[pure-silver] Re: 8x10 condenser enlarger head design

You might try glen, his website is
http://www.glennview.com/

http://www.glennview.com/durst.htm

Jensen also might be a possibility
http://jensen-optical.us/enlselgui.htm

http://jensen-optical.us/lamp2.htm


 Jonathan

-----Original Message-----
From: pure-silver-bounce@xxxxxxxxxxxxx
[mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of John
Sent: Friday, April 24, 2009 12:01 PM
To: pure-silver@xxxxxxxxxxxxx
Subject: [pure-silver] 8x10 condenser enlarger head design

I am new here. I followed Mr. Knoppow to here from usenet. (Hello, Richard!)

I have been rebuilding a Saltzman 8x10" enlarger which is missing a 
light source. The condensers are in good condition, I prefer condenser 
enlargers and I'd like to have an appropriate hot head made. (I am very 
fortunate to know an excellent sheet-metal fabricator who makes custom 
devices for our local composites-material factories.)

I have no clue as to the design of the original tungsten source head. I 
have Focomats (I and II) and their design uses a single frosted bulb and 
a matte-silver reflector.  Is there a single, large-enough bulb to work 
for an 8x10" enlarger? (The condensers are 14" in diameter). I have a 
hot box originally designed to light natural specimens; it uses six 
tungsten bulbs. Would it make more sense to use multiple bulbs?

Can anyone point me to a good source for head designs?


Thank you,
John



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