Re: Series 1 & 2 boxes (was Seeking Spring Nuts for Series 1 cabinet)
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That¡¯s System II. They have removable handles. System I handles are part of the cast aluminum alloy side panels are are removable only by dropping the instrument from a considerable distance onto the handle. This process is not reversible!
Jeremy?
On Tue, Apr 21, 2020 at 2:13 PM n4buq < n4buq@...> wrote: Is a System III the type used for an HP 3456A, etc.?
Thanks,
Barry - N4BUQ
----- Original Message -----
> From: "Jeff Kruth via " <kmec=[email protected]>
> To: [email protected]
> Sent: Tuesday, April 21, 2020 3:55:07 PM
> 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=[email protected] 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
> From: [email protected]
> <[email protected]> on behalf of Jeff Kruth via
> <kmec=[email protected]>
> Sent: Tuesday, April 21, 2020 9:48 AM
> To: [email protected]
> Subject: Re: [HP-Agilent-Keysight-equipment] Seeking Spring Nuts for Series 1
> cabinet
> 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.
>
>
>
>
>
>
>
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Jeremy Nichols