Someone pointed you at my web page. I was flattered, but will mention it again as apparently it did not go out to all.

http://www.kk0sd.net/rotorlight/Yaesu.htm

73 and Enjoy, Gary 'Joe' kk0sd

--- Original message --- Subject: Re: [amsat-bb] G-500A Controller Bulb Replacement From: Stephen E. Belter seb@wintek.com To: Tony dxdx@optonline.net, amsat-bb@amsat.org amsat-bb@amsat.org Date: Sunday, 10/01/2016 7:53 AM

Tony,

I didn¹t see a response to your query, so let me try to help. I¹ve not replaced the bulb in a G-500A, but I have replaced them in a G-5400B which is an Az/El version of the G-500A.

The meter illumination is provided by a 12V incandescent bulb located above the meter face that is soldered to a small circuit board. If you know how to solder, it is a simple replacement.

However, the replacement incandescent bulb can also burn out and requirement replacement.

I¹ve replaced the illumination on my controller with pairs of LEDs, one pair above each meter. You¹ll need to check the schematic for your controller, but from memory, I think the power for the light was 12VDC. Or that there was 12VDC available.

I put two LEDs in series and used something like a 680-ohm current-limiting resistor. The best value for you will depend on the LEDs.

Hope this helps.

73, Steve N9IP

Steve Belter, seb@wintek.com

On 1/8/16, 9:08 PM, "AMSAT-BB on behalf of Tony" <amsat-bb-bounces@amsat.org on behalf of dxdx@optonline.net> wrote:

...

All:

Need to replace the bulb that illuminates the meter on a Yaesu G-500A elevation controller and I was wondering if anyone had done this before. I'm assuming the bulb is located somewhere in the vicinity of the meter, but not seeing it by looking through the meter window.

Thanks...

Tony -K2MO _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb

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Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb