Fujimoto Lucky Timer 3: Plug

[Dietmar Wolf]

Hello.

I want to add a foot switch to my enlarger timer.

I have a Fujimoto Lucky Timer 3. This timer has two plugs. One is for the enlarger and looks this way I I (i guess U.S. standard) and the other one for a foot switch looks this way - I I like you see in this auction


My question: the footswitch is (too) expensive. Could you help me: what plug this is, so that I can buy a cheaper foot switch and add this kind of plug to it.

Do you think I could simply put in a US switch cable and leave the horizontal - plug empty? Or attach a simple foot switch, cut the plug off and insert the two cables directly and try out what works?

Thank you very much, regards Dietmar

 

[Nicholas Lindan]

Hello.

I want to add a foot switch to my enlarger timer.
auction [standard Beseler footswitch]
My question: the footswitch is (too) expensive.

Agree with you there.

Could you help me: what plug this is

It is called a 'Cinch-Jones' plug. Dead Link Removed You shouldn't have too much trouble finding them in the EU.

I don't know the timer you have, but if it uses a motor it may send 220V to the footswitch. To be safe the footswitch should have a 3-wire cord rated for 120/220 VAC. http://64.143.128.200/treadlt2.shtml model #T-91-SC36 is the sort you are looking for

You will need to open up the timer and find which of the three connections is for ground - when you wire the footswitch to the plug make sure green wires only connect to green wires. The other two wires don't matter and can be either way.

 

[Dietmar Wolf]

Thank you very much for this detailed description. No motor added.

Do you think I could add the plug to the footswitch from your website? Which plug is at this switch?

 

[Nicholas Lindan]

Thank you very much for this detailed description. No motor added.

Do you think I could add the plug to the Darkroom Automation footswitch from your website? Which plug is at this switch?

The Darkroom Automation footswitch comes with a 3.5mm / 1/8" phone plug -the same type of plug found on Walkman headphones. The footswitch is meant for electronic timers which supply 5 volts DC at a few milliamps just to sense that the footswitch has been depressed.

Cinch-Jones plugs are meant for 120/220V at several amps and were common on earlier timers driven by clock-motors. Beseler uses the same plug for it's electronic timers so that Beseler needs to only stock one sort of footswitch - not really a good idea as a switch that has been used at high voltage gets pitting on the contacts that causes it to work badly at low voltage and low current.

I am not familiar with the Lucky timer - does it have a knob that moves as it times out the exposure or is it electronic with LED displays?

 

[Dietmar Wolf]

I just tested the timer. First, no motor, no movement, just three seperate knobs to set the time and if you push the fourth white one, it starts silent, no LED.

I put some cables in the cinch-jones. When I combined first with third, the timer started, when I combined the first with the second I could turn on the light as long as the contact of the wires. Cool.

There were some little triny sparks as I put the cables together, I think that is normal?

So I might have to buy two foot switches, one for timer and the other one for the constant light. I have to think about it.