Hp-41C card reader - dead

[BillBee]

Tony is the man.

I have only did the tubing repair and rehabbed a botched repair by someone else who gave up. Malfunction and Card_Error were remedied by the cam adjustment.

You are sure the little white plastic idler is in there too? The wee bugger will fall out and its tough to notice.

From what I have read "o" rings have to be a specific size, same for the tubing.

Other than that I defer to the masters here.
Bill