OT Plugging : HP Integral IPC on ebay

Tony Duell ard at p850ug1.demon.co.uk
Sun Nov 16 16:06:54 CST 2008

> I'm repairing/restoring a HP-65 with severe oxidation-damage on the
> cardreader pcb and a lose headwire.
> This head was filled with white siliconkit so I was able to remove it and

That, I think, is the earlier version. I've never tried to dig out the 
sealant to repair one.

> resolder the wire (yellow one). After resoldering,I refilled it with 2k

Which, IIRC, is connected to the other end of the winding that the red 
wire connects to.

> epoxy glue, terminal resistance seems to be allright for both coils and I'm
> now restoring the PCB traces. The head connection explained it self.

If you need any information (pinouts, testpoints, etc), feel free to ask.


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