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Re: [Amps] {Collins} 30S-1

To: kingwood <>, bill price <>, Amp Reflector <>
Subject: Re: [Amps] {Collins} 30S-1
From: Bill Fuqua <>
Date: Wed, 21 Oct 2009 10:57:29 -0400
List-post: <">>
The 4CX1500A  requires 5V at almost 40 amps filament supply!!!!

Bill wa4lav

At 08:48 AM 10/21/2009 -0400, kingwood wrote:
>         The "1000" refers to the 4CX1000A tube and the "1500" refers to 
> the 4CX1,500B.  Do not mix up the 4CX1,500A with this bunch.  It is a 
> very different tube, with a very different base, and requires a special, 
> very different, socket.
>           Either the 4CX1,000A or the 4CX1,500B will work fine in the 
> 30S-1.  I suggest the 1500B because of its extra grid dissipation, and, 
> usually, it is much less expensive to buy.  The extra plate dissipation 
> is really meaningless because the design of the amp makes it virtually 
> impossible, with normally available driving power, to produce enough 
> power to be concerned about plate dissipation.  Think about it.
>73 de Lon, K5JV
>1110 Golden Bear Ln.
>Kingwood, TX 77339
>281-358-4234 FAX
>281-795-1335 CELL
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