[sdiy] Replacements for japanese transistors

[Joachim Backhaus]

Hi,

does anyone know replacements for the following japanese transistors:
- 2SC-945
- 2SC-1583
- 2SC-644
- 2SC-1685S
- 2SA-733
- 2SA-564A
- 2SA-30A (O / RG)

I have made a web search to find datasheets for this
transistors but I didn't find one.
These types are used in the Korg MS series.

Thanx in advance
Joachim