Used a workbench clamp to hold the clear bulb upright. Shined tungsten hot light through white diffuser behind the buld. Slight crop and straighten, remove a few sensor dust spots, curves adjustment layer, hue/saturation adjustment layer, brightness/contrast layer, add black at the edges, size for web.
Congrats on the 6 and the new PB! The part of this that really makes it for me is the threads meeting the blocks and the echo of the threads in the element in the lower left. Well thought out design!
In response to your interest in others' thoughts on this in the "personal best" thread, the thing that first strikes me here is the amount of space at the top of the frame. Next I'm struck by the cramped composition below. For me, it doesn't make for a well-balanced photograph. Stylistically, it's a very interesting picture, and I think you've done well highlighting the form of your subject and contrasting its attractive transparency with the blocky, firm solidity of the clamp. That's nicely presented. Overall though, the composition is in my opinion what prevents this photograph from being a 6.5 or higher. I also think your post-processing (which I believe is what's responsible for the "banding" in the negative space area at top) is somewhat overdone, though it could be said that it enhances the yellow already in this to present what seems to be an illuminated yet dark bulb. Anyway, overall nicely done, and congratulations on your personal best.