3 Aug
2016
3 Aug
'16
1:40 a.m.
we have a heath h11 which is lsi 11 aka pdp 11/03
the drives are not rx o1 or rx o2... but are they and the controller
comparable? with rx01 or an rx02?
Thanks Ed# at smecc
3 Aug
3 Aug
6:51 a.m.
Are you referring to having the H-27 drive from Heath? I don't know for sure because
I've never seen H27 docs, but the disk capacity is the same as the RX01 (256k) and I
think the interface was made deliberately incompatible, likely at the behest of DEC. The
version of RT-11 (called HT-11) supposedly used a different floppy device driver.
Again, this is based solely on what I've read from various places and not direct
experience (I have an H-11 with a SCSI controller; no floppy; and it runs RT-11 no
problem).
Rich
Sent from my iPhone
On Aug 3, 2016, at 1:40 AM, COURYHOUSE at aol.com
wrote:
we have a heath h11 which is lsi 11 aka pdp 11/03
the drives are not rx o1 or rx o2... but are they and the controller
comparable? with rx01 or an rx02?
Thanks Ed# at smecc
4 Aug
4 Aug
3 a.m.
There was some discussion on this on the VCFED forums. Might be worth a
read.
Dave
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Richard
Cini
Sent: 03 August 2016 11:51
To: General Discussion: On-Topic and Off-Topic Posts
<cctalk at classiccmp.org>
Subject: Re: RX02 rx-01 heathkit 8 inch drive for H-11 ( lsi11 heath case
drive
diff?)
Are you referring to having the H-27 drive from Heath? I don't know for
sure
because I've never seen H27 docs, but the disk
capacity is the same as the
RX01 (256k) and I think the interface was made deliberately incompatible,
likely at the behest of DEC. The version of RT-11 (called HT-11)
supposedly
used a different floppy device driver.
Again, this is based solely on what I've read from various places and not
direct experience (I have an H-11 with a SCSI controller; no floppy; and
it runs
RT-11 no problem).
Rich
Sent from my iPhone
> On Aug 3, 2016, at 1:40 AM, COURYHOUSE at aol.com wrote:
>
> we have a heath h11 which is lsi 11 aka pdp 11/03
>
> the drives are not rx o1 or rx o2... but are they and the
> controller comparable? with rx01 or an rx02?
>
> Thanks Ed# at smecc
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days inactive
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COURYHOUSE＠aol.com -
dave.g4ugm＠gmail.com -
rich.cini＠verizon.net