[AMPS] go figure

[Tom Rauch]

> There is another major jump in components used as capacitors. HF
> amplifiers need a lot of C for blockers to handle 160 meters. 

Most amps have way more than enough C for 160. The largest 
problem is generally current rating on 30 MHz, not C on 160.

I remember visiting K8KAS and looking at his homebrew 3-500 
amp for 160. He had 100 pF in the coupling cap from a 3-500Z, and 
we laughed and teased him. When we replaced it with a 1000 pF, 
nothing changed.

If you calculate the amount of C required to not disturb the anode 
impedance, you be amazed how small it can be compared to what 
everyone uses.


73, Tom W8JI
w8ji@contesting.com

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