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| 3 questions regarding Powerbook 540c & Powerbook 145b |
Posted by: Dimitris1980 on 2016-05-29 01:53:14
Good day,
i have a powerbook 540c and i am thinking of buying a powerbook 145b but the guy that sells it does not know if it works because it has not a power supply to test it.
1) Is powerbook 540c's power supply suitable for powerbook 145b?
2) Does powerbook 145b supports 24-bit addressing mode?
3) My powerbook 540c has a problem with the floppy drive. Can i put and use powerbook 145b's floppy drive on the 540c?
Thanks.
Regards
Dimitris from Greece
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Posted by: MikeatOSX on 2016-05-29 02:10:58
1. No. PowerBook 5xx have unique power supplies with 4 pins (2x + and 2x -).
You can easily find PowerBook 1xx power supplies in ebay, waiting for a cheap one.
For US power supplies you can use this adapter:
https://www.amazon.de/dp/B009A9W4WO/ref=cm_sw_r_sms_api_UmRsxb53CJ3WF
3. Many (all?) old PowerBook floppy drives are interchangeable. I swapped a defective PB 145B floppy with a good PB 5300 one.
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Posted by: MikeatOSX on 2016-05-30 15:32:35
3. Many (all?) old PowerBook floppy drives are interchangeable. I swapped a defective PB 145B floppy with a good PB 5300 one. I detected a difference tonight:
PowerBook 180c floppy drive:
Sony MPF22A-01
MFD22A-01
PowerBook 5300 series floppy drive:
Mitsubishi MF355H-497MA
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Posted by: techknight on 2016-05-30 16:42:18
I dont think it matters as long as the pinouts match up on the drive. I have seen 2 or 3 different manufacturers of manual inject desktop drives of Apple's later years.
as far as using a blackbird 5xx power adapter with anything else? Forget it. they are highly proprietary for that specific machine.
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Posted by: MikeatOSX on 2016-05-30 17:13:36
I checked my pictures right now:
Mitsubishi MF355H and Sony MPF22A-01 have their connectors on different sides so I was not able to swap a PB 3500 floppy drive with a PB 180c (Sony) floppy drive.
And to correct my first post:
I've already swapped a PB 5300 floppy drive with a PB 150 (not 145B) AND a PB 1400 floppy drive. These were Mitsubishi MF355H.
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Posted by: techknight on 2016-05-30 17:37:02
Ah the old fashioned engineer: I wanna put a connector on the wrong side thing. Yea.. those suck.
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