[Heathkit] LED backlight mod on SB200/220 meters

[Carl]

In the SB-220 the 6.3V lamps are only running on 5V. In the SB-200 its 
simple to drop it down for long life.

Carl
KM1H


----- Original Message ----- 
From: "W5RKL" <w5rkl at yahoo.com>
To: "heathkit" <heathkit at mailman.qth.net>; "Johnnie Walker" 
<keepwalking188 at yahoo.com>
Sent: Saturday, January 10, 2009 9:33 AM
Subject: Re: [Heathkit] LED backlight mod on SB200/220 meters


Why not just replace the lamp(s) and be done with it?

73
Mike
W5RKL


--- On Fri, 1/9/09, Johnnie Walker <keepwalking188 at yahoo.com> wrote:

From: Johnnie Walker <keepwalking188 at yahoo.com>
Subject: [Heathkit] LED backlight mod on SB200/220 meters
To: "heathkit" <heathkit at mailman.qth.net>
Date: Friday, January 9, 2009, 9:33 PM

Gentlemen,

I am wondering if anyone has found a clean solution to
providing a
replacement for the incandescent bulb backlight on the
old Heath amps?

I have removed the bulb and suspeneded a few leds
about an inch or so
behind the meter so that they provide a diffused
backlight. While the
look from the outside of the case is fine, it's not a
very elegant solution.

Appreciate comments from anyone with experience or
suggestions.

73/jeff/ac0c