Re: Series 1 & 2 boxes (was Seeking Spring Nuts for Series 1 cabinet)
Thank you, Jeff, for finding that catalog page.
So the old vacuum-tube instruments like the 428 and 606?are?pre-System, cast side panel?boxes like the 5245 and 740 are?System I, and cabinets with corner rails like the 339A?are System
II.
"System III" may be my defective memory. ?Somebody will know.
Dave Wise
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Show quoted text
From: [email protected] <[email protected]> on behalf of Jeff Kruth via groups.io <kmec@...>
Sent: Tuesday, April 21, 2020 1:55 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment]Series 1 & 2 boxes (was Seeking Spring Nuts for Series 1 cabinet)
?
Well, I was wrong and Robert corrected me. What I thought were System II were System I cases
(not series), checked my 1976 Catalog, page 475 . They had no nomenclature for the earlier ones.??
So what is a System III case? I have heard mention of it.
Jeff
In a message dated 4/21/2020 2:38:06 PM Eastern Standard Time, kmec@... writes:
Hi Dave!
Series One is the 200C, etc, series of rounded corner cabinets that housed Rack mount instruments. The 340 Noise figure meter is an example that comes to mind: A puce cabinet
that is held in place by 2 set crews under the front edge that allows the cabinet to slip off and reveal a 19 inch rack panel inside, ready to bolt up. There were smaller instruments like the 200 CD, the 428A clip-on ammeter, 425A DC Microvoltmeter. Othe cases
were the 608A-F Sig Gen, 606A/B sig gen, etc.
The series 2 were cases like the 432A power meter and the 8640B sig gen, 8690 sweeper, 141T Spec An, etc. These used the cast aluminum side rails.
Regards,
Jeff
In a message dated 4/21/2020 1:01:13 PM Eastern Standard Time,
david_wise@... writes:
??Thank you, Jeff! ?I only need two. ?I'll send you my address off-list.
?
Now I'm confused. ?If I'm Series 2 (cast Al sides), then what was Series 1? ?Is there a cheat sheet, or representative example models?
?
Thanks,
Dave Wise
I have a stash from scrapping HP stuff. How many do you need? Also isnt the 740 a series 2 cabinet? With the cast Aluminum side rails, etc?
Jeff
In a message dated 4/21/2020 11:49:16 AM Eastern Standard Time,
david_wise@... writes:
The top and bottom covers of the 740B are secured by screws which go through 6-32 J-style?spring nuts clipped onto the side panels. ?Except I'm missing some of them. ?The manual doesn't mention them.
?
These particular?spring nuts (speed?nuts, clip nuts, Tinnerman nuts, J-nuts, U-nuts)?seem to be obsolete or custom-made; I can't find anything to
match.
?
The sticking point is the?1/8-inch panel depth.
?
All I can find?are for a 1/16-inch?panel.
?
Got any leads?
?
Thanks,
Dave Wise
?
PS: I think U-style would work as well as J-style.
|
Re: Series 1 & 2 boxes (was Seeking Spring Nuts for Series 1 cabinet)
Well, I was wrong and Robert corrected me. What I thought were System II were System I cases (not series), checked my 1976 Catalog, page 475 . They had no nomenclature for the earlier ones.??
So what is a System III case? I have heard mention of it.
Jeff
In a message dated 4/21/2020 2:38:06 PM Eastern Standard Time, kmec@... writes:
Hi Dave!
Series One is the 200C, etc, series of rounded corner cabinets that housed Rack mount instruments. The 340 Noise figure meter is an example that comes to mind: A puce cabinet that is held in place by 2 set crews under the front edge that allows the cabinet to slip off and reveal a 19 inch rack panel inside, ready to bolt up. There were smaller instruments like the 200 CD, the 428A clip-on ammeter, 425A DC Microvoltmeter. Othe cases were the 608A-F Sig Gen, 606A/B sig gen, etc.
