Subject: [SLR-Mail] No.2252: Re: MLRO down
From: johann eckl <johann.eckl@bkg.bund.de>

Author: Johann Eckl

Dear Pippo,

as you might already know we also had a breakdown of our PMT-MCP210 this 
year. The device worked fine since 2010. However, after slightly 
increasing the bias voltage (from -4600V to -4900V) in 2014 the device 
got damaged after a short periode of time. As far as i can remember 
there is also a current limitation during switch-on time. Unfortuately, 
i can not remember the specified value. Our power-supply is limited to 
220µA.

Best regards from Wettzell,
Johann