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Re: [Amps] New Amps at Dayton

To: "Bob Maser" <bmaser@tampabay.rr.com>, "Dennis W0JX" <w0jx@yahoo.com>, "Amplifiers" <amps@contesting.com>
Subject: Re: [Amps] New Amps at Dayton
From: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Tue, 20 May 2008 11:06:52 -0400
List-post: <amps@contesting.com">mailto:amps@contesting.com>
 Ive heard that the 4CX1000's will be the Penta brand, made in China.

I use a lot of Penta tubes for customer repairs and 6M conversions and Im 
very impressed with the quality and consistency.

How come the Russians have stopped production? I thought they needed Yankee 
dollars.

Carl
KM1H
Amplifier Repair and 6M Conversions Since 1964
----- Original Message ----- 
From: "Bob Maser" <bmaser@tampabay.rr.com>
To: "Dennis W0JX" <w0jx@yahoo.com>; "Amplifiers" <amps@contesting.com>
Sent: Tuesday, May 20, 2008 10:23 AM
Subject: Re: [Amps] New Amps at Dayton


> The new Alpha amp that runs a pair of 4CX1000A's is the 8410.  This amp 
> uses
> a 3.6KVA plate transformer.
> Also at Dayton Emtron introduced their new DX2B which also uses the
> 4CX1000A.  They are in the process of introducing the DX3B which will run 
> a
> pair of the same tube.  Looks like all the manufacturers of amps are
> scrambling to replace the Russian tubes.  The 4CX1000A can be replaced by
> the 4CX1500B, which has higher plate dissipation(remember the 30S-1 mod 
> with
> the high screen voltage?).
>
> Bob W6TR
> ----- Original Message ----- 
> From: "Dennis W0JX" <w0jx@yahoo.com>
> To: "Amplifiers" <amps@contesting.com>
> Sent: Tuesday, May 20, 2008 9:42 AM
> Subject: Re: [Amps] New Amps at Dayton
>
>
>> The only thing that I saw at Dayton worth noting is a change in the
>> current Alpha 8100.
>>
>>  The finals have been replaced with TWO 4CX1000A's instead of the
>> 4CX800A7's and the amp has been relabeled either an Alpha 8200 0r 8400
>> (sorry I tossed the literature and can't remember the exact number).
>>
>>  Anyway, this should be considered a warning to any amp owner who has an
>> Alpha 91, 99 or 8100, QRO 2500, or ACOM 1000 and 2000A. Alpha said the
>> supply of GU-74B's is drying up quickly and they made the switch to 
>> ensure
>> availability.
>>
>>  Incidentally, the 4CX1000A's used are NOT Eimac but made by Penta in
>> China.
>>
>>  73, Dennis W0JX/8
>>
>>
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