[Amps] Multi-tube vs Single or Dual-tube amps?

[Roger]

It becomes a lot more complex when you start adding tubes. Power supplies,
in particular HV and Filament require high current capability, tank
circuits become more complex because of the change in load impedance, input
tuning circuits get a bit more complicated plus the need to have the
capability of adjusting bias and monitoring each tube individually. I could
probably go on but I think you get the picture.


73, Roger
AI7RR

On Mon, Jan 19, 2015 at 1:27 PM, qrv at kd4e.com <qrv at kd4e.com> wrote:

> From time to time a multi-tube amp shows up, such designs were
> common with sweep tubes, I think some with 4x150's, and 6146's.
>
> Other than the added sockets and wiring complexity are there
> additional down-sides to such a design?
>
> e.g. Eight 6146's should generate 600w 160-10m and are cheap.
>
> Just pondering ...
>
>
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> *David*
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