Lamp-rating for VU-meter (fuse-shaped)

[clintrubber]

Hi,

I found a few 'VU'-meters (Sony 6R-something, 70mm wide) with 'internal' lamp-holder:
one fuse-type bulb per meter, sized 1.25"*0.25".
The meter is upside-down (coil on top, needle travels like a pendulum).

There were no bulbs present anymore, so I'm wondering what lamp-rating is usually used in meters of such size.

So as far as could be said without seeing this meter,
how many Watts would be appropriate to lighten it up ?

I can pick from 1, 2.4 or 3.6 Watts (that's 6V3 @ 0A15, 8V0 @ 0A3 or 12V6 @ 0A3).
They're asking silly prices for such bulbs so it'd be nice to get this right at once. :wink:


Thanks,

Peter

 

[gyraf]

1W seems like quite a lot for meter illumination.. I normally use 12V/40mA - (that is ½W)

Don't go over 1W, as you might damage the meter..?

Jakob E.

 

[clintrubber]

Thanks Jakob, that's good advice. I'll go for the smallest Wattage then and perhaps run it at a lower voltage as well.

Thanks,

Peter