The series 2 were cases like the 432A power meter and the 8640B sig gen, 8690 sweeper, 141T Spec An, etc. These used the cast aluminum side rails.
Regards,
Jeff
In a message dated 4/21/2020 1:01:13 PM Eastern Standard Time, david_wise@... writes:
??Thank you, Jeff! ?I only need two. ?I'll send you my address off-list.
?
Now I'm confused. ?If I'm Series 2 (cast Al sides), then what was Series 1? ?Is there a cheat sheet, or representative example models?
?
Thanks,
Dave Wise
I have a stash from scrapping HP stuff. How many do you need? Also isnt the 740 a series 2 cabinet? With the cast Aluminum side rails, etc?
Jeff
In a message dated 4/21/2020 11:49:16 AM Eastern Standard Time, david_wise@... writes:
The top and bottom covers of the 740B are secured by screws which go through 6-32 J-style?spring nuts clipped onto the side panels. ?Except I'm missing some of them. ?The manual doesn't mention them.
?
These particular?spring nuts (speed?nuts, clip nuts, Tinnerman nuts, J-nuts, U-nuts)?seem to be obsolete or custom-made; I can't find anything to match.
?
The sticking point is the?1/8-inch panel depth.
?
All I can find?are for a 1/16-inch?panel.
?
Got any leads?
?
Thanks,
Dave Wise
?
PS: I think U-style would work as well as J-style.
|
Re: ag33500b programmers manual
Got it from Keysight. They had to go find it first but Support got back with the link.
Thx
|
+1 on "Soul of a New Machine" for which Tracy Kidder rightfully received a Pulitzer prize.? ?Brilliant description of the product development process and will sound very familiar to those of us who have worked at start-up companies.?
Keysight << Agilent <<<< HP (the original HP, of course)
Jim Ford?
Sent from my Verizon, Samsung Galaxy smartphone
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Show quoted text
-------- Original message -------- From: "Greg Muir via groups.io" <big_sky_explorer@...> Date: 4/21/20 11:01 AM (GMT-08:00) Subject: Re: [HP-Agilent-Keysight-equipment] Book on Hp
I also recommend the following:
?
¡°The HP Way: How Bill Hewlett and I Built Our Company¡± by David Packard
ISBN 978-0-06-084579-7
?
¡°Bill & Dave¡¯s Memos: A Collection of Bill Hewlett & Dave Packard¡¯s Writings¡± edited by Albert Yuen
ISBN 978-1-4243-2781-2
?
There was also a book published years ago titled ¡°The Soul of a New Machine¡± by Tracy Kidder back in 1981 (reprinted in 2000 under ISBN 978-0-3164-9197-6) not related to HP but is a very absorbing book about how development of an electronic product nearly became a living entity in the eyes of the designers as it went through the design process.? I highly recommend it as well.
?
Nowadays companies are in the eyes of management simply something to acquire to make their company bigger and to reap more profits.? Except for the tiny entrepreneur the average company no longer has time for management to feel like what they put into their products is part of their own being to give the best to customers.? This was borne out by the theft of the HP name to put on cheap jelly bean products of which today¡¯s customers are clueless about the actual corporation and founders who put their entire lives into making that name so famous from the quality products that they offered.? In those days living customers were the focus, not the money that they offered.? The money was somewhat of a form of congratulation to tell Bill and Dave that they did a successful job and to promote more excellent products to be offered in the future.
?
When I talk to Agilent/Keysight/whatever sales people & engineers I still use the HP name which either draws puzzled looks or pointed comments that the company is ¡°NOW KEYSIGHT!!¡± Yes, but where did this now-funny-named company originate?
?
