13 Aug
2023
13 Aug
'23
4:26 p.m.
On Sun, Aug 13, 2023, 10:20 AM Nigel Johnson Ham via cctalk <
cctalk(a)classiccmp.org> wrote:
On 2023-08-13 12:18, Warner Losh via cctalk wrote:
The DEC Rainbow did that... insert rx50 disclaimer... I did it with 2
teac
True.. but if you put a pair of teac fd55f drives, suitably jumpered, they
both came on... and could do double sided media...
Though in the dual setup mode, only one of the rx50s would spin up... so
maybe not as true for that reason.
Warner
--
On Sun, Aug 13, 2023, 10:11 AM Chuck Guzis via
cctalk<
cctalk(a)classiccmp.org>
wrote:
> On 8/13/23 08:39, Nigel Johnson Ham via cctalk wrote:
>
>> You've amplified my point, Fred! When I saw the abomination of
>> cross-over selects in the cables in the IBM PC, I knew the need for
>> Field Service Engineers was coming to an end!
>>
>> I don't believe anything on Wikipedia anymore. When I saw them say
that
>> there is no such thing as a legal
definition for a pint of beer in
>> Canada, I got an actual legal definition from the Federal Government,
>> created an account on wikipedia, and put in the correct legal
definition
with a reference to the law. (It's 568.26 ml btw -
make sure you get
that last .26ml :-) )
I week later it had been changed back to the previous text, and I could
not get in to correct it!
You should see the "interesting" cabling for getting three drives on a
PC controller, using only one cable. Several ISA SCSI and ESDI
controllers could accommodate this on their floppy section..
At least one DTC controller allowed for running 4 drives the way Al
Shugart intended--common motor, different drive selects.
drives that both spun on any access
and some early NEC computer I saw at computer land iirc... or maybe the
latter just kept the drives spinning
Warner
--Chuck
>
>
The DEC Rainbow RX50s only have one motor :-)
Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU
Amateur Radio, the origin of the open-source concept!
Skype: TILBURY2591