[Amps] SB220 vote

[R.Measures]

>does it matter Rich?   to me the single 3-500Z amps today are junk. 
>(junque for the higher classes)  my data tells me that at 3,000 volts, the 
>max plate current should be 370-400 ma and get 750 watts out of it....how 
>can these amps be linear?????

A healthy 3-500Z has lower IMD than today's crop of transceivers, 
provided that plate/anode current is <420mA.
> 
>STEVEN    W4IIV
>
>"R.Measures" <r at somis.org> wrote:
>*** Vic -- If W8JI designed the SB-1000, then who designed the original 
>Amp Supply AL-80?
>
>>John T. M. Lyles wrote:
>>
>>> To add one more opinion, I also feel that the Heath SB220 is a classic, 
>>> simple yet elegant design, which is timeless. 
>>
>>> My hat is off to the hams at former Heath company for such a piece.
>>
>>I wonder who the designer was? I know W8JI was responsible for the 
>>SB1000 (also a good amp), but I think he did not design the 220.
>>
>>Vic K2VCO
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>
>STEVEN GRANT    W4IIV
>
>
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-  R.L. Measures/Rich..., AG6K, 805.386.3734, www.somis.org