>[Encoded using ?binary?]
>
>I have been wondering about the possibilities of improving the
>efficiency of the SB220 in cw mode. Looking at the AL-82 I see
>they use two zeners in series and short one out to deal with the
>necessary different bias. The two 220's I have have had the
>zeners replaced with diode strings. Any other ideas how to
>accomplish this?
? The ZSAC with a SB-220 is already ok in the CW mode since the anode
current decreases with lower anode V. Decreasing ZSAC further would
result in increased input SWR. Even if RF-out were increased 40%, no one
could see the difference since it takes a 400% increase in P to give a
one S-unit increase on the Rx end.
>
>cheers, Paul - VA7NT ex VE7CQK - email: paule@sfu.ca
>"Those who hear not the music. . . think the dancers mad."
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>
- R. L. Measures, a.k.a. Rich..., 805.386.3734, AG6K,
www.vcnet.com/measures.
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