[amsat-bb] G-500A Controller Bulb Replacement

[Gary Or Terri Mayfield]

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 at wintek.com>
> To: Tony <dxdx at optonline.net>, amsat-bb at amsat.org <amsat-bb at 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 at wintek.com
>
>
>
>
>
>
> On 1/8/16, 9:08 PM, "AMSAT-BB on behalf of Tony"
> <amsat-bb-bounces at amsat.org on behalf of dxdx at 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
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>
> _______________________________________________
> Sent via AMSAT-BB at 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
>