Post Reply 
9114B and HP-41 HP75C
04-29-2020, 06:50 PM
Post: #16
RE: 9114B and HP-41 HP75C
(04-29-2020 05:42 PM)Erik-M Wrote:  Received the batteries today and have the drives working.

Good news!

Quote:One battery didn't charge so I have to return it but at least I could test both.

There's a 5A pico fuse on the PCB inside the battery pack that sometimes blows. It can look like a dead battery.

Quote:Put the content of my 41's on a disk and a bunch of programs.
Found some 1,44MB disks and taped the hole so the drive thinks they are 720k, works fine.

While doing this is fine for a quick check of the drive, be aware that 1.44Mb HD media has different magnetic properties compared to 720k media and it's use is not recommended. It is highly advisable to NOT backup critical data to HD media and find some 720k discs instead.

Dave
Find all posts by this user
Quote this message in a reply
Post Reply 


Messages In This Thread
9114B and HP-41 HP75C - Erik-M - 04-25-2020, 06:38 PM
RE: 9114B and HP-41 HP75C - rprosperi - 04-26-2020, 01:58 AM
RE: 9114B and HP-41 HP75C - Craig Bladow - 04-26-2020, 03:54 AM
RE: 9114B and HP-41 HP75C - rprosperi - 04-26-2020, 01:45 PM
RE: 9114B and HP-41 HP75C - Craig Bladow - 04-27-2020, 03:27 AM
RE: 9114B and HP-41 HP75C - Erik-M - 04-26-2020, 09:06 AM
RE: 9114B and HP-41 HP75C - Erik-M - 04-26-2020, 03:38 PM
RE: 9114B and HP-41 HP75C - Erik-M - 04-26-2020, 06:16 PM
RE: 9114B and HP-41 HP75C - Erik-M - 04-26-2020, 08:11 PM
RE: 9114B and HP-41 HP75C - Erik-M - 04-29-2020, 05:42 PM
RE: 9114B and HP-41 HP75C - Dave Frederickson - 04-29-2020 06:50 PM
RE: 9114B and HP-41 HP75C - Erik-M - 04-30-2020, 11:47 AM



User(s) browsing this thread: 1 Guest(s)