[GreenKeys] Model 28 copy lights

[Don Robert House]

>I don't remember now where I read it, but someone mentioned fluorescent
>copy lights on a Model 28 and I was going to comment.  So far as I know,
>there were three versions of copylights on Model 28 sets: fluorescent,
>6V incandescent, and 60 volt incandescent.  This last used two bulbs
>in series across the 120 volt line, and was good if the mains power
>supply was DC.  For AC operation, I think fluorescents were original
>on Model 28s as a very modern way of lighting, but were dropped in favor
>of incandescent.  I don't know the reason, but can make some guesses.
>Some Model 28 equipment was used with motor control, so the motors went
>on and off frequently.  Fluorescent lights don't hold up well with
>frequent on and off cycles, and then the small ones take some time to
>turn on.  Another reason is that there is the need for other light bulbs
>in the machine, such as the end-of-line light and sometimes busy line and
>break lights.  These are conveniently operated off a 6 volt transformer
>if you have one, and if you have 6 volt copylights you already have a
>transformer for them.
>
Jim,

I concur with your statements.  We only had one customer with a 
flourescent tube and removed it in favor of the 6 volt lamps after 
the bulb broke and startled the operator.  The vast majority of our 
600 machines were 6 volt lamps.

Don
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Don R. House
4716 Patty Lane, Ringwood, IL 60072
Tel: 815-653-0683
FAX: 815-653-0684
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