hertzdonut
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The thing with the white light bulbs is that they are hooked up in "parallel-series", meaning that two sets of two lights in parallel are connected on series. A very twisted way to ensure same light intensity (current regulation). The weak point in that design is that if one bulb dies, than the parallel brother gets the full current of the other set in series and burns out quickly.....and then the entire chain is dead..... really shitty design.....
In other words: you need to order 4 new light bulbs, and in theory you should match the bulbs that are in parallel, otherwise a different current runs through them and shortening the lifespan even more. I converted everything with warm white leds, 5 of them in series (which includes the dial pointer light) with a 220 ohm resistor, all fed from the VU-meter lighting terminal (hence no longer using the dedicated lighting supply terminal for the dial pointer)
Hi Oilmaster, thanks for that explanation, crystal clear. You gotta wonder sometimes how bad design gets implemented into a system. Cost? Space compromise? Time constraint? (get it to market!!)
Anyway, your LED solution sounds like an excellent one! Assuming the procedure isn't beyond my rookie skill set, and you don't mind, I may have to hit you up for a "how do I..."
Once I get this beast up and running, that is.