[Amps] Air Gap

[Jan Erik Holm]

Use vacum variables both for C1 and C2, 5 Kv units are enough.
In the long run you will not be sorry.

73 good luck / Jim
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Rich wrote:
> I am getting parts together for my first amp. I have 3, 4-1000a tubes
> ,chimneys ,sockets and fil transformers . I plan on a single tube amp
> for my first try , it will be for 15 and 20 meters. The power supply is
> good for 0 to about 5000v. I am building the plate variable cap now ,
> the first try is one with .200 gap between the plate and rotor. This gap
> can be changed with out much problem until I put it together for the
> last time. I was thinking about a .400 gap. I looked for a chart to
> figure the gap required with but did not find one. I will max out at
> about 4500v  but I could run less if needed.
>  
> Rich
> KD0ZZ