DEC RK05 Emergency Retract Batteries

Jay West jwest at classiccmp.org
Mon Mar 14 12:39:25 CDT 2016


Paul wrote....
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Interesting that they used a battery; I thought the usual mechanism was a
large capacitor, I hadn't seen batteries used for this.
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It's now foggy memory, but I'm pretty sure HP 7900A (and 7901) were using
batteries for emergency head retract.
The later 7905/7906 - caps.

J




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