[Amps] This Month's QST Article

[Carl]

The lossless feedback Norton design does that well and beyond, NF on 2M is 
2dB with a 2N5109, and works well below the BCB.
Gain is only 10dB and IMD3 is in the mid 20's.
Ive used them on Beverages and on 10M with the TS-940 and it doesnt overload 
that Ive ever noticed.
I prefer dead bug constructuction over single sided copper PC board, stable 
without hassles of a board layout.

The 2N5109 was developed in the late 70's for broadband CATV line amps and 
Ive been using them for many purposes since then.

Carl
KM1H


----- Original Message ----- 
From: "Vic K2VCO" <k2vco.vic at gmail.com>
To: <amps at contesting.com>
Sent: Thursday, September 27, 2012 12:22 PM
Subject: Re: [Amps] This Month's QST Article


> It is not so easy to make a solid-state amplifier that is stable and has 
> consistent gain from 1.8-30 mHz. One-band VHF (or BC band) amplifiers are 
> simpler.
>
> On 9/26/2012 8:20 AM, Lee Buller wrote:
>>
>> Darn....that seems to be an excellent device .... 27 db gain....75%
>> efficient...and that is at 144 Mhz.  How does that translate to 
>> HF....160 to 10
>> meters?
>>
>>
>> Could this be a tube killer for ham radio manufacturers?  Just thinkin'
>>
>> Lee
>
>
> -- 
> Vic, K2VCO
> Fresno CA
> http://www.qsl.net/k2vco/
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 10.0.1427 / Virus Database: 2441/5298 - Release Date: 09/29/12
>