ! Really
excellent attenuators. *_$6/each plus shipping._*
6. Asst. Quan Brand New, Mini-Circuits SMA-M to SMA-F, DC-1.5 GHz.
Swept
these, SPOT on ! Really excellent attenuators. (27) 1 dB, (23) 2dB,
(2) 4
dB, (4) 5 dB, (14) 6 dB, (18) 10 dB, (6) 20 dB.....*_$28/5 shipped.
_**_FREE SHIPPING in USA._*
7. Quan (40) Anritsu Dual-Coil, 13 GHz SMA relays. 3-pin Molex, one
side of center will energize one coil, the other side will energize
the other coil. In the un-energized condition the two "output" ports
are tied together and grounded. As soon as one side is energized a
connection is made between the common SMA port and one output SMA
port. One or two ports can be connected to the input (common) SMA
port. Either AC or DC can be used & the coil draws about 30 mA at 12
VDC. Will pull-in as low as around
6-7 VDC and not get as warm (12 VDC & small series resistor
works great). *_$6.50/each plus shipping._*
8. Assorted Watkins-Johnson-Narda-Miteq LNA's-Preamplifiers. All
untested, some not the prettiest, WJ-5090-2 (2-4.5 GHz), WJ-6007-80
(1-4
GHz), WJ-5090-5 (2-4.5 GHz), Narda 60031 (8-12 GHz), Miteq
AM-1A-000110-1265 (1 MHz - 100 MHz), *_$20/each plus shipping._*
9. (10) NOS, Andrews L7PNM Male N-connectors in OEM container, *_$20
each plus shipping._*
PayPal or check aok as always. All I ask is if you tell me you want
something _PSE_ be prepared to pay ASAP for your item(s). Nothing
worse then when I hold things for people & they never pay.
Gedas, W8BYA
Gallery at
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
|
If that's a thing, I want on that list as well.
Thanks
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Show quoted text
On 2018-11-15 8:30 PM, Bruce wrote: I understand that your original intent was to send this to a private list.
I AM interested in RF equipment - please put me on the list
On Wed, November 14, 2018 13:52, Gedas wrote:
Hi Bruce, I am sorry but I do not. A friend did sweep one to 20 GHz (his
limit) and said they were fine but other then knowing they were built in a
rack by Agilent that is all I know. The 3.5mm connectors are a good sign
but no promises. They are going exponentially BTW, almost out.
Gedas, W8BYA
Gallery at
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 11/14/2018 3:35 PM, Bruce wrote:
Interested in the 3.5 cables (either 5 04 10) do you knnow the freq
specifications of the cable assembly? I work 18 -20GHz
On Wed, November 14, 2018 12:48, Gedas wrote:
A list of items that may be of use to you with greatly reduced
prices.
1. Quan (300), 12" long, RG-214 (Double-Shielded Silver), Male-N
(straight) to Male-N (90-degree) with Huber-Suhner connectors ! *_5
for $25 & FREE SHIPPING in USA._*
2. Quan (180). Pulled from Agilent made test rack, Teflon 26" long
with 3.5 mm 26 GHz connectors ! (SMA compatible). *_$25/5 shipped or
$35/10
shipped. _**_FREE SHIPPING in USA._*
3. Quan (90). Pulled from Agilent made test rack, RG-316, tan Teflon
~72" long with SMA connectors. Usable well past 10 GHz. *_$25/5
shipped or $35/10 shipped. FREE SHIPPING in USA._*
4. Quan (40) Flexible, solid, semi-rigid, Male-N to Male-SMA jumpers
(asst lengths, ~12" to ~20"), These use Huber-Suhner connectors (the
best).? This semi-rigid coax can also be soldered to using normal
solder which means the coax and/or connectors can be cut to length &
re-used ! *_$25/5 shipped. FREE SHIPPING in USA._*
5. Quan (20) Brand New, Mini-Circuits, 12 dB N-Female to N-Male
connectors, DC-6 GHz. Swept these and these are SPOT on ! Really
excellent attenuators. *_$6/each plus shipping._*
6. Asst. Quan Brand New, Mini-Circuits SMA-M to SMA-F, DC-1.5 GHz.
Swept
these, SPOT on ! Really excellent attenuators. (27) 1 dB, (23) 2dB,
(2) 4
dB, (4) 5 dB, (14) 6 dB, (18) 10 dB, (6) 20 dB.....*_$28/5 shipped.
