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

[Paul Berger via cctalk]

I just checked my 9122C I happen to have open and the interval between 
index pulses is 199.66mS  which would be 300 RPM, which is good news for 
me I can now proceed with adapting a more common 1.44 drive to replace 
my broken one.


Paul.


On 2017-11-17 1:04 PM, Eric Schlaepfer via cctalk wrote:

Check your email. How can you tell if it uses a 600 RPM mechanism or not?

On Thu, Nov 16, 2017 at 3:17 AM, Eric Smith  wrote:


Hi Eric,

It's not urgent, but when you have a chance, could you dump the 9122C
ROM(s) and take high resolution photos of the controller board?

Since it does HD, I suspect it probably does not use a 600 RPM mechanism.

Thanks!

Best regards,
Eric


On Nov 15, 2017 17:45, "Eric Schlaepfer via cctalk" 
wrote:


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@classiccmp.org> wrote:




On Nov 14, 2017, at 20:11, Ed Sharpe via cctalk <

cctalk@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

Extended

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 or

SS-80 protocols.

I’d like to get the 9122C mostly because I have a much easier time

finding

1.44M media than the older double density media. eBay and I don’t talk,

so

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.

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

[Eric Schlaepfer via cctalk]

Check your email. How can you tell if it uses a 600 RPM mechanism or not?

On Thu, Nov 16, 2017 at 3:17 AM, Eric Smith  wrote:

> Hi Eric,
>
> It's not urgent, but when you have a chance, could you dump the 9122C
> ROM(s) and take high resolution photos of the controller board?
>
> Since it does HD, I suspect it probably does not use a 600 RPM mechanism.
>
> Thanks!
>
> Best regards,
> Eric
>
>
> On Nov 15, 2017 17:45, "Eric Schlaepfer via cctalk" 
> wrote:
>
>> 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@classiccmp.org> wrote:
>>
>> >
>> >
>> > > On Nov 14, 2017, at 20:11, Ed Sharpe via cctalk <
>> cctalk@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
>> Extended
>> > 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 or
>> > SS-80 protocols.
>> >
>> > I’d like to get the 9122C mostly because I have a much easier time
>> finding
>> > 1.44M media than the older double density media. eBay and I don’t talk,
>> so
>> > 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.
>> >
>>
>

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

[Eric Schlaepfer via cctalk]

Yep, I've been meaning to do that for a while.

On Nov 16, 2017 3:17 AM, "Eric Smith"  wrote:

> Hi Eric,
>
> It's not urgent, but when you have a chance, could you dump the 9122C
> ROM(s) and take high resolution photos of the controller board?
>
> Since it does HD, I suspect it probably does not use a 600 RPM mechanism.
>
> Thanks!
>
> Best regards,
> Eric
>
>
> On Nov 15, 2017 17:45, "Eric Schlaepfer via cctalk" 
> wrote:
>
>> 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@classiccmp.org> wrote:
>>
>> >
>> >
>> > > On Nov 14, 2017, at 20:11, Ed Sharpe via cctalk <
>> cctalk@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
>> Extended
>> > 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 or
>> > SS-80 protocols.
>> >
>> > I’d like to get the 9122C mostly because I have a much easier time
>> finding
>> > 1.44M media than the older double density media. eBay and I don’t talk,
>> so
>> > 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.
>> >
>>
>

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

[Paul Berger via cctalk]

On 2017-11-16 1:45 AM, Mark J. Blair via cctalk wrote:

On Nov 15, 2017, at 8:27 PM, Curious Marc  wrote:


I think that the upgraded B model ROMs in the PRM-85 are supposed to let it use 
the newer drives.

Yes it does. I have an HP 85A, the PRM 85 and a 9122, and that combo works 
beautifully. I am not sure I ever tried it with high density diskettes though. 
I could check that if you want.


Thanks for confirming that, Marc. I just picked up my PRM-85 board today, and it 
looks like I should be able to purchase a couple of different models of HPIB 
3.5" floppy drives from other collectors soonish.

Has anybody gotten around to sharing CAD models for a 3D-printable PRM-85 case 
yet, or shall I get to work on that task?

I used the combination of B model ROMs to support SS/80 with a 9122C and 
it works fine.


Paul.

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

[Eric Smith via cctalk]

Hi Eric,

It's not urgent, but when you have a chance, could you dump the 9122C
ROM(s) and take high resolution photos of the controller board?

