[Elecraft] attenuator in amp was Re: K3 and Expert 1K-FA

[Lew Phelps K6LMP]

think of it as insurance to protect against a short circuit between the headphones....


Lew K6LMP


On Apr 21, 2010, at 2:31 PM, Mel Farrer wrote:

> I agree with Doug but from another prospective.  
          [I assume you meant "perspective"]
> Look at the energy budget for portable work.  Less total "consumed" power is good.
> 
> Mel, K6KBE
> 
> --- On Wed, 4/21/10, Doug Turnbull <turnbull at net1.ie> wrote:
> 
> From: Doug Turnbull <turnbull at net1.ie>
> Subject: Re: [Elecraft] attenuator in amp was Re:  K3 and Expert 1K-FA
> To: "'Doug Faunt N6TQS +1-510-655-8604'" <faunt at panix.com>, d.cutter at ntlworld.com
> Cc: elecraft at mailman.qth.net
> Date: Wednesday, April 21, 2010, 2:08 PM
> 
> 
> Dear OMs,
>     I can not understand why one would want to run the K3 at 100 W rather
> than 20/30/50 Watts.   Why drive the K3 harder when driving it more lightly
> should improve reliability and possibly improve linearity.   The waste of
> energy is also undesirable; the fifty watts out that is discarded probably
> costs 100 Watts of energy.  The idea of adding an attenuator for 50 Watts of
> energy sounds mad to me and environmentally unfriendly as well.
> 
>           73 Doug EI2CN