Hi : I have a Dunco, and it has an on/off switch in the step down transformer, ( the bulb is a 11.5 volts, cool light one) which in my unit goes after the timer. You can have the timer working and the enlarger off. The timer came with the enlarger.
Talking about timers, I build a Heathkit PT-1500 about 17 years ago. This is a multifunction digital timer, with 3 modes of operation: process ( for film or paper), enlarger, and clock. It has a pressure sensitive film for the controls that keeps moisture and chemicals out. It has foot switch connectors for the process and for the enlarger ( your hands are free!). It can be programed to beep and intervals of each sec, every 30 sec, every minute, and at the end. You can also program steps like step one will be 9 minutes 30 seconds, then a second step of one minute , and a final for 15 minutes. You can tie all this steps automatically without the timer to stop or have them cycle each one yourself on, when the preceding gets to zero. I have seen this one on ebay go from 39 dollars up to around 100 dollars, it is rare in ebay. If anyone want more information on this timer just email me. Angel Shel Belinkoff wrote: >I won't say that no enlarger has an on/off switch, but I've owned and >used about 15 enlargers over the years and none have had such a switch. >They've all been turned on/off through the darkroom timer. > >Chris Murray wrote: > >>The enlarger I bought has no on/off switch, >>but I suppose i could use a >>power bar or something as an on/off mechanisim. - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
