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Single transistor self-oscillating circuitry with NPN or PNP transistors ( Joule thief ) (High Voltage Engineering by MG Niasar) View |
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joule thief with two npn transistors (Magnetic Science ACR) View |
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High Impedance Joule Thief Electronics (JONOVID) View |
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2 transistor joule thief (bakupcpu) View |
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Joule thief circuit oscillating on 18 KHz or higher (explained in detail and more) (radiofun232) View |
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Joule Thief and DC booster (Chris's Workbench) View |
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Joule Thief - What's The Frequency, Kenneth (4K) (tsbrownie) View |
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Transistor NPN, PNP and some practical applications (DO IT YOURSELF) View |
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joule theif using S9014 or c9014 transister (Creative channel pro) View |
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Sloppy more or less always working 1 transistor oscillator that can work for HV etc. demo/schematic (radiofun232) View |