Got today my Klystrons vom Telefunken. Lets wait whether i can make them work again :-)
It seems the anodes are still working; see below about 5 Volts; 0.38A and the tube gets warm. There good chances that the rest will work as well.
Next step is not now to build a power supply which yields:
- 6V / 500mA heating current
- 300V / 30mA accelearation field
- -80 ... -200V reflection field.