_**_FREE SHIPPING in USA._*
7. Quan (40) Anritsu Dual-Coil, 13 GHz SMA relays. 3-pin Molex, one
side of center will energize one coil, the other side will energize
the other coil. In the un-energized condition the two "output" ports
are tied together and grounded. As soon as one side is energized a
connection is made between the common SMA port and one output SMA
port. One or two ports can be connected to the input (common) SMA
port. Either AC or DC can be used & the coil draws about 30 mA at 12
VDC. Will pull-in as low as around
6-7 VDC and not get as warm (12 VDC & small series resistor
works great). *_$6.50/each plus shipping._*
8. Assorted Watkins-Johnson-Narda-Miteq LNA's-Preamplifiers. All
untested, some not the prettiest, WJ-5090-2 (2-4.5 GHz), WJ-6007-80
(1-4
GHz), WJ-5090-5 (2-4.5 GHz), Narda 60031 (8-12 GHz), Miteq
AM-1A-000110-1265 (1 MHz - 100 MHz), *_$20/each plus shipping._*
9. (10) NOS, Andrews L7PNM Male N-connectors in OEM container, *_$20
each plus shipping._*
PayPal or check aok as always. All I ask is if you tell me you want
something _PSE_ be prepared to pay ASAP for your item(s). Nothing
worse then when I hold things for people & they never pay.
Gedas, W8BYA
Gallery at
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
|
I understand that your original intent was to send this to a private list.
I AM interested in RF equipment - please put me on the list
toggle quoted message
Show quoted text
On Wed, November 14, 2018 13:52, Gedas wrote: Hi Bruce, I am sorry but I do not. A friend did sweep one to 20 GHz (his
limit) and said they were fine but other then knowing they were built in a
rack by Agilent that is all I know. The 3.5mm connectors are a good sign
but no promises. They are going exponentially BTW, almost out.
Gedas, W8BYA
Gallery at
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 11/14/2018 3:35 PM, Bruce wrote:
Interested in the 3.5 cables (either 5 04 10) do you knnow the freq
specifications of the cable assembly? I work 18 -20GHz
On Wed, November 14, 2018 12:48, Gedas wrote:
A list of items that may be of use to you with greatly reduced
prices.
1. Quan (300), 12" long, RG-214 (Double-Shielded Silver), Male-N
(straight) to Male-N (90-degree) with Huber-Suhner connectors ! *_5
for $25 & FREE SHIPPING in USA._*
2. Quan (180). Pulled from Agilent made test rack, Teflon 26" long
with 3.5 mm 26 GHz connectors ! (SMA compatible). *_$25/5 shipped or
$35/10
shipped. _**_FREE SHIPPING in USA._*
3. Quan (90). Pulled from Agilent made test rack, RG-316, tan Teflon
~72" long with SMA connectors. Usable well past 10 GHz. *_$25/5
shipped or $35/10 shipped. FREE SHIPPING in USA._*
4. Quan (40) Flexible, solid, semi-rigid, Male-N to Male-SMA jumpers
(asst lengths, ~12" to ~20"), These use Huber-Suhner connectors (the
best).? This semi-rigid coax can also be soldered to using normal
solder which means the coax and/or connectors can be cut to length &
re-used ! *_$25/5 shipped. FREE SHIPPING in USA._*
5. Quan (20) Brand New, Mini-Circuits, 12 dB N-Female to N-Male
connectors, DC-6 GHz. Swept these and these are SPOT on ! Really
excellent attenuators. *_$6/each plus shipping._*
6. Asst. Quan Brand New, Mini-Circuits SMA-M to SMA-F, DC-1.5 GHz.
Swept
these, SPOT on ! Really excellent attenuators. (27) 1 dB, (23) 2dB,
(2) 4
dB, (4) 5 dB, (14) 6 dB, (18) 10 dB, (6) 20 dB.....*_$28/5 shipped.
