Katsumi Electric Co. made keyers from 1960's to 2011.
The president of Katsumi Electric Co passed away in March, 2011, and it appears that the family has no interest in keeping the company going.
Apparently they have been unable to find someone to take it over, so we are no longer able to get Katsumi products.
Morse Express had been their agent in North America. The EK-130 was the last model they carried.
You are on your own (previous building experience helps in repair/troubleshooting)
-- Troubleshooting starts with having solid DC supply and regulation ... Then proceeding to the digital SN devices and circuitry.
We keep moving forward, opening new doors, and doing new things, because we're curious and curiosity keeps leading us down new paths. -- Walt Disney