WTB: HP-85 16k RAM Module and HPIB Floppy Drive

COURYHOUSE at aol.com COURYHOUSE at aol.com
Thu Nov 16 02:32:41 CST 2017

PRM-85 ?  cost?
If  I end up getting   fascinated  with the   *%  I  may  want to  get one  
First, I need to get it out and open and see what is all with it..
In a message dated 11/15/2017 5:45:42 P.M. US Mountain Standard Time,  
cctalk at classiccmp.org writes:

It'd be  interesting to find out how well that PRM-85 works. I've laid out a
board  for a rough equivalent but I haven't fabbed it out. It may be cheaper
for  me to buy that instead.

I've also got a 9122C but I don't have the mass  storage ROM so I can't use
it with my 85. Right now I'm using it with my  9000 series 300.

On Tue, Nov 14, 2017 at 8:26 PM, Mark J. Blair via  cctalk <
cctalk at classiccmp.org> wrote:

>  > On Nov 14, 2017, at 20:11, Ed Sharpe via cctalk  
<cctalk at classiccmp.org>
> wrote:
> >
> >  wondervifcthec9122 drives,will work on 85?
> >
> I  think I can guess what you meant to say there... :)
> I’ve  ordered a PRM-85 (a modern reprogrammable ROM drawer replacement)
>  which includes the HP-85B version of the Mass Storage ROM, and the  
> Mass Storage ROM. Based on what I have read, I think that  should let my A
> model use the newer 9122C drive, and other drives  using either the Amigo 
> SS-80 protocols.
> I’d like to  get the 9122C mostly because I have a much easier time 
> 1.44M  media than the older double density media. eBay and I don’t talk, 
>  that limits my options a bit. If I had easy access to lots of 3.5” DD
>  media, then I would consider getting one of the more plentiful (?)  other
> 3.5” HPIB floppy  drives.

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