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Re: 50 ohm thermocouples was RE: [HP-Agilent-Keysight-equipment] Issue with homemade diode power sensor for HP meters


 

Hi

What are frequently called RF thermocouples are in fact three or four terminal devices with a heating element (50 Ohm or 75 Ohm resistance) with an embedded thermocouple.

73 George G6HIG


On Tuesday, November 20, 2018 12:42 PM, Glenn Little <glennmaillist@...> wrote:


Are these thermocouples or thermistors?

These are different.

Glenn
WB4UIV

On 11/19/2018 11:45 PM, John E. Burgar wrote:
General Microwave used to make thinfilm 50 ohm thermocouples for their power meter sensors. I don’t know if they are in business any more. Regards, John Burgar
?
From: [email protected] [mailto:[email protected]] On Behalf Of RFI-EMI-GUY
Sent: Monday, November 19, 2018 1:42 PM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Issue with homemade diode power sensor for HP meters
?
Is there any other company on the planet who produces 50 OHM thermocouples? It seems odd that such a thing is unobtainable.

-- 
-----------------------------------------------------------------------
Glenn Little                ARRL Technical Specialist   QCWA  LM 28417
Amateur Callsign:  WB4UIV            wb4uiv@...    AMSAT LM 2178
QTH:  Goose Creek, SC USA (EM92xx)  USSVI LM   NRA LM   SBE ARRL TAPR
"It is not the class of license that the Amateur holds but the class
of the Amateur that holds the license" 


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