13 Aug
2011
13 Aug
'11
3:32 p.m.
HP have made many, many card readers over the years, for both punched
cards and magnetic cards. Could you tell us what uou ware working on :-)
I give up. The 11'th attempt at repairing that gummy drive wheel resulted in yet
another unround wheel that is unable to smoothly transfer cards.
I just cannot seem to find the exact size of tubing, anything constructed with heatshrink
just is not round.
The clutch operation seems to be OK.
Anyone wants to sell me a few inches of KNOWN WORKING ( i.e. correct size ) tubing ?
If this isa calculator magnetic card reader of the HP65/97/97/41 type, I
find a couple of size 005 O-rings work fine.
If it's an HP9100/9810/9820 magnetic card reader, I use a larger-zize
O-ring, but I also machine a new metal hub to hold it.
-tony