[Amps] Alpha vs Henry

[Paul Decker]

I don't know about the HL-1.5k, but the last time I talked with Nobuki Wakabayashi, JA1DJW, he told me that the HL-2.5K uses an unregulated linear supply.  I think I can dig up the transformer specs he sent me if anyone is interested. 









Date: Wed, 06 Apr 2011 03:23:04 -0400 
From: "Roger (sub1)" <sub1 at rogerhalstead.com> 
Subject: Re: [Amps] Alpha vs Henry 
Cc: amps at contesting.com 
Message-ID: <4D9C14D8.3090502 at rogerhalstead.com> 
Content-Type: text/plain; charset=ISO-8859-1; format=flowed 

On 4/6/2011 12:47 AM, Fern wrote: 
> You can eliminate a lot of that weight by using a switching power 
> supply. Fern   VE7GZ 

True, but as we've gone through on here several times, it's not a simple 
matter to build a 2500 to 3000 watt switching power supply with good 
regulation, low ripple, and no noise.  It's done and the little Tokyo 
Hy-Power HL-1.5Kfx and larger amps are good examples. 

73 

Roger (K8RI) 
<snip>