Hi, Measure the EM voltage while it is connected to the tube with a high voltage probe. If your measurement agrees with the EM voltage on the status display, and it's between 1500 to 2400VDC then the EM supply is OK. Corby Dawson ____________________________________________________________ Best Weight Loss Program - Click Here! http://thirdpartyoffers.juno.com/TGL2141/fc/BLSrjpTFoYfEiFjPy3fhhQrgb3wPkxTiDbx6UtGnYPn0IwIzlJit219MWYI/

Corby, out of curiosity, how many stages is the EM or is it like a Chaneltron and a distributed EM? Is there a chain of Dynode resistors? I don't have a Cs and am just curious. Thanks, -John ========== > Hi, > > Measure the EM voltage while it is connected to the tube with a high > voltage probe. > > If your measurement agrees with the EM voltage on the status display, and > it's between 1500 to 2400VDC then the EM supply is OK. > > Corby Dawson