[Amps] Amps with high swr question

[donroden at hiwaay.net]

I am suggesting    IN ADDITION  to the factory input circuits which.  
HOPEFULLY  offers the needed effect

Don W4DNR
Quoting Roger D Johnson <n1rj at roadrunner.com>:

> Impedance matching is only one of the functions a tuned input  
> circuit on the input of a GG
> linear amplifier performs. The other is the "flywheel effect" that  
> smooths out impedance
> variations that occur during the RF drive cycle. Most autotuners are  
> L networks and do not
> provide the Q necessary for this function.
>
> 73, Roger
>
>
> On 1/15/2015 6:46 AM, Paul Christensen wrote:
>>> "If someone has an amp that has high input vswr, why not break the path
>> between the amp relay and the input to the tube and insert a 200 watt
>> auto tuner?   Between the relay and tube ... not in the receive path.
>> On the surface, this sounds like a relatively inexpensive way to
>> retain an otherwise good performing amp.   What did I miss ?"
>>
>> Several homebrew amp builders have done just that.   One that comes  
>> to mind is
>> the 3CX1500D7 amp made by K8RA (SK).   He installed an LDG auto tuner after
>> the RF input relay.   You can see the tuner board mounted inside the bottom
>> corner of his amp.  Scroll down to page 7.
>>
>> http://www.ldgelectronics.com/assets/discontinued_manuals/AT-100AMP%20Manual.pdf
>>
>> Paul, W9AC
>>
>>
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