===maintenance routine===


==montly==
replace crystal when lifetime >20%\\
replace materials

==yearly==
check glass isolator at electrodes\\
clean chamber walls

=== ordering parts ===

Chromium plated Tungsten rods\\
Kurt Lesker. Article number EVSCRW2. 4" long. 36 euro for 5 pieces.\\
2.02V at 78A will give ~1800°C

Tungsten boat, alumina coated\\
Kurt Lesker, article number EVS35BAOW. 0.89V at 130A will give ~1200°C

Tungsten boat\\
Kurt Lesker, article number EVS35010W. 2.26V at 207A will give ~1800°C

Au pellets 99.99%\\
Kurt Lesker. Article number EVMAU40SHOT. 50 euro per gram.

Au fine grenulates 99.99%\\
Thessco, roughly 38 euro a gram (based on current Au price)

=== ===