Jim wrote:
>
> Audio gear - Heath AR-1500A that still runs hours a
> day (although it needs another change-out of pilot
> lamps AGAIN! A set, it turnms out, lasts about 2 1/2
> years in this service cycle with the last bulb left
> standing then out at about the 3 year mark) ...


Hi Jim, we used to fix a lot of audio bulbs,
try replacing them with 3v higher rated bulbs,
ie if driven by 9v (common) use 12v bulbs.
The axial bulbs are more reliable than the radial
type and if they are driven from AC try a series
diode and a cap to make it DC, and rate the bulbs
3v higher again than whatever DC voltage you got.
Most TV repair shops will have a wide range of
dial bulbs in varying voltages and sizes. :o)
-Roman

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