Hello Folks,
this is mainly intended as "googlebait", as I have no way currently to publish them.
If anyone wants a service manual for SysTron Donner 6153 and Iwatsu DS-6121, send me an email to tamhan at tamoggemon point com. This is a permanent adress which I have used since 2004, and will continue to use for years to come. As for the Unigor 6e, I have a source selling it for a very humane fee (10EUR or so): if that source ever dies, I will also start to distribute it for free.
All the best
Tam