Since it does HD, I suspect it probably does not use a 600 RPM mechanism.

Thanks!

Best regards,
Eric


On Nov 15, 2017 17:45, "Eric Schlaepfer via cctalk" 
wrote:

> 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@classiccmp.org> wrote:
>
> >
> >
> > > On Nov 14, 2017, at 20:11, Ed Sharpe via cctalk  >
> > 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
> Extended
> > 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
> or
> > SS-80 protocols.
> >
> > I’d like to get the 9122C mostly because I have a much easier time
> finding
> > 1.44M media than the older double density media. eBay and I don’t talk,
> so
> > 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.
> >
>

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

[Ed via cctalk]

PRM-85 ?  cost?
 
If  I end up getting   fascinated  with the   *%  I  may  want to  get one  
too..
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@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@classiccmp.org> wrote:

>
>
>  > On Nov 14, 2017, at 20:11, Ed Sharpe via cctalk  

> 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  
Extended
> 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 
or
> SS-80 protocols.
>
> I’d like to  get the 9122C mostly because I have a much easier time 
finding
> 1.44M  media than the older double density media. eBay and I don’t talk, 
so
>  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.
>

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

[Mark J. Blair via cctalk]

> On Nov 15, 2017, at 8:27 PM, Curious Marc  wrote:
> 
>> I think that the upgraded B model ROMs in the PRM-85 are supposed to let it 
>> use the newer drives. 
> Yes it does. I have an HP 85A, the PRM 85 and a 9122, and that combo works 
> beautifully. I am not sure I ever tried it with high density diskettes 
> though. I could check that if you want.


Thanks for confirming that, Marc. I just picked up my PRM-85 board today, and 
it looks like I should be able to purchase a couple of different models of HPIB 
3.5" floppy drives from other collectors soonish.

Has anybody gotten around to sharing CAD models for a 3D-printable PRM-85 case 
yet, or shall I get to work on that task?

-- 
Mark J. Blair, NF6X 
http://www.nf6x.net/

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

[Curious Marc via cctalk]

> I think that the upgraded B model ROMs in the PRM-85 are supposed to let it 
> use the newer drives. 
Yes it does. I have an HP 85A, the PRM 85 and a 9122, and that combo works 
beautifully. I am not sure I ever tried it with high density diskettes though. 
I could check that if you want.
Marc

On Nov 14, 2017, at 9:40 PM, Mark J. Blair via cctalk  
wrote:



> On Nov 14, 2017, at 20:33, Ed Sharpe via cctalk  wrote:
> 
> ok back in my day.. I do not think 85 adressed modern drive of 1.44 meg..? so 
> that was what I was going on.. yes if you can use 1.44 do so.. older new 
> media hard to find... 

I am still new to this HP-85 stuff, but I think you are correct about the A 
model system not originally handling the 1.44M drive. I think that the upgraded 
B model ROMs in the PRM-85 are supposed to let it use the newer drives. 

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

[Mark J. Blair via cctalk]

> On Nov 15, 2017, at 4:45 PM, Eric Schlaepfer  wrote:
> 
> 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.


I've just received my PRM-85, and it looks like I have leads on a couple of 
different floppy drives now. I'll be happy to share my experiences.


-- 
Mark J. Blair, NF6X 
http://www.nf6x.net/

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

[Eric Schlaepfer via cctalk]

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@classiccmp.org> wrote:

>
>
> > On Nov 14, 2017, at 20:11, Ed Sharpe via cctalk 
> 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 Extended
> 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 or
> SS-80 protocols.
>
> I’d like to get the 9122C mostly because I have a much easier time finding
> 1.44M media than the older double density media. eBay and I don’t talk, so
> 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.
>

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

[Mark J. Blair via cctalk]

> On Nov 15, 2017, at 09:33, Paul Berger via cctalk  
> wrote:
> 
> 720K media is pretty easy to get as well, I bought 100 "used" disks from 
> floppydisk.com, and it is hard to tell they have ever been used and I have 
> not had any problems with them.  I also bought a lot on eBay that where 
> previously used on an Amiga that majority of them where OK and the where a 
> mix of single and double sided media.

That's good to know. I'll check them out. That should open up my options, as 
well as giving me a way to get more media for machines like my Amigas and early 
Macs.


