[TowerTalk] Yaesu Rotors

[Jim Brown]

On 11/11/2011 8:02 AM, Mike Ryan wrote:
> I hope someone can help here. Has anyone replaced the lamps in the CONTROL
> box that illuminate the meter face?  If so what did you use, where did you
> get the lamps?  I suppose Radio Shack has something that might work..not
> worried about an exact replacement. Just want to light it up as the bulbs
> have gone out.

I encountered that problem a year or two ago -- the bulbs in my Yaesu 
controller burned out after only about six months, clearly a design 
failure.  It looked to be quite difficult to replace them, and also to 
find replacements, so I improvised the installation of a couple of white 
LEDs alongside the right side of the display, poked around the schematic 
to find V+, and connected the LEDs to V+ through suitable dropping 
resistors to limit the current.  Two years later, they're working fine.  
although the original bulbs illuminated the face more uniformly.

73, Jim K9YC