The Museum of HP Calculators
HP Forum Archive 05
[ Return to Index | Top of Index ]
|Classic chargers and cords|
Message #1 Posted by John Beckwith on 3 May 2001, 1:43 p.m.
I have had my HP-45 since my days in college (purchased Spring of 1974 I believe). I still use it every day at work. The only problem that I have had over the years, other than batteries, has been with the charger. After several years I seem to develop an intermittent in the cord at the plug where it goes into the charger.
Has this been a common problem or am I just too rough on them? I now have 3 good chargers with bad/intermittent cords. I might consider getting a "bad" charger or two somewhere if possible and changing out the cord(s) but in my experience it is not the charger proper that is the problem but the cord.
|Re: Classic chargers and cords|
Message #2 Posted by Erik Wahlin on 3 May 2001, 2:35 p.m.,
in response to message #1 by John Beckwith
The problem you describe is very common to these chargers.
I have found a way to fix them but please do not hold me liable if anything goes wrong.
Carefully slice the top of the plug off along the ridge line with a utility blade.
I usually slice right above the three wires.
The next step involves cutting out the black rubber over the three holes where the wires connect to the contacts. This is the hardest part. Once you have cleared out the rubber from the wires, you can resolder the wires to the connectors. I then use some epoxy and glue the top back on. If you do a good job, it is hard to tell that the plug was repaired.
Return to Index | Top of Index ]
Go back to the main exhibit hall