_**_FREE SHIPPING in USA._*
7. Quan (40) Anritsu Dual-Coil, 13 GHz SMA relays. 3-pin Molex, one
side of center will energize one coil, the other side will energize
the other coil. In the un-energized condition the two "output" ports
are tied together and grounded. As soon as one side is energized a
connection is made between the common SMA port and one output SMA
port. One or two ports can be connected to the input (common) SMA
port. Either AC or DC can be used & the coil draws about 30 mA at 12
VDC. Will pull-in as low as around
6-7 VDC and not get as warm (12 VDC & small series resistor
works great). *_$6.50/each plus shipping._*
8. Assorted Watkins-Johnson-Narda-Miteq LNA's-Preamplifiers. All
untested, some not the prettiest, WJ-5090-2 (2-4.5 GHz), WJ-6007-80
(1-4
GHz), WJ-5090-5 (2-4.5 GHz), Narda 60031 (8-12 GHz), Miteq
AM-1A-000110-1265 (1 MHz - 100 MHz), *_$20/each plus shipping._*
9. (10) NOS, Andrews L7PNM Male N-connectors in OEM container, *_$20
each plus shipping._*
PayPal or check aok as always. All I ask is if you tell me you want
something _PSE_ be prepared to pay ASAP for your item(s). Nothing
worse then when I hold things for people & they never pay.
Gedas, W8BYA
Gallery at
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
|
OK - Want 10 - please hold them for me as I was in line early.
How to proceed?
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Show quoted text
On Wed, November 14, 2018 13:52, Gedas wrote: Hi Bruce, I am sorry but I do not. A friend did sweep one to 20 GHz (his
limit) and said they were fine but other then knowing they were built in a
rack by Agilent that is all I know. The 3.5mm connectors are a good sign
but no promises. They are going exponentially BTW, almost out.
Gedas, W8BYA
Gallery at
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 11/14/2018 3:35 PM, Bruce wrote:
Interested in the 3.5 cables (either 5 04 10) do you knnow the freq
specifications of the cable assembly? I work 18 -20GHz
On Wed, November 14, 2018 12:48, Gedas wrote:
A list of items that may be of use to you with greatly reduced
prices.
1. Quan (300), 12" long, RG-214 (Double-Shielded Silver), Male-N
(straight) to Male-N (90-degree) with Huber-Suhner connectors ! *_5
for $25 & FREE SHIPPING in USA._*
2. Quan (180). Pulled from Agilent made test rack, Teflon 26" long
with 3.5 mm 26 GHz connectors ! (SMA compatible). *_$25/5 shipped or
$35/10
shipped. _**_FREE SHIPPING in USA._*
3. Quan (90). Pulled from Agilent made test rack, RG-316, tan Teflon
~72" long with SMA connectors. Usable well past 10 GHz. *_$25/5
shipped or $35/10 shipped. FREE SHIPPING in USA._*
4. Quan (40) Flexible, solid, semi-rigid, Male-N to Male-SMA jumpers
(asst lengths, ~12" to ~20"), These use Huber-Suhner connectors (the
best).? This semi-rigid coax can also be soldered to using normal
solder which means the coax and/or connectors can be cut to length &
re-used ! *_$25/5 shipped. FREE SHIPPING in USA._*
5. Quan (20) Brand New, Mini-Circuits, 12 dB N-Female to N-Male
connectors, DC-6 GHz. Swept these and these are SPOT on ! Really
excellent attenuators. *_$6/each plus shipping._*
6. Asst. Quan Brand New, Mini-Circuits SMA-M to SMA-F, DC-1.5 GHz.
Swept
these, SPOT on ! Really excellent attenuators. (27) 1 dB, (23) 2dB,
(2) 4
dB, (4) 5 dB, (14) 6 dB, (18) 10 dB, (6) 20 dB.....*_$28/5 shipped.
