ZX Spectrum +3

Using most of ZX Spectrum interfaces needs upgrade of the edge bus to get compatibility. This can be done with the PL3FIX - small board with two diodes.

Power supply slot

DIN 6 Female on the back of computer
1,2 - +5V/2A
3,4 - +12V/700mA (video, FDD, RS232)
5 - -12V/50mA (RS232)
6 - GND

Files for download

pl3fix.zip 9.5kB (2005-03-17 05:34)

PL3FIX Eagle data files.

sed9420.pdf 263.2kB (2004-11-16 00:59)

CMOS Data Separator for FDD.

bpl3fix.jpg 83.7kB (2003-02-13 21:03)

PL3FIX top & bottom view.

plus3.zip 212.4kB (1999-04-05 23:35)

ZX Spectrum +3 Manual in text form.

Links to other pages

http://www.secarica.ro/html/zx_zone.html

Some upgrades by Cristian Secara.

See also

DSKHNDLR

Low level floppy and hard disk drivers for Z80.

TOS A.2

Timex Operating System A.2 for Timex FDD 3/3000.