-- 
Mark J. Blair, NF6X 
http://www.nf6x.net/

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

[Paul Berger via cctalk]

720K media is pretty easy to get as well, I bought 100 "used" disks from 
floppydisk.com, and it is hard to tell they have ever been used and I 
have not had any problems with them.  I also bought a lot on eBay that 
where previously used on an Amiga that majority of them where OK and the 
where a mix of single and double sided media.


Paul.


On 2017-11-15 12:26 AM, Mark J. Blair via cctalk wrote:



On Nov 14, 2017, at 20:11, Ed Sharpe via cctalk  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 Extended 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 or SS-80 
protocols.

I’d like to get the 9122C mostly because I have a much easier time finding 
1.44M media than the older double density media. eBay and I don’t talk, so 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.

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

[Paul Berger via cctalk]

On 2017-11-15 12:40 AM, Mark J. Blair via cctalk wrote:

On Nov 14, 2017, at 20:33, Ed Sharpe via cctalk  wrote:

ok back in my day.. I do not think 85 adressed modern drive of 1.44 meg..? so 
that was what I was going on.. yes if you can use 1.44 do so.. older new media 
hard to find...

I am still new to this HP-85 stuff, but I think you are correct about the A 
model system not originally handling the 1.44M drive. I think that the upgraded 
B model ROMs in the PRM-85 are supposed to let it use the newer drives.



With something like a PRM-85 and the 85B mass storage, E disk and 
extended mass Storage you can support SS80 devices such as the 9122C.  I 
believe that the gentleman that created the PRM-80 distributes a 
configuration for this exact purpose.  When I had an 85A I created my 
own card for these ROMs and others and made my design available.


Paul.

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

[william degnan via cctalk]

FYI - I checked related to the HP 85 IEEE port I have an Microcomputer
Systems Corporation MSE 9800 and an HP 9122S
b

On Wed, Nov 15, 2017 at 11:31 AM, Mark J. Blair via cctalk <
cctalk@classiccmp.org> wrote:

>
> > On Nov 15, 2017, at 01:31, Christian Corti via cctalk <
> cctalk@classiccmp.org> wrote:
> >
> > No, the 9122C has two high-density, two-sided 80 cylinder drives. A
> drive has no capacity, this is the function of the on-disk format.
> > ;-)
>
> Ah! That's technically correct, which is, of course, the best kind of
> correct.
>
> Well, if we're being pedantic, then we might also refer to the drives by
> their unformatted capacity, as HP themselves sometimes did:
>
> https://pbs.twimg.com/media/DOr81HpVQAAn-X5.jpg
>
> That makes them 2-Mbyte drives. ;-)
>
> --
> Mark J. Blair, NF6X 
> http://www.nf6x.net/
>
>

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

[Mark J. Blair via cctalk]

> On Nov 15, 2017, at 01:31, Christian Corti via cctalk  
> wrote:
> 
> No, the 9122C has two high-density, two-sided 80 cylinder drives. A drive has 
> no capacity, this is the function of the on-disk format.
> ;-)

Ah! That's technically correct, which is, of course, the best kind of correct.

Well, if we're being pedantic, then we might also refer to the drives by their 
unformatted capacity, as HP themselves sometimes did:

https://pbs.twimg.com/media/DOr81HpVQAAn-X5.jpg

That makes them 2-Mbyte drives. ;-)

-- 
Mark J. Blair, NF6X 
http://www.nf6x.net/

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

[Christian Corti via cctalk]

On Tue, 14 Nov 2017, Mark J. Blair via cctalk wrote:

No, the 9122C model has two 1.44M drives. HP made several earlier 3.5"


No, the 9122C has two high-density, two-sided 80 cylinder drives. A drive 
has no capacity, this is the function of the on-disk format.

;-)

Christian

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

[Mark J. Blair via cctalk]

> On Nov 14, 2017, at 10:57 PM, Ed Sharpe via cctalk  
> wrote:
> 
> you have me real curious,as to what is in that padded hp case..


What are you referring to?


-- 
Mark J. Blair, NF6X 
http://www.nf6x.net/

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

[Ed Sharpe via cctalk]

you have me real curious,as to what is in that padded hp case..

Sent from AOL Mobile Mail

On Tuesday, November 14, 2017 Mark J. Blair via cctalk  
wrote:


> 

On Nov 14, 2017, at 20:44, Ed Sharpe via cctalk  wrote:
> 
> remember too.. there were hpib 8 inch and 5 inch drives wish I had saved 
> some!!!

