[Boatanchors] 6146 vs 6146A vs 6146B or 6146W

[Gary]

Speaking of 6146W's, I have a set of these made by "BOSTRON", never heard of 
them. They have a white porcelain base with nickel plates. Any  one ever run 
across such animals?
Regards,
Gary
----- Original Message ----- 
From: "Richard Knoppow" <1oldlens1 at ix.netcom.com>
To: <pulsarxp at embarqmail.com>; <boatanchors at mailman.qth.net>; 
<cemilton at aol.com>
Sent: Tuesday, July 05, 2011 1:15 PM
Subject: Re: [Boatanchors] 6146 vs 6146A vs 6146B or 6146W


>
> ----- Original Message ----- 
> From: <cemilton at aol.com>
> To: <pulsarxp at embarqmail.com>; <boatanchors at mailman.qth.net>
> Sent: Tuesday, July 05, 2011 4:46 AM
> Subject: Re: [Boatanchors] 6146 vs 6146A vs 6146B or 6146W
>
>
>>
>> I probably do not have the total experience level as Lee,
>> but I've also made the various subs of the 6146 family and
>> also not had any problems.  I've used them interchangeably
>> in my Collins, Heath, Eico, EFJ and WRL rigs.  I, too, try
>> to run them as the individual manuals prescribe.  Not a
>> problem to date.
>>
>> 73
>> Chuck
>> W4MIL
>
>    FWIW, W tubes were sold to either the government
> directly or to government contractors. Some of these tubes
> may have had to meet special specifications but probably
> most were simply stock tubes that may have had to be tested
> before packaging.
>    In many cases the difference between a plain tube and
> its A version is controlled heater warm up. Since the 6146
> was widely used in mobile equipment that may apply to it. I
> think the B version has somewhat higher plate dissipation.
>
>
> --
> Richard Knoppow
> Los Angeles
> WB6KBL
> dickburk at ix.netcom.com
>
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