----- Original Message -----
From: "Gary Schafer" <garyschafer@comcast.net>
To: "'jeremy-ca'" <km1h@jeremy.mv.com>; "'Amps @Contesting.com'"
<amps@contesting.com>
Sent: Wednesday, March 19, 2008 4:33 PM
Subject: RE: [Amps] Power transformer for 600 watt rig
>
>
>>> Now with good solid state diodes chokes are a
>> > thing of the past in power supplies that need good dynamic regulation.
>>
>>
>> I thought you said a tuned choke was needed for that?
>>
>> A swinging choke and a low value cap can provide virtually identical
>> performance to a fat cap or string. It comes down to a trade off in whats
>> available and at what cost as well as size, weight and longevity.
>>
>
> No I said that if you were going to use a choke that it should be a tuned
> choke. There is no way that you will get good dynamic regulation with a
> regular choke or a swinging choke in an SSB power supply verses a
> capacitor
> only filter.
And you continue to dance to your own drummer and ignore over 70 years of
proven application.
Static regulation may be fine with a choke but not dynamic
> regulation.
That makes absolutely no sense.
>
> Look again at what Jim Tonne posted and look at his spice model and you
> will
> see the large dip as the load is supplied and the ringing.
Models are only as good as the modeler. Ive no interest in reinventing the
wheel and wasting my time on supplies for SS.
> Maybe Jim will post the model of the high voltage supply he is working on.
Id rather see the actual supply results.
Carl
KM1H
>
> 73
> Gary K4FMX
>
>
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