Greg
|
Re: Decline, was Re: [HP-Agilent-Keysight-equipment] new File called App notes
Software bloat does not just affect "desktop" programs, it is a problem with embedded code too. I'm no programmer, but hacked some code together for a PIC16F87x to run the prototype of a small machine many yers ago. It had a very simple serial command interface. It was written with a basic complier (PicBasicPro). Prototype all worked so the design was given to the professional programmers to write "proper" code. A week later they came back and asked for a change to a PIC with more memory. In short, while I'd used the PIC's UART they used a bought in "C" comms libary that bit-banged the ame pin ......
In another case, a machine had to calculate timing for a dispense volume based on measured supply pressure and the programmers requested a 16bit processor thet supported floating point math.
I asked why they needed floating point math and then explained the significance of the choice of 4.096V as the ADC reference
Why complicate the code when you can tailor the hardware (or read the data sheet).
Robert G8RPI.
|
Re: Seeking Spring Nuts for Series 1 cabinet
OK, fair enough. But what were the "other" cases from the dawn of time. series "0"??
Jeff
In a message dated 4/21/2020 2:50:05 PM Eastern Standard Time, robert8rpi@... writes:
Forgot to say,
740B is Original "series I"
|
Re: Seeking Spring Nuts for Series 1 cabinet
Sorry for being dense, Robert, but could you name a specific model from the catalog as an example of System 2.
What cabinet?is the 339A Distortion Measuring Set?
Thanks,
Dave Wise
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HP never called the original modular cases System I but did call the later one System II
Original (System I) had one piece cast alloy side panel frames with continious exposed edge and vinyl coated flat alloy side panel inserts. Front and rear panels were folded flat alloy sheet lacated in slots in the side frame and clamped between them.
System II had one piece cast alloy front and rear panel frames, connected by either two internal side castings (generally on small cases) or 4 corner casting on larger ones. Front an rear panels alloy and held in frame by hidden screws.
See the 1976 catalogue for pictuers of both.
Robert G8RPI.
|
On 4/21/20 2:21 PM, n4buq wrote: I'm not an avid book reader but I have read "Soul of a New Machine" (twice as I recall) and I found that book fascinating and kept my attention throughout. Those guys worked so hard on that project. I'll bet that even though the hours were unbelievably long, there was a spirit of commitment to get that product out the door that I'd guess is missing in most workplaces nowadays. Of course it's missing. When corporations treat their employees like a liability, a necessary evil, or "dirty" people, who could possibly be motivated to care about their job or the company's products? Is it five o'clock yet? Every now and then I run across a company that's run in a way that Bill and Dave would approve of. I'm lucky (VERY lucky) to have such a company as my main customer now. But these are very rare anymore, thanks to the idiot who wrote the paper that resulted in "suits gone wild", referencing my post the other day. -Dave -- Dave McGuire, AK4HZ New Kensington, PA
|
ag33500b programmers manual
Does anyone here have the?ag33500b programmers manual that they can send to me? I'm told it came with the instrument on a CD but we can't find it.
Chuck Lippmeier
|
Bill I think I know that telco supplier. Comments are accurate. Yes HP and the others we know have gone away. Especially the research that delivered great equipment. But everything moves on. I enjoy the HP history and the great gear I have picked up for pennies per pound. It all works with a?bit of TLC and help from folks on lists like this. Regards Paul.
|
Re: HP8562A Errors 304,335,317,333
The Configuration is a voltage doubler directly coupled on the 60khz switch mode transformer. It is a well known failure that the capacitor goes open. Ofthen with cap getting bulky. Change it to a good 220uF Cap. this will work.
best regards Peter OZ1LPR
I assume that the C301 is connected to the top of the transformer that the lower CR304 is connected.? They are coupling some of the AC from the transformer up to CR301/CR302. I don¡¯t work on doublers very much but that¡¯s what the diode configuration would suggest.?
I¡¯m not sure what the +28 is used for but it won¡¯t be very much current and C301 being wonky will keep this circuit from working.
?
Steve
?
