[Milsurplus] Type I-70-B Meters HOW HOT ARE THEY!!

[Mike Hanz]

Okay, I give up.  For the members of the Funk and Wagnall's "Truth in 
Definitions" Dictionary Corps, "or its equivalent" below is intended to 
describe removing air  from the working space under negative pressure so 
that an errant dislodged particle would be removed from possible 
inhalation by the worker, be it human being or other primate.  I 
sincerely hope that this definition is sufficiently accurate for all to 
agree on.  Sheesh - this is why I've stopped posting to these groups!

Mike Hanz wrote:

> Well, 'very' hot is a relative term, but I'm glad you checked.  The 
> danger is not in the enclosed instrument, nor even in the uncovered 
> one - in my demented opinion.  The real "whoa, Nelly!" is the stray 
> dust particle that can be brushed off or blown away from the uncovered 
> meter face by a breath of air.  That can be inhaled and potentially be 
> a big problem for a person working on the movement.  AFAIK, if you 
> keep it inside its glass and plastic prison, you shouldn't have any 
> worries.  A laminar flow booth or its equivalent would be useful if 
> you need to work on one.
>
> 73,
> Mike
>
> n2lxm@juno.com wrote:
>
>> Greetings All,
>>
>>
>>     A week or two ago I posted a message about the I-70-B Tuning 
>> Meter. I
>> received many responses to it. One did indicate that these meters may be
>> very hot( Radioactive ). Well after taking two apart and doing some much
>> needed maintenance I was able to measure them with a survey meter. With
>> the meter in it's housing the reading was appox 2.0 Mr/Hr, and with the
>> meter out of the housing the reading was 40 Mr/Hr. That's a big 
>> increase.
>> So I went around the shop/shack and checked all the old Military meters,
>> most read in the 2 - 3 Mr/Hr range. So if your not sleeping with them up
>> against your skin it will be O.K. .  I all so found that the front panel
>> of a BC-1306 is Hot too, I have had a receiver section mounted in a 
>> small
>> cabinet siting on the upper shelf of my work bench for a few years 
>> now. I think I may invest in some thin lead sheeting to cover things 
>> up when I
>> am not using them, but the lead can be just as bad, Oh well life goes 
>> on.
>>
>>
>>
>>
>>
>>                                         Jeff N2LXM
>>                                          American
>>                                            Patriot
>>                                Amateur Radio Operator
>>                         Proud Father of Two U.S. Marines
>>
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>>  
>>
>
>
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