You're watching a kit consisting of the two EPROMs with the last OS for the Korg 01/W. If you're watching this, you probably don't need any extra info. The kit is suitable for 01/W, 01/W fd, 01/W pro and 01/W proX

If you do need help or info, please contact. I can share instructions on how to replace and the new features over your older OS. I'm now offering a CR2032 battery with the EPROM kit.

Kit contains:

1 EPROM 27C2001 IC25 part 912162

1 EPROM 27C2001 IC26 part 912262

1 CR2032 lithium battery

ALL MY EPROMs have a UV proof aluminium sticker and I only sell EPROMs of synths that I actually own, properly tested.

How to see your ROM version number

1. Turn off power 
2. Press and hold the RESET button (on the front panel).
3. Turn the power on.
4. Continue pressing RESET while watching the display closely.

You will see the usual "Korg 01/W Music Workstation" ad. After 2 or 3 seconds the ROM information will appear on the left edge of the display. You will see a date on one line and the ROM number beneath that. Read quickly because this appears for less than 2 seconds. The latest ROM will show:

Jun.01.1992
ROM:#62


I have new EPROM kits for many other synths like Elka, Roland, Yamaha, Ensoniq and Kurzweil. Contact if you need something.

These are NEW products, not new old stock. I have sliding pots for most vintage gear, including most Korg, Yamaha and Kurzweil. Some rotary for older Moog (Micromoog) and Transcendent 2000. Also some switches and some SSM and Curtis (CEM) chips. I will be selling all these in the next few weeks. Contact if you are looking for something. I repair (and collect) synthesizers since 1992.

I will send worldwide (tracked) for free. I'll ship same day or next, depending on payment hour.

SHIPPED FROM EUROPE