[Elecraft] New 30A power supply on Elecraft order form

[Wayne Burdick]

13.8 is fine. I said "about 14" so I wouldn't have to think too hard so early in the morning.

Wayne

On Apr 15, 2015, at 10:03 AM, Michael Gillen <mjgillen at yahoo.com> wrote:

> Hello Wayne,
> 
> Will you be updating page 8 of the Owner's Manual to reflect this change? The OM says 13.8v and nothing about measuring it at the DC jack on key-down. However that sounds like a fun experiment.
> 
> 73,
> Michael
> KK6RWN
> new K3 owner serial 8989
> 
> From: Wayne Burdick <n6kr at elecraft.com>
> To: Edward R Cole <kl7uw at acsalaska.net> 
> Cc: Elecraft at mailman.qth.net 
> Sent: Wednesday, April 15, 2015 8:37 AM
> Subject: Re: [Elecraft] New 30A power supply on Elecraft order form
> 
> 
> On Apr 15, 2015, at 7:48 AM, Edward R Cole <kl7uw at acsalaska.net> wrote:
> 
> > One question is how low voltage can be adjusted.  Amps are designed for 12.0 volts.
> 
> Ed,
> 
> All Elecraft 100-W amplifiers are designed for optimal performance at about 14 V (as measured at the DC jack on key-down). This includes the K3's and K2's internal 100-W amps as well as the KXPA100. They will certainly run from lower voltages -- down to about 10.5 to 11 V -- but for home use, we recommend setting the DC supply to 14.0-14.2 V. They'll run from as high as 15 V, though again, around 14 V optimizes power output, IMD levels, and efficiency.
> 
> 73,
> Wayne
> N6KR
> 
> 
> 
> 
> 
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