>
>> >HF g-g amplifiers are quite unlikely to oscillate below
>> >the grid resonance. For a 3-500Z, this is c. 80MHz.
>>
>>
>> The original comment was about shielding the screen
>> supply...... hardly applicable to 3-500Zs.
>
>It's wrong anyway Peter. As Rich's theories fall apart, he has had
>to "make" tubes oscillate lower and lower in frequency.
>
>3-500Z's tend to oscillate above two meters, ...
In an AL-80 or SB-1000, they oscillate c. 150MHz. . In a SB-220,
110MHz. In the Henry 2k-4, they oscillate c. 95MHz.
end
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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