[AMPS] Some tube questions...conversion to H2O cooling

[George T. Daughters]

Bill wrote:

< snip >

>      However, the real bargains are the 4X150A/7034. They sell cheap
> because people don't want 150 watt plate dissipation tubes, but they
> have the same specs and characteristic curves as the 4CX250B.

Many moons ago, an engineer at Eimac in San Carlos told me "if you 
supply enough air to keep their temperature within spec, the 4x150a's 
are good for 250 watts dissipation."  

73,

George T. Daughters, K6GT

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