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Description

6530 to 6532 (RRIOT to RIOT) adapter for IEEE disk drives

Tested and working in a SFD 1001 floppy drive.

This project is a remake of Ruud Baltissen's 6530 Replacement. http://www.baltissen.org/newhtm/6530repl.htm Please check Ruud's site for schematic details and circuit theory.

The 6530 RRIOT (Rom Ram IO Timer) is used in many of Commodore's IEEE-488 disk drives, but replacement parts are rare & expensive enough to be considered unobtainable. So this daughter board allows a more available 6532 RIOT (RAM IO Timer) to be used in its place.

Parts:

6532 (MOS, Rockwell etc) Qty 1

74LS02. Qty 1

100nF decoupling capacitor Qty 2

EPROM (2716, 2732 etc) Qty 1

40 Pin DIP header (turned pin kind) Qty 1

IC Sockets as required

Build video: https://youtu.be/NEtBfd20XIg

Download Gerbers

Oct 03,2022

1,714 views

6530 to 6532 (RRIOT to RIOT) adapter for IEEE disk drives

2 Layers PCB 120 x 70 mm FR-4, 1.6 mm, 1, HASL with lead, Purple Solder Mask, White silkscreen

Enables the use of a 6532 + EPROM instead of an (unobtainable) 6530 in Commodore IEEE disk drives.

1714

Published: Oct 03,2022

Standard PCB

Download Gerber file 19

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