hello Amuseb , not interested , if you can do the upgrade yourself by bying the parts needed , or know somebody who can do it for you , you will save a lot of money , as I know that ARC France is asking crazy prices ( same as in Germany )You will need two resistors , a tubeholder ,a 6550 tube and some wiring .Time to install about half an hour .I got the upgrade as service in Holland , so i 'm able to help other ARC people .BTW I don 't sell parts .
Regards Hans ( Netherlands )
Regards Hans ( Netherlands )