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Auto shut off electricity precise timer

Puddle

Puddle

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GraLab 505 or 525 digital timers can be set up to 59 minutes 59.9 seconds. The 525 is a dual channel and can be set to switch between channels automatically or manually or just to one channel. The 505 is a digital single channel similar to the electro-mechanical 300 timer. I own both plus a 300 and a Time-O-lite P-79 timer. I use the GraLab 300 for my UV exposure units(I have two units).
 
My exposure unit has two sets of UV lights ( I doubled it to shorten the exposure time), so I'd need a timer with two outlets. I guess I can use one for enlarger and another for safelight? My UV is LED, so I don't see the problem?

Plug in 3 lights...

 
Why all this vintage bricks? Has anyone made a timer in the last 50 years? :smile:
 
I use my ancient Gralab for film development because I walk around when processing film in daylight tanks because of its large size and visibility, and a Time-o-light for enlarger’s small size and proximity to enlargers. My G. Was bought in 1960s and still going strong.
 
At 90 seconds you would have to fiddle with the switches for 10s to overexpose 1/6 of a stop, which is barely perceptible. So I wouldn't sweat about it.

It is convenient to be able to start the exposure and walk away though. So that may be a reason to find a timer.
 
Why all this vintage bricks? Has anyone made a timer in the last 50 years? :smile:

Who posted anything about vintage?

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