[Milsurplus] GRC-9 receiver disassembly

[Bill Cromwell]

On 01/30/2014 02:45 AM, Hue Miller wrote:
> Anyone here disassembled GRC-9 receiver, taking the front panel off?
> I am wondering how accessing the lamp socket is done (if in fact it
> can be accomplished. ) I have the crazy wondering how feasible it
> would be to replace with a screw base lamp socket. The 1.5 volt 
> flashlight bulbs deliver substantially more light than the feeble
> TS49 at 1.5 volts.
> The downside would be you'd need an ammo pouch of spare
> flashlight bulbs; I read their rated life was in the low tens of hours.
> -Hue Miller 
> ______________________________________________________________

Hi Hue,

I wonder what a brighter bulb (more current) would do to battery life. 
More current from the same supply suggests a thinner (weaker) filament. 
It also suggests a hotter filament. This is a radio for field use so an 
already short-lived bulb would fail even sooner. Most of us, even those 
of us who might use the radio out in the wild, probably don't worry 
about enemy troops seeing a brighter dial light. I have a BC-1306 
receiver from a field set a generation earlier. I don't want to do 
anything to increase current drain. Along with that ammo box full of 
spare bulbs be sure to include more spare batteries to run them. Or, in 
the end, a few more mA might not be important.

73,

Bill  KU8H