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Re: [Amps] SB-230 Power Question

To: "Paul Decker" <kg7hf@comcast.net>, <amps@contesting.com>
Subject: Re: [Amps] SB-230 Power Question
From: "Fern" <crc@cyberlink.bc.ca>
Date: Tue, 19 Mar 2013 19:16:12 -0600
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Yes there is an attenuator in the input of the SB-230 (actually a swamped grid input) . Also, the output should be very close from 80 m to 10 meters. I've had several of these amps in the past. 73 from Fern VE7GZ

----- Original Message ----- From: "Paul Decker" <kg7hf@comcast.net>
To: <amps@contesting.com>
Sent: Tuesday, March 19, 2013 2:48 PM
Subject: Re: [Amps] SB-230 Power Question



I admit, I don't know anything about the SB-230, but 100W drive seems excessive for an 8875/8874, is there some sort of attenuation for the input?

My 432 MHz amp using a single 8874 tube takes 25 drive to produce 500W out.

Paul,
KG7HF




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