[Boatanchors] tube tester readings

[Clarke, Tom AIR4.0P NATOPS]

Wiki says mho is still commonly used in electronics.  Siemens is recognized as an SI internationally, however, as they state, "it may be confused with the manufacturer Siemens AG".  It is the formal definition.

Wiki is not necessarily authoritative. (!)

Some of my friends prefer mho and some of my friends prefer Siemens....I support my friends! 

Tom/W4OKW


Tom Clarke
Wyle, Inc  Aeronautics
P3 Product Lead, PEO(A)
USN/USMC National Airworthiness Office
Naval Air Systems Command, AIR-4.0P
(301) 995-3793/DSN 995-3793
Fax: (301) 757-6599
Cell (301) 904-2053
frederic.clarke at navy.mil

In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual. -Galileo Galilei, physicist and astronomer (1564-1642)

-----Original Message-----
From: Price Smith [mailto:w0rihps at sbcglobal.net] 
Sent: Tuesday, February 23, 2010 7:28 PM
To: jfor at quik.com; Dick KF4NS
Cc: boatanchors at mailman.qth.net
Subject: Re: [Boatanchors] tube tester readings


The term Mhos ( 1/Ohms ) has not been in use in several decades. The Mho was 
changed to
The Siemens.

Regards and 73....Price WØRI



>
> Transcoinductance is:
>
> Change in Plate Current / Change in Grid Voltage
>
> The units of measure are reciprocal Ohms (1/Ohms) also called Mhos
>
>
>
>> Ok, this may seem like a duh to some, but on my B&K Dyna-jet tube
>> tester, the meter is scaled numerically from 1-120 but I have no idea
>> what the reference quantity means. The REPLACE-REJECT-GOOD markings
>> are not too much for my small brain. I know this is a mutual
>> conductance tester and I know what that means but have no idea how
>> this scale translates to that.
>>
>> Another unknown is regarding dual section tubes. The chart shows a
>> test 1 and test 2 but no reference in the manual as to which section
>> of the tube is which.
>>
>> Please enlighten me.
>>
>> Thanks and 73, Dick KF4NS
>> St Petersburg, FL 33714 USA
>> Keep The Glow!
>
>
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