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Show quoted text
From: [email protected] < [email protected]>
On Behalf Of Peter Hansen
Sent: Tuesday, April 21, 2020 7:59 AM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] HP8562A Errors 304,335,317,333
?
hello i think it is to galvanize isolate that supply. But it is exact the cap. I bet it is open. just use a 220uf i do that all the time to bring it back.
let me know once you tried
Peter,
?
Have a 2nd PSU to remove and use as Test components.
One quick question?
?
What type of PSU is this never seen this type of config before!
?
?
?
There is no physical connectivity to the Diodes CR301/302 only the decoupling cap C301(Suggested being faulty).
Is this a voltage doubling circuit , not sure?
?
Cheers,
Stu.
?
?
Hello It can work stand alone. I have had failures in the PSU in a 180uF capacitor. It was a blue one. It was open and leaked alittle. If you need i Can find a psu and point to it. The cap was open and
the 28v was absent.
PSU is taken out from the top side all 4 pcb must be folded out and below the alu cover is the PSU.
Would Like to say Good news but?
?
Managed to get the Analyser on the bench today for a quick check and looks as if 28Volts not there.
?
Also getting that smell of Burning rubber so worried could be causing more damage and need to isolate the source and start diagnosing supply.
?
Can the PSU work standalone, or is it load conscious?
?
Stu.
?
?
?
?
?
hello Stu if you look on A2 on the side you see the LEDs for the PSU. All should be LIT. I am sure this is not a PSU issue.
If you work through the 300/600Mhz chain with an osilloscope you can check where the signal dissapears. I remember the 600Mhz is made in a doubler and if signal is too small you have not enough for doubling
to 600Mhz.
Peter,
?
Ok from schematic I can see the 600MHz Oscillator ¨¤ Buffer
¨¤ /2 = 300Mhz
¨¤ Offset Loop Buffer. Is that correct?
Is it the /2 device your talking about? The whole board seems to be a 600Mhz PLL with 10Mhz ref at source.
Correct me if I¡¯m wrong.
?
I still think something burn¡¯t out although th PSU looks clean.
Just prepping up before getting My hands dirty..
?
Stu.
?
?
Hello Stu I must correct my self. The 8562A is before use og MMIC. area is still the same. It is just discrete amplifiers. Order a schematics from Artic media ant look for Radio Frequency module look
in the page with the generation of 300/600Mhz.
Reason why you can?t measure anything is because the 600Mhz is used for third mixer.
Peter,
?
Which board are we talking about ?
Still looking for the LED PSU indicators on the A2 card.
?
Presume you are referring RF board..?
Is this an off the shelf part or HP proprietary?
?
Thanks,
?
Stu.
?
?
Hello Group a TAM is not needed in this case. It is simply a MMIC in the 300/600Mhz chain that is bad.
I believe Harke has a Hp85629A TAM for sale.
best regards Peter Hansen
I suspect you might be able to rent the TAM from one of the ETE rental outfits for a month or so for not a horrible price.? I believe that Tam Hanna has one or two for sale, I may purchase one from him for my own use with my 8562A.
Don Bitters
|
One of my favorite rants, modern engineering is all about churning out the minimum kit that a company can sell. HP lost its way long ago, friend of mine worked there on some of the fabulous stuff that HP did, got tossed aside when HP decided the future was in PCs. Curse one exec to Hell, you can guess which one. I just retired after a long telecom career, saw how dysfunctional modern telecom companies are. Don't believe any press you hear, we now protect bloated companies that forgot how to innovate years ago. It constantly amazes me how great the instruments are we can now get for a song (well, given a rational seller) are. I think my 54542A is just stunning. 2 Gs/sec simultaneous on 4 chans? Just wow. Before I quit and retired from a big telecom company, no name, but they are in Sweden :) I was stunned at how there was zero involvement with customers as to needs, all needs determined by 'architecture working groups', i.e, people that couldn't actually do anything useful, but could pontificate endlessly about 'how things should be done', with no experience to justify that. Oh well, end of rant.
|
Re: Seeking Spring Nuts for Series 1 cabinet
Forgot to say,
740B is Original "series I"
|
"Soul of a New Machine" was a great book.