_**_FREE SHIPPING in USA._*
7. Quan (40) Anritsu Dual-Coil, 13 GHz SMA relays. 3-pin Molex, one
side of center will energize one coil, the other side will energize
the other coil. In the un-energized condition the two "output" ports
are tied together and grounded. As soon as one side is energized a
connection is made between the common SMA port and one output SMA
port. One or two ports can be connected to the input (common) SMA
port. Either AC or DC can be used & the coil draws about 30 mA at 12
VDC. Will pull-in as low as around
6-7 VDC and not get as warm (12 VDC & small series resistor
works great). *_$6.50/each plus shipping._*
8. Assorted Watkins-Johnson-Narda-Miteq LNA's-Preamplifiers. All
untested, some not the prettiest, WJ-5090-2 (2-4.5 GHz), WJ-6007-80
(1-4
GHz), WJ-5090-5 (2-4.5 GHz), Narda 60031 (8-12 GHz), Miteq
AM-1A-000110-1265 (1 MHz - 100 MHz), *_$20/each plus shipping._*
9. (10) NOS, Andrews L7PNM Male N-connectors in OEM container, *_$20
each plus shipping._*
PayPal or check aok as always. All I ask is if you tell me you want
something _PSE_ be prepared to pay ASAP for your item(s). Nothing
worse then when I hold things for people & they never pay.
Gedas, W8BYA
Gallery at
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
|
Re: What were your easiest and your most difficult equipment repairs?
My easiest (and the most inexpensive item I've acquired) was an HP6205C dual power supply for 15 bucks.? Seller listed it as 'one channel doesn't work'.? Interestingly (for an Ebay seller) he seems to have done some investigation before giving up - he said he'd determined that the defective channel was good up to the main regulator but nothing beyond that.? Said the power transformer was undamaged.? For 15 bucks it seemed like a good investment.
Which it was.? The defective channel didn't have the correct strapping for local sense - it was set up for remote sense but with no remote sensing actually happening it wouldn't work.
Nice little supply!
Rob
|
Re: Synthesizer module in ESG series E4435B
Oh ok well he is lucky! I only see once the clip manual selling on eBay and I miss it. And of course I'm looking for that I guess we should ask to keysight ?
Il giorno gio 15 nov 2018, 12:03 Milan Vasic < vasa1958@...> ha scritto: My friend have in his company but internal security and copyright policy is very strict. No chance to make a copy of all schematics.?
So just out of curiosity where didi you find the schematics?? I thought there no schematics avaible anywhere for this device?
Il giorno mer 14 nov 2018 alle ore 23:41 Milan Vasic < vasa1958@...> ha scritto: Someone ask for ESG Fractional N divider. Not my and don't ask for better resolution.?
On Sun, 11 Nov 2018, 14:35 Tom B < tbryan@... wrote: Hi Leo,
Which synthesizer board do you have?
There is a service note (E4436B-01F) that says: "Serial Numbers:
[0000A00000 / 9999Z99999]" "The ESG-B AP/DP Family of Signal Generators
has been experiencing failures in the Frac-N board assemblies. This is
due to a failure in the divide-by-eight circuit of the Divider chip A24
U313 which causes the ESG to display Error 511 "Output unleveled". All
ESG-B AP/DP units with the serial numbers mentioned above may experience
Error 511 along with UNSTABLE or NO OUPUT below 1GHz. If this occurs,
the A24 Frac-N/Divider Assembly (E4423- 60019) needs to be replaced.
This assembly should be ordered using part number E4423-69019 and should
be treated as a warranty repair. The defective assembly should then be
returned with documentation referencing this service note as "Error 511"."
Tom Bryan
On 11/11/2018 4:39 AM, Leo Bodnar wrote:
> I have E4435B signal gen from ESG series that loses output in certain
> parts of its output range 250..350MHz, 500..700MHz, etc.
> The problem seems to be in the VCO or its PLL loop.
> Its output is supposed to be 500..1000MHz before further
> multiplication/division but lower part of the range is unstable. As
> you go down in frequency from 1000MHz to 500MHz, somewhere around
> 690MHz it becomes noisy and at 680MHz it loses signal altogether.
> These siggens sometimes have prescaler U313 1GC1-4210 failure, but
> here it does not seem the case as it is further down the signal path -
> after YIG multiplier that converts 0.5-1GHz VCO output into 4-8GHz signal.
