If you choose to use incandescent lamps in the garage door opener, choose the "heavy duty vibration resistant" bulbs. These can also be found labeled as "ceiling fan" bulbs. Seems that they have 3 or 4 wires supporting the filament as opposed to only two wires for the standard bulb.

73
Bob, K4TAX

On 1/26/2016 2:48 PM, Craig Smith wrote:
Thanks, Bill.    I have the newer DC motor with Battery Backup Liftmaster, but I’m 
guessing the receivers might be similar.   Interestingly, in the new manual they 
actually recommend CFLs but warn against LED.  Obviously the front end of their 
receiver is not designed to Elecraft standards   ;>)

73  Craig   AC0DS

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