I recently purchased an SB800 with an intermittent firing fault. Seeing as the unit would charge the capacitor successfully every time I figured it was probably just the bulb.
I ordered a new replacement bulb from our favourite place, Ebay. It eventually turned up and I've literally just fitted the bulb now.
Good news, the flash fires every time now.
Bad news, for some reason the flash now fires too bright even when it's set to 1/128. Every fire drains the capacitor completely. It's as if it's running at 1/1 power.
Has anyone else ever had a similar problem after replacing the bulb?
Before you all have a go at me, I'm in communication with Nikon spares to get a new genuine bulb ;-)