>
>
--
Alberto Vaudagna IDRA-XAM Electronics Firmware and Software division manager- Team H2politO H2politO – Politecnico di Torino
|
Re: What were your easiest and your most difficult equipment repairs?
Most difficult was a HP8591 SA that someone had - adjusted nothing was right in that unit... had to go through everything and set it to spec. And then fix a few degraded caps which were causing ‘issues’
Easiest fix was a Furuno marine radar missing a fuse - nothing in fuse holder at all.
Content by Scott
Typos by Siri
|
Re: Synthesizer module in ESG series E4435B
My friend have in his company but internal security and copyright policy is very strict. No chance to make a copy of all schematics.?
So just out of curiosity where didi you find the schematics?? I thought there no schematics avaible anywhere for this device?
Il giorno mer 14 nov 2018 alle ore 23:41 Milan Vasic < vasa1958@...> ha scritto: Someone ask for ESG Fractional N divider. Not my and don't ask for better resolution.?
On Sun, 11 Nov 2018, 14:35 Tom B < tbryan@... wrote: Hi Leo,
Which synthesizer board do you have?
There is a service note (E4436B-01F) that says: "Serial Numbers:
[0000A00000 / 9999Z99999]" "The ESG-B AP/DP Family of Signal Generators
has been experiencing failures in the Frac-N board assemblies. This is
due to a failure in the divide-by-eight circuit of the Divider chip A24
U313 which causes the ESG to display Error 511 "Output unleveled". All
ESG-B AP/DP units with the serial numbers mentioned above may experience
Error 511 along with UNSTABLE or NO OUPUT below 1GHz. If this occurs,
the A24 Frac-N/Divider Assembly (E4423- 60019) needs to be replaced.
This assembly should be ordered using part number E4423-69019 and should
be treated as a warranty repair. The defective assembly should then be
returned with documentation referencing this service note as "Error 511"."
Tom Bryan
On 11/11/2018 4:39 AM, Leo Bodnar wrote:
> I have E4435B signal gen from ESG series that loses output in certain
> parts of its output range 250..350MHz, 500..700MHz, etc.
> The problem seems to be in the VCO or its PLL loop.
> Its output is supposed to be 500..1000MHz before further
> multiplication/division but lower part of the range is unstable. As
> you go down in frequency from 1000MHz to 500MHz, somewhere around
> 690MHz it becomes noisy and at 680MHz it loses signal altogether.
> These siggens sometimes have prescaler U313 1GC1-4210 failure, but
> here it does not seem the case as it is further down the signal path -
> after YIG multiplier that converts 0.5-1GHz VCO output into 4-8GHz signal.
>
>
--
Alberto Vaudagna IDRA-XAM Electronics Firmware and Software division manager- Team H2politO H2politO – Politecnico di Torino
|
Re: What were your easiest and your most difficult equipment repairs?
I picked up a couple of Tek 7000 Series scopes for very small money, labelled as non-working.
Noticed that some clown had transposed the vertical and horizontal plugins (7A18A, 7B53A), once swapped
it was all lovely apart from a good dust out. Nice clear display too.
?
Worst repair was a Marconi Instruments TV 2914 analyser – almost every board was blown up or had been got at
by a group of chimpanzees.
Took forever to sort out, but the satisfaction at the end was magnificent on the day it burst into life (not flames!).
?
I’m sure there are hundreds of these stories, and it does make one wonder about the capability or thought
processes of some people who attempt these fixes, that are clearly out of their universe…
?
?
?
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Show quoted text
From: [email protected] [mailto:[email protected]]
On Behalf Of Bob Albert via Groups.Io
Sent: 15 November 2018 03:28
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] What were your easiest and your most difficult equipment repairs?
?
My easiest repairs weren't Agilent items.
1.? Someone gave me a non working Astron RS-20A power supply.? It has three binding posts, a negative, a positive, and a chassis ground.? He had hooked up the load between
the chassis ground and the positive.
2.? Someone else gave me a nonworking printer.? It kept giving a no-paper message.? I repositioned the paper guide - he had it backwards.
On Wednesday, November 14, 2018, 7:22:08 PM PST, hpxref <face1941@...> wrote:
Re: What were your easiest and your most difficult equipment repairs?
