[time-nuts] Chart recorder consumables (was HP 117 paper )
ed_palmer at sasktel.net
Thu Apr 30 17:57:36 UTC 2009
I've thought about buying one of the phase comparators that have a chart
recorder, but I've been concerned about the availability of consumables
(i.e. paper and ink / pens ). Are these things generally available?
Only some models?
I see that the HP 117a uses pressure-sensitive paper. How well does it
age? Would an old roll still be usable even if you found one? Would
old traces fade away?
In a previous life I used Gould / Brush 220 chart recorders that used
very smooth coated paper and liquid blue ink that was always making a
mess. I wouldn't want to get into that again!
Pete Lancashire wrote:
> Does anyone know if the chart paper is still available ?
> This fall/winter I want to play with the 117 I found, that
> is after getting an antenna ... not for serious use but
> would be nice to have at least one roll.
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