>
>Rich says:
>
>>There is undoubtedly no way to build a VHF suppressor that does not have
>>considerable loss at 29MHz.
>
>Another sweeping generalisation!
>
hardly. Successful suppressors typically exhibit hellish heat on 10m
RTTY or FM.
>Because a tube with the plate parasitic resonance BELOW the grid parasitic
>resonance doesn't oscillate,
semi-true. One problem is that the anode-resonance does not stay put
from band to band.
>a plain inductor can clear it up. If I remember
>correctly, wasn't that what Jon Ogden
(groan)
>found with his 4-1000A?
>
>Of course, that's also 1930's technology - it's described in Terman's 'Radio
>Engineering'.
>
>But it isn't the universal panacea for all parasitic problems.
>
>I suspect this thread will be pretty interesting over the weekend. Pity I
don't
>have e-mail at home, and I'm out Monday.
>
Indeed. The kaput 8877s from the AL-1500 that reportedly ate four should
arrive today. The photos from the autopsies might be of interest.
>
cheers, Peter
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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