HP-35 display Message #1 Posted by Robert Hollyer on 22 June 2005, 9:51 p.m.
I have a version 2 HP-35 that is in nice condition. However, unlike other classic HP calculators that I have owned, the circuit traces and pins of the LED driver ICs are visible through the plastic LED display cover. This seems odd since I assume that normally some type of black plastic overlay would have been present to block the view of the LED driver pins and traces. Before I cobble a fix together, I am curious if anyone has information regarding whether other HP-35 calculators were produced with driver pins that were visible through the display? What are the dimensions or details of the material that normally blocks the view of the driver ICs?
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