Started reading it at lunch hour at college. I think in third year. Finished it in one sitting. Skipped?classes till I was done that day.
Changed the direction of? my career from Mechanical?( What my Graduation Paperwork says) to Electronics. Looking back 35 years it was the best thing I ever did.
Dave VE7HR
On Tue, Apr 21, 2020 at 11:21 AM n4buq < n4buq@...> wrote: I'm not an avid book reader but I have read "Soul of a New Machine" (twice as I recall) and I found that book fascinating and kept my attention throughout.? Those guys worked so hard on that project.? I'll bet that even though the hours were unbelievably long, there was a spirit of commitment to get that product out the door that I'd guess is missing in most workplaces nowadays.
Thanks,
Barry - N4BUQ
----- Original Message -----
> From: "Greg Muir via " <big_sky_explorer=[email protected]>
> To: [email protected]
> Sent: Tuesday, April 21, 2020 1:01:18 PM
> Subject: Re: [HP-Agilent-Keysight-equipment] Book on Hp
>
> I also recommend the following:
>
> ¡°The HP Way: How Bill Hewlett and I Built Our Company¡± by David Packard
>
> ISBN 978-0-06-084579-7
>
> ¡°Bill & Dave¡¯s Memos: A Collection of Bill Hewlett & Dave Packard¡¯s Writings¡±
> edited by Albert Yuen
>
> ISBN 978-1-4243-2781-2
>
> There was also a book published years ago titled ¡°The Soul of a New Machine¡±
> by Tracy Kidder back in 1981 (reprinted in 2000 under ISBN
> 978-0-3164-9197-6) not related to HP but is a very absorbing book about how
> development of an electronic product nearly became a living entity in the
> eyes of the designers as it went through the design process. I highly
> recommend it as well.
>
> Nowadays companies are in the eyes of management simply something to acquire
> to make their company bigger and to reap more profits. Except for the tiny
> entrepreneur the average company no longer has time for management to feel
> like what they put into their products is part of their own being to give
> the best to customers. This was borne out by the theft of the HP name to put
> on cheap jelly bean products of which today¡¯s customers are clueless about
> the actual corporation and founders who put their entire lives into making
> that name so famous from the quality products that they offered.? In those
> days living customers were the focus, not the money that they offered.? The
> money was somewhat of a form of congratulation to tell Bill and Dave that
> they did a successful job and to promote more excellent products to be
> offered in the future.
>
> When I talk to Agilent/Keysight/whatever sales people & engineers I still use
> the HP name which either draws puzzled looks or pointed comments that the
> company is ¡°NOW KEYSIGHT!!¡± Yes, but where did this now-funny-named company
> originate?
>
> Greg
>
>
>
>
|
Re: Seeking Spring Nuts for Series 1 cabinet
HP never called the original modular cases System I but did call the later one System II
Original (System I) had one piece cast alloy side panel frames with continious exposed edge and vinyl coated flat alloy side panel inserts. Front and rear panels were folded flat alloy sheet lacated in slots in the side frame and clamped between them.
System II had one piece cast alloy front and rear panel frames, connected by either two internal side castings (generally on small cases) or 4 corner casting on larger ones. Front an rear panels alloy and held in frame by hidden screws.
See the 1976 catalogue for pictuers of both.
Robert G8RPI.
|
Re: Series 1 & 2 boxes (was Seeking Spring Nuts for Series 1 cabinet)
Hi Dave!
Series One is the 200C, etc, series of rounded corner cabinets that housed Rack mount instruments. The 340 Noise figure meter is an example that comes to mind: A puce cabinet that is held in place by 2 set crews under the front edge that allows the cabinet to slip off and reveal a 19 inch rack panel inside, ready to bolt up. There were smaller instruments like the 200 CD, the 428A clip-on ammeter, 425A DC Microvoltmeter. Othe cases were the 608A-F Sig Gen, 606A/B sig gen, etc.
