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R3, R21, R27, R28 R4, R6, R7 | 2 | 4.7k | Resistor | | | | | D3, D4, D5, D8, D9, D10 | 8 | 1N4148 | 100V 0.15A standard switching diode, DO-35 Small Signal NPN Transistor, TO-92"/> Quad operational amplifier, DIP-14"/> if(preg_match("@.*()@", $article['content'], $matches)){ if (preg_match("@.*(

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