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building a simple oscilloscope part 13 schematic
Posted by: radioam232
Video duration: 444 seconds
schematic and SAFETY WARNINGS (read this) for building the simple oscilloscope (and other scopes)
Related: cathode, db7-2, dg7-2, dn7-2, homebrew, nl11561, oscilloscope, philips, radioam232, ray, safety, schematic, tube, warnings
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how to test a bipolar transistor NPN or PNP
Posted by: radioam232
Video duration: 173 seconds
principles of testing a bipolar tran sistor by measuring the ratio between the base current and the C-E current
Related: base, bipolar, collector, current, emitter, nl11561, npn, pnp, radioam232, test, testing, transistor
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mosfet as switch
Posted by: radioam232
Video duration: 71 seconds
n-channel power mosfet SSH6N80 from Samsung used as switch for carlamp 12 V-3 A. Other N-Channel power mosfets also will work
Related: 12, 30, carlamp, fet, mosfet, nl11561, power, radioam232, ssh6n80, switch, transistor
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IF filter on 455 KHz part II (schematic)
Posted by: radioam232
Video duration: 199 seconds
The definite version of the homebrew 455 KHz IF filter.
Related: 455, filter, frequency, ham, homebrew, if, intermediate, khz, nl11561, radio, radioam232, shortwave, superheterodyne
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