?Dunno about most difficult, have had a few nasties, but certainly the most time consuming was an hp 3325A
won at auction with a crazy display...ALL the interconnect ribbon cables (flat conductors sandwiched between film)
had de-laminated? so that when pulled out of sockets they 'hedge hogged" and I found it impossible to repair or plug em back in.
Found that new PC mount ribbon cable? plugs (to fit Berg floppy female ribbon connectors, I think, but its a while ago) could plug straight into
?the 3325A sockets, their round pins fitting into the hp board connectors OK. so? had to make up and solder in ribbon cables to each Berg? with heat shrink tubing over
each and every pin of each 3325A cable route...more than a weekends work.
This, plus replacing a wire wound resistor someone had put in place of a carbon type in the signal path and re programming the EPROMs,? fixed it
and became? a most? useful w.shop item.
THE EASIEST was a (dare I say it here)? TEK TM504 which was dead on purchase.? A missing fuse from the intact? fuse holder was the culprit!!!
Just nothing in the cap when removed.? No other issues with it at all
John From West Oz
|
Re: Synthesizer module in ESG series E4435B
So just out of curiosity where didi you find the schematics?? I thought there no schematics avaible anywhere for this device?
Il giorno mer 14 nov 2018 alle ore 23:41 Milan Vasic < vasa1958@...> ha scritto: Someone ask for ESG Fractional N divider. Not my and don't ask for better resolution.?
On Sun, 11 Nov 2018, 14:35 Tom B < tbryan@... wrote: Hi Leo,
Which synthesizer board do you have?
There is a service note (E4436B-01F) that says: "Serial Numbers:
[0000A00000 / 9999Z99999]" "The ESG-B AP/DP Family of Signal Generators
has been experiencing failures in the Frac-N board assemblies. This is
due to a failure in the divide-by-eight circuit of the Divider chip A24
U313 which causes the ESG to display Error 511 "Output unleveled". All
ESG-B AP/DP units with the serial numbers mentioned above may experience
Error 511 along with UNSTABLE or NO OUPUT below 1GHz. If this occurs,
the A24 Frac-N/Divider Assembly (E4423- 60019) needs to be replaced.
This assembly should be ordered using part number E4423-69019 and should
be treated as a warranty repair. The defective assembly should then be
returned with documentation referencing this service note as "Error 511"."
Tom Bryan
On 11/11/2018 4:39 AM, Leo Bodnar wrote:
> I have E4435B signal gen from ESG series that loses output in certain
> parts of its output range 250..350MHz, 500..700MHz, etc.
> The problem seems to be in the VCO or its PLL loop.
> Its output is supposed to be 500..1000MHz before further
> multiplication/division but lower part of the range is unstable. As
> you go down in frequency from 1000MHz to 500MHz, somewhere around
> 690MHz it becomes noisy and at 680MHz it loses signal altogether.
> These siggens sometimes have prescaler U313 1GC1-4210 failure, but
> here it does not seem the case as it is further down the signal path -
> after YIG multiplier that converts 0.5-1GHz VCO output into 4-8GHz signal.
>
>
-- Alberto Vaudagna IDRA-XAM Electronics Firmware and Software division manager- Team H2politO H2politO – Politecnico di Torino
|
Re: What were your easiest and your most difficult equipment repairs?
My easiest repairs weren't Agilent items.
1.? Someone gave me a non working Astron RS-20A power supply.? It has three binding posts, a negative, a positive, and a chassis ground.? He had hooked up the load between the chassis ground and the positive.
2.? Someone else gave me a nonworking printer.? It kept giving a no-paper message.? I repositioned the paper guide - he had it backwards.
Bob
On Wednesday, November 14, 2018, 7:22:08 PM PST, hpxref <face1941@...> wrote:
Re: What were your easiest and your most difficult equipment
repairs?
?Dunno about most difficult, have had a few nasties, but
certainly the most time consuming was an hp 3325A
won at auction with a crazy display...ALL the interconnect ribbon
cables (flat conductors sandwiched between film)
had de-laminated? so that when pulled out of sockets they 'hedge
hogged" and I found it impossible to repair or plug em back in.
