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General Microwave N4240A , 4200 series TFT power heads

RFI-EMI-GUY All Messages By This Member #93020 Well I did some shopping at my local surplus house today and found a NOS 1980's vintage N4240A TFT power head along with a nice N420C to use with my model 460B so now I have a 10 mw head to go along with the 100 mw head I had. They appear to agree with each other at 999.99 MHz so all is good. That said, the 460B is an antique, so the prospect of finding a newer model meter to match my new N4240A head came to mind. From what I can tell, it works with a model 475B or 476. Neither of these are showing up on e-bay at the moment. The cable has an AMP 206485-1 9 pin concentric female connector. It is a more modern connector incompatble with the jack on the 460B. Can anyone advise what newer meters this power head will work with? What is the lineage of the GM brand? Are there compatible Marconi or other name power meters that superseded the Marconi?
nigel adams All Messages By This Member #93029 开云体育 The Marconi Power meters and heads became IFR, then Aeroflex and finally Cobham before they ceased entirely. The current owners of the residual business are no longer in that field of business. ? But note, these later meters (6950/6960/6970 series )used the ‘similar’ style heads to the HP/Agilent units. Please be aware I said similar – not the same… ? The earlier multipin larger heads were off the TFT style power meters and were marketed under the Sanders or Marconi Sanders naming, once Marconi acquired the Sanders business. ? You can pick them up at hamfests and rallies – dealers too, but pricey… ? Still quite good units. Regards ? Nigel ? toggle quoted message Show quoted text From: [email protected] [mailto:[email protected]] On Behalf Of RFI-EMI-GUY Sent: 02 December 2018 07:58 To: [email protected] Subject: [HP-Agilent-Keysight-equipment] General Microwave N4240A , 4200 series TFT power heads ? Well I did some shopping at my local surplus house today and found a NOS 1980's vintage N4240A TFT power head along with a nice N420C to use with my model 460B so now I have a 10 mw head to go along with the 100 mw head I had. They appear to agree with each other at 999.99 MHz so all is good. That said, the 460B is an antique, so the prospect of finding a newer model meter to match my new N4240A head came to mind. From what I can tell, it works with a model 475B or 476. Neither of these are showing up on e-bay at the moment. The cable has an AMP 206485-1 9 pin concentric female connector. It is a more modern connector incompatble with the jack on the 460B. Can anyone advise what newer meters this power head will work with? What is the lineage of the GM brand? Are there compatible Marconi or other name power meters that superseded the Marconi?

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