[Heathkit] DX-60 Final Amplifier Tube Question

[Carl]

The W stands for ruggedization and if you look closely you can see the 
differences. Its obviously a good mobile tube.

Carl
KM1H


----- Original Message ----- 
From: "Richard Knoppow" <1oldlens1 at ix.netcom.com>
To: "Carl" <km1h at jeremy.mv.com>; "Ed - K9EW" <k9ew57 at gmail.com>; 
<heathkit at mailman.qth.net>
Sent: Wednesday, February 08, 2012 8:43 PM
Subject: Re: [Heathkit] DX-60 Final Amplifier Tube Question


>
> ----- Original Message ----- 
> From: "Carl" <km1h at jeremy.mv.com>
> To: "Ed - K9EW" <k9ew57 at gmail.com>;
> <heathkit at mailman.qth.net>
> Sent: Wednesday, February 08, 2012 5:11 PM
> Subject: Re: [Heathkit] DX-60 Final Amplifier Tube Question
>
>
>> Mine came with a 6146W replacement in it and its still
>> there working fine
>> many years later.
>>
>> There is a big difference between Class C and AB1 which I
>> guess is where
>> some rigs are fussy.
>> My Viking II is fine with 6146B's, plug and play.
>>
>> Carl
>> KM1H
>>
>    One source, which I can not now find, states that tubes
> with a W suffix were made for military contractors. They may
> have had different tollerances than the civilian versions
> but do not appear to be different tubes.
>
>
> --
> Richard Knoppow
> Los Angeles
> WB6KBL
> dickburk at ix.netcom.com
>
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