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

[W2HX]

Ok, I was referring to using 20,000 ohms instead of 20K ohms

73 Eugene W2HX


-----Original Message-----
From: David Harmon [mailto:k6xyz at sbcglobal.net] 
Sent: Tuesday, July 01, 2014 12:19 PM
To: 'Jim Haynes'; W2HX
Cc: boatanchors at mailman.qth.net; 'Al Klase'
Subject: RE: [Boatanchors] Hickok KS-15750-L1 tube tester schematic needed

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 formerly used the capital omega to mean meghoms and the lower-case omega for ohms.> ______________________________________________________________
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