Those would certainly interest me if I happen upon any at a price that I like. 
Same goes for an HPIB 9 track tape drive. But since the HP Series 80 stuff lies 
more towards the fringes of my interests at this time, I have a hunch that I am 
not too likely to find one of those at a price I would like to pay any time 
soon. Naturally, I’m more prone to pay real money for things closer to my core 
interests. But if I do happen upon any of that sort of gear at the right time, 
place, and price, then that will be really cool. Sometimes I surprise myself. I 
never expected to be interested in the DG Nova until I stumbled over a chance 
to buy one along with a PDP-11/03 system that interested me more at the time. 
Now I am glad that I have that cool Nova system, even though I still haven’t 
managed to get it talking to its hard drive. 

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

[Ed Sharpe via cctalk]

yeah I need a,hpib 7970e for our hp 3000 37.. I have back up tapes of the 
killer 100 board bbs system w/ chat, email, vote and poll and nay me 
features. I found a printout if source too  but no way gonna,try to reenter 
it...  somewhere I have the earlier hp 2000 version of this bbs system but as 
in remember tapes not as well stored..

Sent from AOL Mobile Mail

On Tuesday, November 14, 2017 Mark J. Blair via cctalk  
wrote:


> 

On Nov 14, 2017, at 20:44, Ed Sharpe via cctalk  wrote:
> 
> remember too.. there were hpib 8 inch and 5 inch drives wish I had saved 
> some!!!

Those would certainly interest me if I happen upon any at a price that I like. 
Same goes for an HPIB 9 track tape drive. But since the HP Series 80 stuff lies 
more towards the fringes of my interests at this time, I have a hunch that I am 
not too likely to find one of those at a price I would like to pay any time 
soon. Naturally, I’m more prone to pay real money for things closer to my core 
interests. But if I do happen upon any of that sort of gear at the right time, 
place, and price, then that will be really cool. Sometimes I surprise myself. I 
never expected to be interested in the DG Nova until I stumbled over a chance 
to buy one along with a PDP-11/03 system that interested me more at the time. 
Now I am glad that I have that cool Nova system, even though I still haven’t 
managed to get it talking to its hard drive. 

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

[Mark J. Blair via cctalk]

> On Nov 14, 2017, at 20:44, Ed Sharpe via cctalk  wrote:
> 
> remember too.. there were hpib 8 inch and 5 inch drives wish I had saved 
> some!!!

Those would certainly interest me if I happen upon any at a price that I like. 
Same goes for an HPIB 9 track tape drive. But since the HP Series 80 stuff lies 
more towards the fringes of my interests at this time, I have a hunch that I am 
not too likely to find one of those at a price I would like to pay any time 
soon. Naturally, I’m more prone to pay real money for things closer to my core 
interests. But if I do happen upon any of that sort of gear at the right time, 
place, and price, then that will be really cool. Sometimes I surprise myself. I 
never expected to be interested in the DG Nova until I stumbled over a chance 
to buy one along with a PDP-11/03 system that interested me more at the time. 
Now I am glad that I have that cool Nova system, even though I still haven’t 
managed to get it talking to its hard drive. 

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

[Ed Sharpe via cctalk]

our computer company in az... computer exchange inc helped gemilogical inst. of 
America dispose of  their hp 86 and 87 computers...  wish I had saved one of 
each..

we have a hp 85 in a padded tote case at smecc museum here.. we need to fire it 
up.

one thing I would like to find us a rack mount 85... always wanted one. 
back in the old days.

Sent from AOL Mobile Mail

On Tuesday, November 14, 2017 Mark J. Blair via cctalk  
wrote:


> 

On Nov 14, 2017, at 20:33, Ed Sharpe via cctalk  wrote:
> 
> ok back in my day.. I do not think 85 adressed modern drive of 1.44 meg..? so 
> that was what I was going on.. yes if you can use 1.44 do so.. older new 
> media hard to find... 

I am still new to this HP-85 stuff, but I think you are correct about the A 
model system not originally handling the 1.44M drive. I think that the upgraded 
B model ROMs in the PRM-85 are supposed to let it use the newer drives. 

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

[Ed Sharpe via cctalk]

remember too.. there were hpib 8 inch and 5 inch drives wish I had saved 
some!!!

