Multiple enlargers on same timer

dabsond · Apr 25, 2020

I have an Omega CT 25 timer currently attached to a Beseler 45MX. I just picked up an Omega B22 to specialize in 35mm enlargements. Do most users spit the timer to operate multiple enlargers or source separate timers for each?

Rick Jones · Apr 25, 2020

I too have a similar arrangement with a Valoy for 35mm and a Omega D2V for larger formats. Got tired of plugging and unplugging enlarger cords into my ET-500 so bought a small project box, three way toggle switch, two female grounded plugs and a very short grounded power cord to connect to the timer. When the toggle switch is in the middle position power is cutoff to both enlargers. By toggling right or left I can power either enlarger with my one timer. When I had a Radio Shack down the street the project parts were easy to source.

dabsond · Apr 25, 2020

Thanks for the info. I was thinking of just hooking both into a three way plug. Each has a switch in it's power cord.

Bill Burk · Apr 25, 2020

I just use one enlarger with an Omega brand ART (Time-o-Lite type) timer.

I have Gra-Lab and another Time-o-Lite that I would use on a second or third enlarger... but the most likely scenario is that I will give or loan out one of the other enlargers.

MattKing · Apr 25, 2020

dabsond said:
Thanks for the info. I was thinking of just hooking both into a three way plug. Each has a switch in it's power cord.

I would be concerned about forgetting and leaving both switches on - both enlargers might together draw a fair bit of current, which might not be good for the timer.

Patrick Robert James · Apr 25, 2020

The Gretag 645 has two channels so you could plug two enlargers into it if you wanted. Or just buy another timer. I have one for each enlarger.

David Brown · Apr 25, 2020

Rick Jones said:
I too have a similar arrangement with a Valoy for 35mm and a Omega D2V for larger formats. Got tired of plugging and unplugging enlarger cords into my ET-500 so bought a small project box, three way toggle switch, two female grounded plugs and a very short grounded power cord to connect to the timer. When the toggle switch is in the middle position power is cutoff to both enlargers. By toggling right or left I can power either enlarger with my one timer. When I had a Radio Shack down the street the project parts were easy to source.

I did a very similar thing since I have two enlargers and only one RHDesigns timer. I didn’t use a toggle with a middle off position, but put a main on/off switch Inline.

jp498 · Apr 25, 2020

I like the Gralab 451 digital timer. I have three of them. Two for enlargers, one for my UV box. Just slowly acquired them when deals popped up.

CMoore · Apr 25, 2020

I have a Foam-Board divider between my two.
For me, it is easier to have two timers.
Then again, i bought them used.
New timers seem to be pretty expensive.?
If i had to pay for two new ones, i might just use one.
It would not be all that hard to do.

Jim Jones · Apr 26, 2020

I powered two enlargers through a cube tap on the timer. The safelight was also powered through the timer.

Multiple enlargers on same timer

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