Rich Measures wrote:
>
> No copy of Eimac's supposed letter of approval for a 550mA anode-current
> rating has been published. It seems a bit odd that the Heath SB-1000
> instruction manual makes a similar claim about operation at unreasonably
> high anode-mA. During a conversation c. 1990, Mr. Rauch told me that he
> was the designer of the SB-1000. As I recall, at one time Mr. Rauch was
> a co-owner of Ameritron.
I have an SB-1000. The manual suggests that you tune up this way so that the
tank is
properly tuned for the peak currents that will occur with SSB. For CW, they
state
that plate current should be reduced to 400 ma.
Vic, K2VCO
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