[Boatanchors] Hickok KS-15750-L1 tube tester schematic needed

[David Harmon]

The question was about 'what is the K or KS'..............
There was no need for me to get into the rest of the Bell System
complexities.....so I thought best not to mention it and KISS.
As I mentioned....yawn....zzzzzz
	
As an aside....I snagged a KS-15559 L1 Hickok from the LA TV Pool just in
time...it was actually in the hands of a gorilla getting ready to toss it
down a chute into a dumpster. 
Still works good.


73

David Harmon
K6XYZ
Sperry, OK

-----Original Message-----
From: manualman at juno.com [mailto:manualman at juno.com] 
Sent: Tuesday, July 1, 2014 1:54 PM
To: k6xyz at sbcglobal.net
Cc: jhhaynes at earthlink.net; w2hx at w2hx.com; boatanchors at mailman.qth.net;
ark at ar88.net
Subject: Re: [Boatanchors] Hickok KS-15750-L1 tube tester schematic needed

Actually there were many tools and parts used in the Bell System that did
not have a KS-number. If it was manufacturered in a WE plant, many times it
had an Apparatus Code (i.e. 601A capacitor, 352A tool, 417A tube, etc.). If
it was a "sub-part" (a part along with others parts that made a complete
item) it may only have a "comcode" (9 digit number) assigned to it. If it
was a set of completed assemblies gathered together into a larger assembly
or frame, that larger assembly or frame would be assigned a "J-code" number
or an Apparatus Code depending on the target market.
The KS-15750 was designed to WE specs and manufactured by Hickok. All parts
in that tester had to approved by WE for use in that tester.

Pete, wa2cwa
www.manualman.com

On Tue, 1 Jul 2014 11:18:56 -0500 "David Harmon" <k6xyz at sbcglobal.net>
writes:
> The Bell System has/had a method of having tools and equipment mfgd by 
> non-Bell sources.
> This apparatus was mfgd to a Bell spec called 'KS'.
> Generally....this stands for 'Kearny Specification'.
> There is some speculation that the KS spec system goes back to before 
> 1920 and was called 'Kellogg System' at the time.
> Later...much of the small tools and equipment was mfgd at the Kearny 
> plant and the 'KS' meaning morphed into 'Kearny System'.
> So..........every relay burnisher, relay adjusting tool, test 
> sets....everything used by a Bell System employee had a KS number 
> stamped into it.
> 
> AT&T printed procedures and methods called 'BSP'...Bell System 
> Practices'
> which was usually a certain test method or a step by step method of an 
> adjustment or procedure.
> In the specific 'practice' for a certain operation there would be 
> mention of a certain tool or test set called out by the KS-number.
> This is to ensure that the correct tool(s) were being used.
> 
> This includes all tube testers...........an example being the Hickok 
> mfgd tube testers that we all love.
> 
> For all you non-Bell guys....this is likely more than you ever wanted 
> or needed to know.....for the Bell guys.....well....yawn...zzzzzzz
> 
> 
> 
> 73
> 
> David Harmon
> K6XYZ
> Sperry, OK
> 
> -----Original Message-----
> From: Boatanchors [mailto:boatanchors-bounces at mailman.qth.net] On 
> Behalf Of Jim Haynes
> Sent: Tuesday, July 1, 2014 10:42 AM
> To: W2HX
> Cc: boatanchors at mailman.qth.net; Al Klase
> Subject: Re: [Boatanchors] Hickok KS-15750-L1 tube tester schematic 
> needed
> 
> On Tue, 1 Jul 2014, W2HX wrote:
> 
> > Very interesting that they didn't use "k" notation for thousands. 
> Is
> > that a notation standard that came later than when this tester was
> 
> > designed?
> 
> Don't know about that - maybe just lack of a standard.  Western 
> Electric ormerly used the capital omega to mean meghoms and the 
> lower-case omega for ohms.> 
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