Restoring HP-65

[albertofenini]

Today we have restored the second card reader.
We had two card readers, one with a magnetic head complete but very dirty and corroded,
the second one with a better PCB but a very damaged head with some cables missing.
We decided than to mix the two.
Below you will find some pictures about the cleaning process.
We basically soap washed with a toothbrush the bakelite with the head.
The result is pretty good, although the bakelite is not as smooth as it should be.
We also lubricated the engine which still has a good worm gear and was not necessary to fix.
Head soldered to the new PCB and o-rings installed.
We cleaned the teflon parts with some soap and reassembled.

More pictures in the next post, since we are not able to attach more than 4 images per post ...

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