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Attenuator partnr 33321-60044 HP8713B

Question asked by ON4IMMDirk on Oct 2, 2010
Latest reply on Oct 2, 2010 by Dr_joel
I have a problem with the Attenuator from my HP8713B . i stay on the 20dB step instead of 0 db .How cant i tested it.I opened the attenuator and I see that the relais  have two positions . You cant moved manual. is it possibel that it is mechanical problem . Piston dry ??