[ARC5] A Tube Puzzle

[Geoff]

While many believe the W meant military that was only true if it also had a 
JAN or similar designation. The W stood for ruggedized service in any 
application.


----- Original Message ----- 
From: "Richard Knoppow" <1oldlens1 at ix.netcom.com>
To: <jfor at quikus.com>
Cc: <arc5 at mailman.qth.net>
Sent: Monday, April 30, 2012 7:14 PM
Subject: Re: [ARC5] A Tube Puzzle


>
> ----- Original Message ----- 
> From: "J. Forster" <jfor at quikus.com>
> To: "Richard Knoppow" <1oldlens1 at ix.netcom.com>
> Cc: <kgordon2006 at frontier.com>; <arc5 at mailman.qth.net>
> Sent: Monday, April 30, 2012 4:01 PM
> Subject: Re: [ARC5] A Tube Puzzle
>
>
>>
>> I believe W signifies a ruggedized tube for higher
>> vibration service.
>>
>> -John
>
>     While a lot of W tubes are ruggedized the W
> specifically means the tube was made for a government
> contract, either directly for the government or for a
> contractor.  Some W tubes may have had special
> specifications or constructions, such as being vibration
> resistant, but its very difficult to find the information.
> In general they are directly interchangeable with standard,
> i.e., non-W tubes.
>
>
> --
> Richard Knoppow
> Los Angeles
> WB6KBL
> dickburk at ix.netcom.com
>
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