[Amps] GG Push-pull Amplifier

[Bill Fuqua]

That was 3 months ago.
One problem with the multi-band tuner is that you have to make sure that 
when you are tuned to one of the lower frequency bands the high frequency 
components are also not producing a resonance at a harmonic. They must be 
staggered. This does not affect an antenna tuner version so much but when 
used  as the output impedance matching and tuning network for an amplifier 
it is very important.  Also, a single ended version is easy to make using 
half the parts.

73
Bill wa4lav

At 10:15 AM 3/23/2007 +0100, you wrote:
>Hsu wrote:
>
>>I'm very very interested in that "All band turner", I want to know the 
>>datail.
>
>>>  This is the 
>>> diagram.http://www.cnham.net/bbs/attachments/21_pMmRpMPg6BQE.jpg,
>
>This multiband circuit was popular in some equipment. Basically, there is 
>a parallel LC circuit with a serie LC in parallel to it.
>
>This same basic circuit is used in the Z-match. Have a look using your 
>prefered search engine in order to see more references.
>
>73 de Claude