R: 8 "disc geometry

2021-02-10 Thread Enrico email.it via cctalk
ll see if I can help.. On Wed, Feb 10, 2021 at 7:35 AM Enrico email.it via cctalk < cctalk@classiccmp.org> wrote: > Hi at all. I have few questions on how the geometry is calculated. > > > 1) I would like to understand. this table represents an 3740 IBM standard > disk >

8 "disc geometry

2021-02-10 Thread Enrico email.it via cctalk
Hi at all. I have few questions on how the geometry is calculated. 1) I would like to understand. this table represents an 3740 IBM standard disk D: Drive Characteristics 1944: 128 Byte Record Capacity 243: Kilobyte Drive Capacity 64: 32 Byte Directory Entries 64: Checked Directory Entries 128:

R: Winchester SA1004 file recovering

2021-02-04 Thread Enrico email.it via cctalk
I wish apologize me. the work was done by a dear friend and I had mistakenly understood that he had used the Fluxengine card instead he used this card http://www.pdp8online.com/mfm/ with add-on daughter card interfacing with the SASI controller SA-1403. Since, despite repeated readings, we are not

R: Winchester SA1004 file recovering

2021-02-03 Thread Enrico email.it via cctalk
It's a bit very expensive to shipping a SA-1000 from U.S. to Italy almost over than 200 USD -Messaggio originale- Da: cctech [mailto:cctech-boun...@classiccmp.org] Per conto di jim stephens via cctech Inviato: mercoledì 3 febbraio 2021 12:18 A: Enrico email.it via cctalk Og

R: Winchester SA1004 file recovering

2021-02-03 Thread Enrico email.it via cctalk
Correct addess of the video test: https://www.dropbox.com/s/d9iacfgrnexso3o/GP%20T20%20con%20HD%20banco%20prov a.mp4?dl=0 The email cuts the link address to the video file. please join the first with the second piece and paste it in your browser. Enrico

Winchester SA1004 file recovering

2021-02-03 Thread Enrico email.it via cctalk
Hello everyone, in Italy in 1981 there was an explosion in creating new machines following the introduction of microprocessors. I have several "General Processor T-Model" machines that used CP / M 2.2 operating system. Here you can see the photos of the 1st acquisition https://www.vintagesbc.i

R: R: Floppy disk: one drive per face

2020-11-06 Thread Enrico email.it via cctalk
on the second / B side of the disk.! " Enrico -Messaggio originale- Da: cctalk [mailto:cctalk-boun...@classiccmp.org] Per conto di Fred Cisin via cctalk Inviato: venerdì 6 novembre 2020 20:41 A: General Discussion: On-Topic and Off-Topic Posts Oggetto: Re: R: Floppy disk: one drive per fa

R: Floppy disk: one drive per face

2020-11-06 Thread Enrico email.it via cctalk
So this for to read 1st face A: BEGIN MUP1 Mupid Seite 1 - SSSD 96 tpi 5.25" DENSITY FM ,LOW CYLINDERS 80 SIDES 1 SECTORS 10,256 SIDE1 0 0,2,4,6,8,1,3,5,7,9 BSH 4 BLM 15 EXM 1 DSM 96 DRM 127 AL0 0C0H AL1 0 OFS 3 END And this for to read the other side B: BEGIN MUP2 Mupid Seite 2 - SSSD 96 tpi

R: Floppy disk: one drive per face

2020-11-05 Thread Enrico email.it via cctalk
lk Inviato: giovedì 5 novembre 2020 22:50 A: General Discussion: On-Topic and Off-Topic Posts Oggetto: Re: Floppy disk: one drive per face On Thu, 5 Nov 2020, Enrico email.it via cctalk wrote: > We are trying to read some floppy disk used on a 1981 Italian Z80 machine > with CP / M. > The

Floppy disk: one drive per face

2020-11-05 Thread Enrico email.it via cctalk
We are trying to read some floppy disk used on a 1981 Italian Z80 machine with CP / M. The problem is that the firmware selects face A of the floppy as DRIVE A and face B of the same floppy as Drive B. We saved an image with IMD and we know that the geometry of face A is IBM 3740 26x128x77 tr

R: Basf 6104 Assy 81118 jumper named Bx

2020-10-18 Thread Enrico email.it via cctalk
nrico email.it via cctalk Oggetto: Re: Basf 6104 Assy 8118 jumper named Bx I sent you the manual, hopefully it will help. Michael Enrico email.it via cctalk wrote: > Hi at all, > I was looking for the BASF 6104 drive manual. > > on internet I find the one related to ASSY 81098 (where

Basf 6104 Assy 8118 jumper named Bx

2020-10-18 Thread Enrico email.it via cctalk
Hi at all, I was looking for the BASF 6104 drive manual. on internet I find the one related to ASSY 81098 (where the jumpers have the name JJx) https://www.dropbox.com/s/jtni6hk7gqbr5fk/BASF%206104%20Assy%2081098%20jumpe r%20JJx.jpg?dl=0 while instead I am looking for the one related to ASSY 811