[Amps] toroidal transformers

Carl km1h at jeremy.mv.com
Thu Jun 25 08:58:42 PDT 2009

Its not the efficiency but rather the size. For the same volume you get more 
kva with a toroid.

This outfit has some interesting kits and it might help to ask them if they 
would make a 240V primary.



----- Original Message ----- 
From: "Roy" <royanjoy at ncn.net>
To: <amps at contesting.com>
Sent: Thursday, June 25, 2009 11:18 AM
Subject: Re: [Amps] toroidal transformers

> "...I am wondering what difference in efficiency there would be using the
> Toroidal unit in place of an EI cored transformer voltage doubled such
> as used in the Heathkit SB220 and other moderately rated amplifiers
> Dentron etc.."
> Aren't the original transformers at least 95% efficient? That doesn't 
> leave
> much for you to improve upon, unless the toroid has gain!
> 73,  Roy   K6XK
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