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Re: [Amps] Power transformer for 600 watt rig

To: "Barrie Smith" <barrie@centric.net>, "'Amps @Contesting.com'" <amps@contesting.com>
Subject: Re: [Amps] Power transformer for 600 watt rig
From: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Wed, 19 Mar 2008 19:21:53 -0400
List-post: <amps@contesting.com">mailto:amps@contesting.com>
The discussion has always assumed some capacitance to provide ripple 
filtering and some additional voltage regulation.

In a perfect world as usually seen in models, the C can go to infinity and 
there is always an improvement on the way up.

In the real world it usually depends on what level of ripple is acceptable. 
A SSB amp is less critical of ripple than an AM modulator. The voltage 
regulation benefit of more C is limited by the various suppy resistances and 
in my experience is reached at around 16-20 uF with a modern transformer.

Carl
KM1H


----- Original Message ----- 
From: "Barrie Smith" <barrie@centric.net>
To: <garyschafer@comcast.net>; "'jeremy-ca'" <km1h@jeremy.mv.com>; "'Amps 
@Contesting.com'" <amps@contesting.com>
Sent: Wednesday, March 19, 2008 6:20 PM
Subject: Re: [Amps] Power transformer for 600 watt rig


> What if . . . one had a choke (swinging, or otherwise) input AND lots of
> capacitance?
>
> 73, Barrie, W7ALW
>
>
> 

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