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Tektronix 492 First Mixer

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Mixer Diode Failure

Tektronix 492

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I bought a Tek 492 on eBay. This is a 50kHz-18GHz spectrum analyzer which was made by Tektronix in the early 1980's. There were a few major changes which can be distinguished by serial number. I have a mid-model (41000) unit made in 1981. Read more »

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