Found that new PC mount ribbon cable? plugs (to fit Berg floppy
female ribbon connectors, I think, but its a while ago) could plug
straight into
?the 3325A sockets, their round pins fitting into the hp board
connectors OK. so? had to make up and solder in ribbon cables to
each Berg? with heat shrink tubing over
each and every pin of each 3325A cable route...more than a weekends
work.
This, plus replacing a wire wound resistor someone had put in place
of a carbon type in the signal path and re programming the EPROMs,?
fixed it
and became? a most? useful w.shop item.
THE EASIEST was a (dare I say it here)? TEK TM504 which was dead on
purchase.? A missing fuse from the intact? fuse holder was the
culprit!!!
Just nothing in the cap when removed.? No other issues with it at
all
John From West Oz
|
Re: What were your easiest and your most difficult equipment repairs?
Re: What were your easiest and your most difficult equipment
repairs?
?Dunno about most difficult, have had a few nasties, but
certainly the most time consuming was an hp 3325A
won at auction with a crazy display...ALL the interconnect ribbon
cables (flat conductors sandwiched between film)
had de-laminated? so that when pulled out of sockets they 'hedge
hogged" and I found it impossible to repair or plug em back in.
Found that new PC mount ribbon cable? plugs (to fit Berg floppy
female ribbon connectors, I think, but its a while ago) could plug
straight into
?the 3325A sockets, their round pins fitting into the hp board
connectors OK. so? had to make up and solder in ribbon cables to
each Berg? with heat shrink tubing over
each and every pin of each 3325A cable route...more than a weekends
work.
This, plus replacing a wire wound resistor someone had put in place
of a carbon type in the signal path and re programming the EPROMs,?
fixed it
and became? a most? useful w.shop item.
THE EASIEST was a (dare I say it here)? TEK TM504 which was dead on
purchase.? A missing fuse from the intact? fuse holder was the
culprit!!!
Just nothing in the cap when removed.? No other issues with it at
all
John From West Oz
|
Re: What were your easiest and your most difficult equipment repairs?
? Re: What were your easiest and your most difficult equipment
repairs?
[SNIP] <<From: Brad
Thompson
"I'm not sure whether this qualifies as my easiest-- or most
difficult--
repair.
Years ago, I purchased a Kay Elemerics multiband sweep generator"
---------------------
Hi Brad
That should? be Kay Elemetrics ??? I still have the 1520A solid
state version
I had to fix? many years ago...still find a use for it on occasions
John From West Oz
|
Re: Synthesizer module in ESG series E4435B
Someone ask for ESG Fractional N divider. Not my and don't ask for better resolution.?
On Sun, 11 Nov 2018, 14:35 Tom B < tbryan@... wrote: Hi Leo,
Which synthesizer board do you have?
There is a service note (E4436B-01F) that says: "Serial Numbers:
[0000A00000 / 9999Z99999]" "The ESG-B AP/DP Family of Signal Generators
has been experiencing failures in the Frac-N board assemblies. This is
due to a failure in the divide-by-eight circuit of the Divider chip A24
U313 which causes the ESG to display Error 511 "Output unleveled". All
ESG-B AP/DP units with the serial numbers mentioned above may experience
Error 511 along with UNSTABLE or NO OUPUT below 1GHz. If this occurs,
the A24 Frac-N/Divider Assembly (E4423- 60019) needs to be replaced.
This assembly should be ordered using part number E4423-69019 and should
be treated as a warranty repair. The defective assembly should then be
returned with documentation referencing this service note as "Error 511"."
Tom Bryan
On 11/11/2018 4:39 AM, Leo Bodnar wrote:
> I have E4435B signal gen from ESG series that loses output in certain
> parts of its output range 250..350MHz, 500..700MHz, etc.
> The problem seems to be in the VCO or its PLL loop.
> Its output is supposed to be 500..1000MHz before further
> multiplication/division but lower part of the range is unstable. As
> you go down in frequency from 1000MHz to 500MHz, somewhere around
> 690MHz it becomes noisy and at 680MHz it loses signal altogether.
