Author Topic: Inside a Tek CT-1/2 - Curious about high frequency current transformers  (Read 226 times)

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Offline ezalys

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Has anyone disassembled a tektronix CT-1 or CT-2? I'm curious what the actual current transformer looks like and how they got the bandwidth of the probe to be so wide. I'm curious if it's air-cored or uses some magnetic material in there. Curious about any insights as far as how you'd make a 1 GHz current probe even if you haven't seen inside these specific probes.
 

Online tautech

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Check out this great old book about Tek probe design:
https://www.davmar.org/TE/TekConcepts/TekProbeCircuits.pdf
P54 and on.
Avid Rabid Hobbyist & NZ Siglent Distributor
 

Offline ezalys

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Ooh this is an excellent reference. Of course, they don't seem to give away what the ferrite is made of :D
 

Online T3sl4co1l

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High frequency is determined by geometry; low frequency is usually determined by (drumroll please!).... nanocrystalline cores. :)

Tim
Seven Transistor Labs, LLC
Electronic Design, from Concept to Layout.
Need engineering assistance? Drop me a message!
 


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