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@rogerhalstead.com>
Subject: Re: [Amps] Alpha vs Henry
Cc: amps@contesting.com
Message-ID: <4D9C14D8.3090502@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>
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