Hi,

I have a problem getting hard contrasty prints with my Durst Laborator 1000.
I have a condenser head and use Agfa multicontrast FB paper with above the
lens filters from Ilford. In recent months I seem not to be getting the
contrast from prints consistent with the higher paper grade filters and am
wondering whether this might be attributable to an old tired bulb.

The bulb in it is a rather large 4 1/2" diameter thing marked "p 3/15 Atlas
110V - 200W". Can anyone confirm my suspicions about the bulb or offer any
other explanation. Also I'd like to replace the bulb and wonder what
suitable modern bulb alternatives would be suitable? Do I need something
that diameter for even illumination (I have the full set of condensers)?

What are my options regarding a cold light solution for this enlarger (on
the cheap preferably)?

Thanks in advance for any advice.
John