Archived posting to the Leica Users Group, 2001/01/08

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Subject: Re: [Leica] Enlarger timer
From: "Ken Iisaka" <ken@iisaka.org>
Date: Mon, 8 Jan 2001 19:43:37 -0800
References: <B67FD099.3FD8%howard.390@osu.edu>

>
> I want the world's simplest enlarger timer.  It would have four buttons:
>
>   * one push-button, marked "+10"
>   * one push-button, marked "+1"
>   * one toggle switch, marked "focus -- expose"
>   * one push-button, marked "start-stop"
>
> Pressing the "+10" would increment the time by 10s, max 90s.  Pressing the
> "+1" would increment the time by 1s, max 9s.  Toggling the switch to
"focus"
> the enlarger light would be switched on for focussing, while at the
"expose"
> setting it would be controlled by the timer.  Finally, the "start-stop"
> button would start and stop the timer (switching the enlarger on and off
as
> it does).  If the timer was allowed to run it's course, it would
> automatically stop at zero and shut off the enlarger.

My LPL timer is just as simple.  It has two dials, one going 10, 20, 30.../
0.2, 0.4, 0.6, 0.8, and the other going 1, 2, 3...10.  You set the two dials
to represent the time.  There is also a switch that multiplies the number by
10.  Then, there is a toggle switch "focus/time" and a push button that
starts the timer.

I don't know who markets it in the U.S., but probaby Saunders which imports
LPL enlargers.

In reply to: Message from Martin Howard <howard.390@osu.edu> ([Leica] Enlarger timer)