> These siggens sometimes have prescaler U313 1GC1-4210 failure, but
> here it does not seem the case as it is further down the signal path -
> after YIG multiplier that converts 0.5-1GHz VCO output into 4-8GHz signal.
>
>
|
sincere apologies, was meant to go out private
not to list. My bad
Gedas, W8BYA
Gallery at
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 11/14/2018 3:52 PM, Gedas wrote:
toggle quoted message
Show quoted text
Hi Bruce, I am sorry but I do not. A friend did
sweep one to 20 GHz (his limit) and said they were fine but
other then knowing they were built in a rack by Agilent that
is all I know. The 3.5mm connectors are a good sign but no
promises. They are going exponentially BTW, almost out.
Gedas, W8BYA
Gallery at
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 11/14/2018 3:35 PM, Bruce wrote:
Interested in the 3.5 cables (either 5 04 10) do you knnow the freq
specifications of the cable assembly? I work 18 -20GHz
On Wed, November 14, 2018 12:48, Gedas wrote:
A list of items that may be of use to you with greatly reduced prices.
1. Quan (300), 12" long, RG-214 (Double-Shielded Silver), Male-N
(straight) to Male-N (90-degree) with Huber-Suhner connectors ! *_5 for
$25 & FREE SHIPPING in USA._*
2. Quan (180). Pulled from Agilent made test rack, Teflon 26" long with
3.5 mm 26 GHz connectors ! (SMA compatible). *_$25/5 shipped or $35/10
shipped. _**_FREE SHIPPING in USA._*
3. Quan (90). Pulled from Agilent made test rack, RG-316, tan Teflon
~72" long with SMA connectors. Usable well past 10 GHz. *_$25/5 shipped
or $35/10 shipped. FREE SHIPPING in USA._*
4. Quan (40) Flexible, solid, semi-rigid, Male-N to Male-SMA jumpers
(asst lengths, ~12" to ~20"), These use Huber-Suhner connectors (the
best).? This semi-rigid coax can also be soldered to using normal solder
which means the coax and/or connectors can be cut to length & re-used !
*_$25/5 shipped. FREE SHIPPING in USA._*
5. Quan (20) Brand New, Mini-Circuits, 12 dB N-Female to N-Male
connectors, DC-6 GHz. Swept these and these are SPOT on ! Really excellent
attenuators. *_$6/each plus shipping._*
6. Asst. Quan Brand New, Mini-Circuits SMA-M to SMA-F, DC-1.5 GHz. Swept
these, SPOT on ! Really excellent attenuators. (27) 1 dB, (23) 2dB, (2) 4
dB, (4) 5 dB, (14) 6 dB, (18) 10 dB, (6) 20 dB.....*_$28/5 shipped.
_**_FREE SHIPPING in USA._*
7. Quan (40) Anritsu Dual-Coil, 13 GHz SMA relays. 3-pin Molex, one side
of center will energize one coil, the other side will energize the other
coil. In the un-energized condition the two "output" ports are tied
together and grounded. As soon as one side is energized a connection is
made between the common SMA port and one output SMA port. One or two ports
can be connected to the input (common) SMA port. Either AC or DC can be
used & the coil draws about 30 mA at 12 VDC. Will pull-in as low as around
6-7 VDC and not get as warm (12 VDC & small series resistor
works great). *_$6.50/each plus shipping._*
8. Assorted Watkins-Johnson-Narda-Miteq LNA's-Preamplifiers. All
untested, some not the prettiest, WJ-5090-2 (2-4.5 GHz), WJ-6007-80 (1-4
GHz), WJ-5090-5 (2-4.5 GHz), Narda 60031 (8-12 GHz), Miteq
AM-1A-000110-1265 (1 MHz - 100 MHz), *_$20/each plus shipping._*
9. (10) NOS, Andrews L7PNM Male N-connectors in OEM container, *_$20
each plus shipping._*
PayPal or check aok as always. All I ask is if you tell me you want
something _PSE_ be prepared to pay ASAP for your item(s). Nothing worse
then when I hold things for people & they never pay.
Gedas, W8BYA
Gallery at
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
|
RFI-EMI-GUY
Michael A. Terrell