Sent from AOL Mobile Mail

On Tuesday, November 14, 2017 Mark J. Blair via cctalk  
wrote:


> 

On Nov 14, 2017, at 20:33, Ed Sharpe via cctalk  wrote:
> 
> ok back in my day.. I do not think 85 adressed modern drive of 1.44 meg..? so 
> that was what I was going on.. yes if you can use 1.44 do so.. older new 
> media hard to find... 

I am still new to this HP-85 stuff, but I think you are correct about the A 
model system not originally handling the 1.44M drive. I think that the upgraded 
B model ROMs in the PRM-85 are supposed to let it use the newer drives. 

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

[Mark J. Blair via cctalk]

> On Nov 14, 2017, at 20:33, Ed Sharpe via cctalk  wrote:
> 
> ok back in my day.. I do not think 85 adressed modern drive of 1.44 meg..? so 
> that was what I was going on.. yes if you can use 1.44 do so.. older new 
> media hard to find... 

I am still new to this HP-85 stuff, but I think you are correct about the A 
model system not originally handling the 1.44M drive. I think that the upgraded 
B model ROMs in the PRM-85 are supposed to let it use the newer drives. 

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

[Ed Sharpe via cctalk]

ok back in my day.. I do not think 85 adressed modern drive of 1.44 meg..? so 
that was what I was going on.. yes if you can use 1.44 do so.. older new media 
hard to find... 

Sent from AOL Mobile Mail

On Tuesday, November 14, 2017 Mark J. Blair via cctalk  
wrote:


> 

On Nov 14, 2017, at 20:11, Ed Sharpe via cctalk  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 Extended 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 or SS-80 
protocols.

I’d like to get the 9122C mostly because I have a much easier time finding 
1.44M media than the older double density media. eBay and I don’t talk, so 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. 

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

[Mark J. Blair via cctalk]

> On Nov 14, 2017, at 20:11, Ed Sharpe via cctalk  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 Extended 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 or SS-80 
protocols.

I’d like to get the 9122C mostly because I have a much easier time finding 
1.44M media than the older double density media. eBay and I don’t talk, so 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. 

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

[Ed Sharpe via cctalk]

wondervifcthec9122 drives,will work on 85?

Sent from AOL Mobile Mail

On Tuesday, November 14, 2017 Mark J. Blair via cctalk  
wrote:

> 

On Nov 14, 2017, at 7:24 PM, Ed Sharpe via cctalk  wrote:
> 
> try 9121 drives!!!. ed!

No, thanks. I'd like a 9122C drive.


-- 
Mark J. Blair, NF6X 
http://www.nf6x.net/

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

[Ed Sharpe via cctalk]

there was also a hard drive with the local density floppy in it too 

Sent from AOL Mobile Mail

On Tuesday, November 14, 2017 Ed Sharpe via cctalk  
wrote:
try 9121 drives!!!. ed!

Sent from AOL Mobile Mail

On Tuesday, November 14, 2017 Mark J. Blair via cctalk  
wrote:

> 

On Nov 14, 2017, at 5:24 PM, william degnan  wrote:
> 
> Those drives are 720 each 3.5".

No, the 9122C model has two 1.44M drives. HP made several earlier 3.5" drive 
units with either 360k or 720k drive capacities.

I don't have a compatible IEEE-488 card for use with the HPDrive software. I'm 
curious about the open source hp85disk project, and might build hardware to 
work with it sometime. In any case, I'm interested in getting a 9122C drive.


-- 
Mark J. Blair, NF6X 
http://www.nf6x.net/

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

[Mark J. Blair via cctalk]

> On Nov 14, 2017, at 7:24 PM, Ed Sharpe via cctalk  
> wrote:
> 
> try 9121 drives!!!. ed!

No, thanks. I'd like a 9122C drive.


-- 
Mark J. Blair, NF6X 
http://www.nf6x.net/

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

[Ed Sharpe via cctalk]

try 9121 drives!!!. ed!

Sent from AOL Mobile Mail

On Tuesday, November 14, 2017 Mark J. Blair via cctalk  
wrote:

> 

On Nov 14, 2017, at 5:24 PM, william degnan  wrote:
> 
> Those drives are 720 each 3.5".

No, the 9122C model has two 1.44M drives. HP made several earlier 3.5" drive 
units with either 360k or 720k drive capacities.

