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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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building a simple oscilloscope part 15 schematic II Posted by: radioam232
Video duration: 218 seconds very simple oscilloscope horizontal amplifier and time base (max 100 Hz) Related: 7-2, amplifier, base, cathode, dn, horizontal, nl11561, oscilloscope, radioam232, ray, simple, time, tube |
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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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Old tube radio BC 728 from the US Army Posted by: radioam232
Video duration: 130 seconds portable radio from World War II (as I see it well), 8 kg, shortwave 2-6 MHz, schematic in the book "Das Surplus Handbuch" from Bernd Jacobi, part 1, Verlag fuer tech.literature Werner Conrad, Germany Related: 2-6, 728, army, bc, ham, mhz, nl11561, old, radio, radioam232, receiver, shortwave, us |
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homebrew radio receiver with tubes Posted by: radioam232
Video duration: 71 seconds radio with two vacuum tubes for frequencies between 1 and 1,6 MHz (music live from receiver) Related: ham, nl11561, radio, radioamateur, shortwave, tube, vintage |
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how to test a bipolar transistor NPN or PNP part 2 Posted by: radioam232
Video duration: 147 seconds testing bipolar transistors by putting them as unknown transistor in a flip flop schematic Related: base, bipolar, collector, emitter, nl11561, npn, pnp, radioam232, test, testing, transistor, transistors |
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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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oId tube radio - transmitter RT 3030 or GRC 3030 Posted by: radioam232
Video duration: 95 seconds RT 3030 or GRC 3030 radio-transmitter 2-12 MHz, built by Van der Heem, The Hague, Netherlands, for the Dutch Army, in the '50's. Related: 3030, der, grc, hague, ham, heem, nl11561, radio, radioam232, rt, shortwave, the, transmitter, van |
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transistor as switch Posted by: radioam232
Video duration: 73 seconds bipolair transistors (Darlington) used as switch, (fingertip switch) Related: bipolar, darlington, nl11561, radioam232, switch, transistor |
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shortwave radio receiver with self designed IF filters Posted by: radioam232
Video duration: 111 seconds homebrew radio receiver for 1-1.6 MHz and 6-7 MHz with warm sound reproduction Related: filter, ham, homebrew, if, nl11561, radio, radioamateur, shortwave |
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measuring inductance Posted by: radioam232
Video duration: 84 seconds measuring inductance from an unknown coil using an oscillator Related: coil, ham, inductance, nl11561, oscillator, radio, radioamateur, shortwave |
