>
>
>>
>> >
>> >Tom Rauch wrote:
>> >
>> >>Rich Measures wrote:
>> >>> ? For c. five years, the ARRL Handbook had the wrong Pi-L tank values -
>> >>> - despite being repeatedly told about the problem. .
>> >>
>> >>Is it easy to explain what is wrong about the values?
>> >>
>> >If we're talking about the same formulae, they were approximations that
>> >assumed a high loaded Q. They were probably good enough for designing
>> >output tank circuits, but gave major errors in Q values for cathode
>> >circuits with deliberately low loaded Qs.
>>
>> ? As I understand it, there was no error in the formulae, Ian.
>> .......
>>
>
>The printed formulae themselves had no errors, but the formulae were
>incomplete and produced different pi net values than the complete formulae
>did.
>........
? As I recall, the Pi-L tank values for C2 originally did not include
the C of the L-section.
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
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