Building the KLyball D-13

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lowrybt1
Posts: 212
Joined: Sun Mar 08, 2015 3:42 pm
Location: New York State

Using the Klyball D-13 with C8PDF

Post by lowrybt1 »

If I use a D-13 with a C8P normally connected to 8” drives, can I connect and R/W to 5” drives without making any changes to the 505 board (which has been modified as usual for R/W operations at 250Khz)?

Thanks, Tom
C8PDF w. 48K, 2x 520 24K RAM boards and Glitchworks 64K board
OSI 567 Telephony board
Spare 8" drives
Klyball D-13
Klyball
Posts: 230
Joined: Tue Dec 09, 2014 12:53 am

Re: Building the KLyball D-13

Post by Klyball »

there are not enough sectors, i use 3.5 1.44 drives for the eight inch, you just need to make a slight mod to the drive, its in the thead
Replica 600 Rev D:8K,CEGMON
Replica 610 Rev B: 24k,MPI B-51 with Custom Data separator D-13
510 on the bench/replica 582 backplane/replica 470a /replica 555/original 570B/2 x Shugart 851
Ongoing : 630 ,620 ,510,542c,custom 590,SA1200,592,594,596,598
geowar1
Posts: 11
Joined: Sun Aug 22, 2021 5:00 am

Re: Building the KLyball D-13

Post by geowar1 »

Great thread! One quick question thou: The only software mods were to change the number of supported tracks. So how is the 2nd side accessed? If I followed everything correctly the 2nd sides just appear as a different drive? So A: is drive zero side zero, B: is drive zero side one, C: is drive one side zero and D: is drive one side one?
bxdanny
Posts: 311
Joined: Thu Apr 16, 2015 2:27 pm
Location: Bronx, NY USA

Re: Building the KLyball D-13

Post by bxdanny »

geowar1,

A: is drive 0, side 0, B: is drive 1, side 0, C: is drive 0, side 1, D: is drive 1, side 1.
No current OSI hardware
Former programmer for Dwo Quong Fok Lok Sow and Orion Software Associates
Former owner of C1P MF (original version) and C2-8P DF (502-based)
geowar1
Posts: 11
Joined: Sun Aug 22, 2021 5:00 am

Re: Building the KLyball D-13

Post by geowar1 »

The link to the parts list in the first post is broken.
Anyone got a BOM for the D-13?
geowar1
Posts: 11
Joined: Sun Aug 22, 2021 5:00 am

Re: Building the KLyball D-13

Post by geowar1 »

>>> The link to the parts list in the first post is broken. Anyone got a BOM for the D-13?

Never mind… a list was posted in this thread by lowrybt1 on Sat Nov 10, 2018 5:20 pm.
Dokken
Posts: 45
Joined: Tue Jul 05, 2022 10:47 am

Re: Building the KLyball D-13

Post by Dokken »

here's a schematic that should work with the latest version.
Attachments
SCH - OSI_Floppy_Data_Seperator_REV1.3.pdf
(200.53 KiB) Downloaded 310 times
geowar1
Posts: 11
Joined: Sun Aug 22, 2021 5:00 am

Re: Building the KLyball D-13

Post by geowar1 »

Following the schematic… where does Drive_Select-3 originate? Both the 5.25" and 8" interfaces use it but I can find where it comes from.
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