Durst 138S Replacement Bubs

[Graybeard]

Has anyone who uses the 150 watt G40 bulb have any issues with the visible "filament" inside the globe showing up in prints? Do you need to use a piece of diffusion plexi in the filter holder? Thanks, Luis

I only used the G40 bulbs with my Elwood and had no problem at all with the filament being visible. The G40 bulbs that I used had a pretty thick white coating on the glass which seems to mask the filament image quite well.

[Larry Kellogg]

As I wait for my Durst 138 to arrive, sometime after Christmas, I dream of lightbulbs. ;-) I have bought some of the 300W PS30 bulbs but wonder what you people think of these 150W bulbs:

https://www.interlight.biz/light-bul...-LABORATOR-138

which are billed as being a replacement for the Durst 138! Too slow at 150W?

[Liquid Artist]

It doesn't look anything like the bulb in my 138, Larry. However my enlarger is almost 2,000 miles away at this time, so I can't photograph it until the holidays.

[Luis-F-S]

Don't forget to use a blower for the condenser housing with the 300 Watt bulbs.

[Larry Kellogg]

Whoops, where do I find a blower?

[Luis-F-S]

Grainger, & the like. Don't need much cfm, my CLS 301 does not have any info on the fan and it's 220v, but any small blower in the range of say 10-15 cfm should do. Ginette, any ideas?

Maybe something like this:

http://www.grainger.com/product/DAYT...Code=P2IDP2PCP

You'd have to adapt a hose to the flange, and also provide a small foam filter.

[Ginette]

Maybe a Beseler blower will do the job, one actually very low priced 141479971897
This model is for the Beseler DG-1 Dicroic Colorhead , product #Beseler Blower 31285

[Luis-F-S]

Yup, I went ahead and bought, I'll let you know how it works when it arrives. It's nice to have an extra blower for when I use the condenser head. I'll see if the same hose from the CLS 301 will work, if not, off to the Depot. L

[Larry Kellogg]

Shoot, I was asleep at the keyboard! I guess I got to get the Grainger one. Is it overkill? Does this suck or blow air? Where do I put the foam filter?

[Michael Clark]

On my 138 the fan sucks the hot air form the top and cool air comes in thru the bottom vent, most efficient that way.



Mike