I don't have a compatible IEEE-488 card for use with the HPDrive software. I'm 
curious about the open source hp85disk project, and might build hardware to 
work with it sometime. In any case, I'm interested in getting a 9122C drive.


-- 
Mark J. Blair, NF6X 
http://www.nf6x.net/

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

[Mark J. Blair via cctalk]

> On Nov 14, 2017, at 6:35 PM, Paul Berger via cctalk  
> wrote:
> 
> Well I do have a surplus 9122C however only one drive works and I am on the 
> other side of the continent.

Hmm, I'll consider yours if a more workinger one doesn't appear. That 
locational thing can be solved if you're willing to pack and ship. Do you have 
any idea what might be wrong with the second drive?


-- 
Mark J. Blair, NF6X 
http://www.nf6x.net/

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

[Paul Berger via cctalk]

Well I do have a surplus 9122C however only one drive works and I am on 
the other side of the continent.


Paul.


On 2017-11-14 10:16 PM, Mark J. Blair via cctalk wrote:

On Nov 14, 2017, at 5:24 PM, william degnan  wrote:

Those drives are 720 each 3.5".

No, the 9122C model has two 1.44M drives. HP made several earlier 3.5" drive 
units with either 360k or 720k drive capacities.

I don't have a compatible IEEE-488 card for use with the HPDrive software. I'm 
curious about the open source hp85disk project, and might build hardware to 
work with it sometime. In any case, I'm interested in getting a 9122C drive.

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

[Mark J. Blair via cctalk]

> On Nov 14, 2017, at 5:24 PM, william degnan  wrote:
> 
> Those drives are 720 each 3.5".

No, the 9122C model has two 1.44M drives. HP made several earlier 3.5" drive 
units with either 360k or 720k drive capacities.

I don't have a compatible IEEE-488 card for use with the HPDrive software. I'm 
curious about the open source hp85disk project, and might build hardware to 
work with it sometime. In any case, I'm interested in getting a 9122C drive.


-- 
Mark J. Blair, NF6X 
http://www.nf6x.net/

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

[Paul Berger via cctalk]

If your old IBM PC IEEE 488 card is one that is compatible with HPDrive 
http://hp9845.net/9845/projects/hpdrive/ you can use it to emulate a 
wide variety of HPIB storage several of which are compatible with the 80 
series machines.  I am using the Linux version on a Pentium II based 
industrial computer with ISA National Instruments cards and it out 
performs a real 9135C by quite a bit.


Paul.

On 2017-11-14 9:24 PM, william degnan via cctalk wrote:

Can you use one of those with the old IBM PC IEEE interface card?.  Has
this been covered here? I did not check but I guess the answer would be
maybe.  Those drives are 720 each 3.5".
Bill

On Tue, Nov 14, 2017 at 6:56 PM, Mark J. Blair via cctalk <
cctalk@classiccmp.org> wrote:


I just got my HP-85 working for the first time over the weekend (except
for its tape drive, which is still a work in progress). I'd like to acquire
some accessories for it:

1) HP 82903A 16k RAM module

2) HP 9122C dual 1.44M 3.2" floppy diskette drive

Do any of y'all have either of those items available for swap or sale? I'm
located in southern California.

Those two items are at the top of my HP-85 want list, but I might also be
interested in other related bits such as the 82940A GPIO Interface, other
compatible HPIB mass storage, etc.

--
Mark J. Blair, NF6X 
http://www.nf6x.net/

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

[william degnan via cctalk]

Can you use one of those with the old IBM PC IEEE interface card?.  Has
this been covered here? I did not check but I guess the answer would be
maybe.  Those drives are 720 each 3.5".
Bill

On Tue, Nov 14, 2017 at 6:56 PM, Mark J. Blair via cctalk <
cctalk@classiccmp.org> wrote:

> I just got my HP-85 working for the first time over the weekend (except
> for its tape drive, which is still a work in progress). I'd like to acquire
> some accessories for it:
>
> 1) HP 82903A 16k RAM module
>
> 2) HP 9122C dual 1.44M 3.2" floppy diskette drive
>
> Do any of y'all have either of those items available for swap or sale? I'm
> located in southern California.
>
> Those two items are at the top of my HP-85 want list, but I might also be
> interested in other related bits such as the 82940A GPIO Interface, other
> compatible HPIB mass storage, etc.
>
> --
> Mark J. Blair, NF6X 
> http://www.nf6x.net/
>
>