The series 2 were cases like the 432A power meter and the 8640B sig gen, 8690 sweeper, 141T Spec An, etc. These used the cast aluminum side rails.
Regards,
Jeff
In a message dated 4/21/2020 1:01:13 PM Eastern Standard Time, david_wise@... writes:
??Thank you, Jeff! ?I only need two. ?I'll send you my address off-list.
?
Now I'm confused. ?If I'm Series 2 (cast Al sides), then what was Series 1? ?Is there a cheat sheet, or representative example models?
?
Thanks,
Dave Wise
I have a stash from scrapping HP stuff. How many do you need? Also isnt the 740 a series 2 cabinet? With the cast Aluminum side rails, etc?
Jeff
In a message dated 4/21/2020 11:49:16 AM Eastern Standard Time, david_wise@... writes:
The top and bottom covers of the 740B are secured by screws which go through 6-32 J-style?spring nuts clipped onto the side panels. ?Except I'm missing some of them. ?The manual doesn't mention them.
?
These particular?spring nuts (speed?nuts, clip nuts, Tinnerman nuts, J-nuts, U-nuts)?seem to be obsolete or custom-made; I can't find anything to match.
?
The sticking point is the?1/8-inch panel depth.
?
All I can find?are for a 1/16-inch?panel.
?
Got any leads?
?
Thanks,
Dave Wise
?
PS: I think U-style would work as well as J-style.
|
I'm not an avid book reader but I have read "Soul of a New Machine" (twice as I recall) and I found that book fascinating and kept my attention throughout. Those guys worked so hard on that project. I'll bet that even though the hours were unbelievably long, there was a spirit of commitment to get that product out the door that I'd guess is missing in most workplaces nowadays.
Thanks,
Barry - N4BUQ
toggle quoted message
Show quoted text
----- Original Message ----- From: "Greg Muir via groups.io" <big_sky_explorer@...>
To: [email protected]
Sent: Tuesday, April 21, 2020 1:01:18 PM
Subject: Re: [HP-Agilent-Keysight-equipment] Book on Hp
I also recommend the following:
¡°The HP Way: How Bill Hewlett and I Built Our Company¡± by David Packard
ISBN 978-0-06-084579-7
¡°Bill & Dave¡¯s Memos: A Collection of Bill Hewlett & Dave Packard¡¯s Writings¡±
edited by Albert Yuen
ISBN 978-1-4243-2781-2
There was also a book published years ago titled ¡°The Soul of a New Machine¡±
by Tracy Kidder back in 1981 (reprinted in 2000 under ISBN
978-0-3164-9197-6) not related to HP but is a very absorbing book about how
development of an electronic product nearly became a living entity in the
eyes of the designers as it went through the design process. I highly
recommend it as well.
Nowadays companies are in the eyes of management simply something to acquire
to make their company bigger and to reap more profits. Except for the tiny
entrepreneur the average company no longer has time for management to feel
like what they put into their products is part of their own being to give
the best to customers. This was borne out by the theft of the HP name to put
on cheap jelly bean products of which today¡¯s customers are clueless about
the actual corporation and founders who put their entire lives into making
that name so famous from the quality products that they offered.? In those
days living customers were the focus, not the money that they offered.? The
money was somewhat of a form of congratulation to tell Bill and Dave that
they did a successful job and to promote more excellent products to be
offered in the future.
When I talk to Agilent/Keysight/whatever sales people & engineers I still use
the HP name which either draws puzzled looks or pointed comments that the
company is ¡°NOW KEYSIGHT!!¡± Yes, but where did this now-funny-named company
originate?
Greg
|
I also recommend the following:
?
¡°The HP Way: How Bill Hewlett and I Built Our Company¡± by David Packard
ISBN 978-0-06-084579-7
?
