[Amps] Alpha 87a

[Peter Chadwick]

Pappenfus et al write about the length of cable adding to the input tuning such as to make a complete number of electrical half waves back to the plate of the driver tube: the tube acting as a constant current source. under those conditions, the input SWR isn't so important, except when using a solid state driver. I would not be surpised if  the length of coax was chosen with this in mind.

73
Peter G3RZP