The 4CX1500A requires 5V at almost 40 amps filament supply!!!!
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
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