¡°Bill & Dave¡¯s Memos: A Collection of Bill Hewlett & Dave Packard¡¯s Writings¡± edited by Albert Yuen
ISBN 978-1-4243-2781-2
?
There was also a book published years ago titled ¡°The Soul of a New Machine¡± by Tracy Kidder back in 1981 (reprinted in 2000 under ISBN 978-0-3164-9197-6) not related to HP but is a very absorbing book about how development of an electronic product nearly became a living entity in the eyes of the designers as it went through the design process.? I highly recommend it as well.
?
Nowadays companies are in the eyes of management simply something to acquire to make their company bigger and to reap more profits.? Except for the tiny entrepreneur the average company no longer has time for management to feel like what they put into their products is part of their own being to give the best to customers.? This was borne out by the theft of the HP name to put on cheap jelly bean products of which today¡¯s customers are clueless about the actual corporation and founders who put their entire lives into making that name so famous from the quality products that they offered.? In those days living customers were the focus, not the money that they offered.? The money was somewhat of a form of congratulation to tell Bill and Dave that they did a successful job and to promote more excellent products to be offered in the future.
?
When I talk to Agilent/Keysight/whatever sales people & engineers I still use the HP name which either draws puzzled looks or pointed comments that the company is ¡°NOW KEYSIGHT!!¡± Yes, but where did this now-funny-named company originate?
?
Greg
|
Re: Seeking Spring Nuts for Series 1 cabinet
??Thank you, Jeff! ?I only need two. ?I'll send you my address off-list.
Now I'm confused. ?If I'm Series 2 (cast Al sides), then what was Series 1? ?Is there a cheat sheet, or representative example models?
Thanks,
Dave Wise
toggle quoted message
Show quoted text
I have a stash from scrapping HP stuff. How many do you need? Also isnt the 740 a series 2 cabinet? With the cast Aluminum side rails, etc?
Jeff
In a message dated 4/21/2020 11:49:16 AM Eastern Standard Time, david_wise@... writes:
The top and bottom covers of the 740B are secured by screws which go through 6-32 J-style?spring nuts clipped onto the side panels. ?Except I'm missing some of them. ?The manual doesn't mention them.
?
These particular?spring nuts (speed?nuts, clip nuts, Tinnerman nuts, J-nuts, U-nuts)?seem to be obsolete or custom-made; I can't find anything to
match.
?
The sticking point is the?1/8-inch panel depth.
?
All I can find?are for a 1/16-inch?panel.
?
Got any leads?
?
Thanks,
Dave Wise
?
PS: I think U-style would work as well as J-style.
|
Re: Seeking Spring Nuts for Series 1 cabinet
??No joy there either. ?McMaster does have one "clip-on nut" for number 6 sheet metal screw and 1/8-inch panel but the throat depth (from bend to hole) is about twice the 3/16-inch I require. ?Fastenal has one "U-type spring nut" but it's?0.040-inch panel
and everything else is thousand-dollar minimum?quantity. ?It was the same frustrating story everywhere I looked. ?Either no info, didn't meet spec, or out-of-reach price.
Jeff Kruth comes to the rescue up-thread with a personal stash. ?Thanks, Jeff!
Dave Wise
toggle quoted message
Show quoted text
Greetings,
How about McMaster Carr or Fastenal?
Worth a shot.
Good hunting!
Ken
The top and bottom covers of the 740B are secured by screws which go through 6-32 J-style?spring nuts clipped onto the side panels. ?Except I'm missing some of them. ?The manual doesn't mention them.
These particular?spring?nuts (speed?nuts, clip nuts, Tinnerman nuts, J-nuts, U-nuts)?seem
to be obsolete or custom-made; I can't find anything to match.
The sticking point is the?1/8-inch panel depth.
All I can find?are for a 1/16-inch?panel.
Got any leads?
Thanks,
Dave Wise
PS: I think U-style would work as well as J-style.
|
Dave McGuire