RE: RX02 rx-01 heathkit 8 inch drive for H-11 ( lsi11 heath case drive diff?)

[couryhouse]

OK will check when back at real computer 


Sent from my Verizon, Samsung Galaxy smartphone

-------- Original message --------
From: Dave Wade <dave.g4ugm at gmail.com> 
Date: 8/4/16  07:35  (GMT-07:00) 
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?) 

In the DEC area. Sorry in Spain at present and can't get to the Forums.

Dave

> -----Original Message-----
> From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of
> COURYHOUSE at aol.com
> Sent: 04 August 2016 08:27
> To: cctalk at classiccmp.org
> Subject: Re: RX02 rx-01 heathkit 8 inch drive for H-11 ( lsi11 heath case
drive
> diff?)
> 
> link  to    area? or topic? Please?
> 
> 
> In a message dated 8/4/2016 12:00:45 A.M. US Mountain Standard Time,
> dave.g4ugm at gmail.com writes:
> 
> 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
> 
>