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HP 355C VHF Attenuator

David Hopkins All Messages By This Member #553 Gentlemen, I just received a 355C attenuator I won on ebay. When put to the test the attenuation is all over the place. Traced the faults to two of the micro switches. When closed the contact resistances varies from several ohms to open circuit depending on the number of times I rock the switch. I don't have any documentation on the unit so can't quote the part numbers. One most likely could not afford the genuine HP part anyway. Does any one know of a replacement part for these micro switches? Thanks David David Hopkins (VK4ZF) Queensland AUSTRALIA davhop@... S 27, 22.294 E153, 11.008
regman10 All Messages By This Member #554 开云体育 Why not try DeOxit and Pro Gold first? toggle quoted message Show quoted text -----Original Message----- From: David Hopkins [mailto:davhop@...] Sent: Friday, October 22, 2004 12:48 AM To: hp_agilent_equipment@... Subject: [hp_agilent_equipment] HP 355C VHF Attenuator Gentlemen, I just received a 355C attenuator I won on ebay. When put to the test the attenuation is all over the place. Traced the faults to two of the micro switches. When closed the contact resistances varies from several ohms to open circuit depending on the number of times I rock the switch. I don't have any documentation on the unit so can't quote the part numbers. One most likely could not afford the genuine HP part anyway. Does any one know of a replacement part for these micro switches? Thanks David David Hopkins (VK4ZF) Queensland AUSTRALIA davhop@... S 27, 22.294? E153, 11.008
Dan Tulloss #555 开云体育 ? -----Original Message----- From: Gary Allsebrook [mailto:regman10@...] Sent: Friday, October 22, 2004 2:17 AM To: hp_agilent_equipment@... Subject: RE: [hp_agilent_equipment] HP 355C VHF Attenuator Why not try DeOxit and Pro Gold first? -----Original Message----- From: David Hopkins [mailto:davhop@...] Sent: Friday, October 22, 2004 12:48 AM To: hp_agilent_equipment@... Subject: [hp_agilent_equipment] HP 355C VHF Attenuator Gentlemen, I just received a 355C attenuator I won on ebay. When put to the test the attenuation is all over the place. Traced the faults to two of the micro switches. When closed the contact resistances varies from several ohms to open circuit depending on the number of times I rock the switch. I don't have any documentation on the unit so can't quote the part numbers. One most likely could not afford the genuine HP part anyway. Does any one know of a replacement part for these micro switches? Thanks David David Hopkins (VK4ZF) Queensland AUSTRALIA davhop@... S 27, 22.294? E153, 11.008

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