[TenTec] Model 963 questions

[Richards]

Greetings.

My Model 963 switching power supply causes me to ask...

1)   	Is it expected that the power-on pilot light will "flicker" orange,
	or should it stay a constant brightness ?    Mine has taken to
	flickering and after awhile one cannot remember if it always
	did that...

2)	My 963 power supply causes a buzzing hash around 850 MHz -
	more noticeable on AM than on LSB or USB.  Not sure if it
	does not at other frequencies yet... I have been cruising the
	ham bands, and it seems to be just a 850 AM, but not sure
	especially about harmonics.

Background -
I rebuilt my shack these past few weeks, and had not noticed these 
issues before.   I use a different, linear type, Astron RS-35M for the 
transceiver and have another one of those on reserve if this  Model 963 
is going bad.  I use the 963 to power up some accessories, a police 
scanner, and a mobile 2 M rig separate from the HF gear.


Any reason to worry ?
Any thing I can try to ameliorate this situation?

Any help is  appreciated  !!

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Happy Trails.
=======================  Richards / K8JHR  =========================