[Amps] Tuned input board on SB-220

[R at contesting.com]

On Mar 24, 2006, at 10:59 AM, Roger D Johnson wrote:

> k7rdx wrote:
>> But if you employ the tuner in the driver, the length of coax to the 
>> tube
>> cathode becomes another issue. I am confident the engineers at LDG as 
>> well
>> as those who tested their tuner boards in amps prior to them 
>> releasing the
>> product for sale,have looked at all the angles,,,All I want to report 
>> to
>> this group is the fact the tuner does a great job for me and if it 
>> makes you
>> happy to question it`s operation then so be it...Jim..K7RDX..
>
> I'd be a lot more confident if there were some published figures for 
> IMD
> products using an L network vs a Pi network. We really don't need more
> amplifiers spewing out higher levels intermodulation products.
>
> 73, Roger
>
>
> Remember the USS Liberty (AGTR-5)

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Rich Measures, 805.386.3734, AG6K, www.somis.org