[shaler78]

I believe that the original light bulbs were frosted with the tip of the bulb silvered on the inside of the glass like a radio tube. That diffused the light somewhat. Those type of bulbs are almost impossible to get new nowadays. In my 39-35 and 40-180, I dipped the very tip of the light bulbs in some semi-translucent white paint, and it does help to diffuse the light. If I remember correctly, the bulbs I used were the same voltage but higher lumens and wattage.