Tim Stapp wrote:
Amazing, I also have a CB-7. Fantastic enlarger that I paid the pricey sum of $20 for. In the last three years I have outfitted my entire darkroom for less than $500 with two 23C IIs (one is equipped with a new/in the box color head), the CB-7, a Jobo, trays, timers for each enlarger (I actually have 6, but use only 3 enlargers-one for each format that I shoot).
My CB-7 I paid $100 for it and was in relatively bad shape but included a color head which I do need as I only do color work. I rebuilt the thing to perfect condition. Modify the timer circuit to a 24V system and I can start the Gralab 900 timer from the enlarger baseboard. The color head has 2 200W bulbs and 2 separate sets of filters and it's bright. I added a color measuring system to measure the color and intensity of the light via a fiber optic cable inserted into the lamp house. It would function similar to that of the 45 computerized color head with LED display for filtration. It works very well but when I moved to the new house my wife no longer allows me to set up the darkrom so I sold it on Craigslist.