Search
Member List
Calendar
Help
|
HP-67 Charge Issues
|
|
05-22-2022, 04:31 PM
Post: #2
|
|||
|
|||
|
RE: HP-67 Charge Issues
Hello!
(05-21-2022 07:36 PM)dcs Wrote: Does this behaviour sound familiar to any experienced HP-67 users? That's a common problem with all kinds of "ancient" electronics: Dried out electrolytic capacitors, especially in the power supply. With a bad capacitor, instead of smooth direct current, the calculator will receive rectified alternating current that oscillates between 0 and 10V (or so) either 50 or 60 times per second depending on where you live. The capacitors are fairly easy to replace provided you have a soldering iron. Regards Max |
|||
|
|
« Next Oldest | Next Newest »
|
| Messages In This Thread |
|
HP-67 Charge Issues - dcs - 05-21-2022, 07:36 PM
RE: HP-67 Charge Issues - Maximilian Hohmann - 05-22-2022 04:31 PM
RE: HP-67 Charge Issues - dcs - 05-23-2022, 06:02 PM
RE: HP-67 Charge Issues - GreyUser - 05-23-2022, 02:10 AM
RE: HP-67 Charge Issues - teenix - 05-23-2022, 03:38 AM
RE: HP-67 Charge Issues - dcs - 05-23-2022, 06:13 PM
RE: HP-67 Charge Issues - dcs - 05-23-2022, 06:18 PM
|
User(s) browsing this thread: 1 Guest(s)