Roland TR-505 rom expansion kit that adds three additional sound banks to the machine.

The kit includes all the components needed for proper operation:

- 1 x PCB

- 1 x Pre-programmed ROM chip

- 2 x 14-pin female sockets

- 2 x 14-pin male headers

- 2 x 10kΩ resistors

- 1 x 100nF ceramic capacitor

- 2 x Toggle switches

- Wiring

In total, you will have access to four banks, including the original TR-505 sounds.

You can choose from the following sound banks:

- Akai XR10

- Linndrum V1 or V2

- Linndrum LM1

- Linndrum 9000

- Oberheim DMX

- Roland CR-78

- Roland TR-909

- Roland TR-808

- Roland TR-707

- Sequential Circuits Drumtraks

- Alesis HR-16

- Simmons (Clap Trap, SDS series)

Upon purchase, I will program the ROM chip with the three banks of your choice. The original TR-505 sound bank remains included, resulting in a total of four banks.

I will also provide a step-by-step installation and assembly guide in PDF format.

Installing the kit requires desoldering the IC11 chip and drilling holes in the casing for the two switches.

Feel free to contact me if you have any questions!