[Elecraft] Re: K1 backlight on/off using AGC menu entry

[Sandy, W5TVW]

Many thanks to you, Wayne, and all who responded!  Although I installed
a "two white LED" light mod myself, the backlight is infinitely better!
K1 a great little rig.  Eventually, I will order the T1 to go with my
"HF Packer" amplifier on CW.  Think it will do OK with 25-30 watts on CW
and replace an MFJ coupler I'm using now that is as big or bigger than
the K1!
73,
Sandy W5TVW
----- Original Message ----- 
From: "wayne burdick" <n6kr at elecraft.com>
To: "Sandy, W5TVW" <ebjr at i-55.com>
Cc: "QRP-L" <qrp-l at mailman.qth.net>; "Elecraft Reflector" <elecraft at mailman.qth.net>
Sent: Thursday, September 15, 2005 6:27 PM
Subject: Re: K1 backlight on/off using AGC menu entry


| Sandy, W5TVW wrote:
| 
| > Wayne,
| >     Where is the info on using AGC on/off for turning light on and off?
| > Nothing on my modification sheet about it.  Also nothing on sheet
| > currently at Elecraft website.
| 
| Sorry about that, Sandy. This information was actually in the e-mail I 
| sent announcing the backlight, not in the instruction sheet. Here it 
| is:
| 
| ON/OFF Control
| 
| The backlight draws only 6 to 10 mA, but you can add on/off control if 
| desired. One possibility is to use a switch mounted on the left side 
| panel. However, since most K1 owners never turn off AGC, it may be 
| preferable to use the AGC menu entry to control the backlight. To do 
| this: (1) cut the RF board trace running from pin 8 of J6 to C31; (2) 
| add a jumper on the bottom of the RF board from J6 pin 8 to P1 pin 18; 
| (3) use another jumper to connect the cathode (K) lead of the backlight 
| LED to pin 18 of J1 on the front panel board.
| 
| The AGC menu entry can be assigned to PFn if you don't use this switch 
| for XIT or some other function.
| 
| 73,
| Wayne
| N6KR
| 
| ----
| 
| http://www.elecraft.com
| 
| 
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