Скачать или смотреть HP 540B Transfer Oscillator 10MHz to 12GHz 1960 test teardown

amazing Hewlett Packard unit from about 1960 that can measure frequency from 10MHz to 12GHz (not kidding) it uses a harmonic mixer and zero beat methode, ofcourse you need to know about what frequency you expect to measure, else it will not work. this unit miss a 6C4/6135/EC90 tube in the osc section, funny it actually works without this tube :-)
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#teardown
#hewlettpackard
#vintage
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I use auto generated subs, I go thru them my self, but i am far from perfect at finding all errors, so if you find errors worth fixing, please comment (or PM) with the TIME in the video you saw the error, i will be happy to fix it. This also apply to the Danish version.
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