Tag Archives: otpornici

Relej aktiviran tamom

Popis dijelova: Otpornici su 1/4 Watt, 5% R1, R3 = 1K5 R2 = 6K8 R4 = 3K3 Rx = 1K-10K (vidi tekst. Sam 3K3) P1 = 20K, trimer pot LDR1 = Optokopler Q1, Q2 = PN200, 2N3906, NTE159, 2N4403, itd. Q3 = 2N3053, 2N2219, 2N699,

Pulsirajuče kočiono svijetlo

Pulsirajuče kočiono svijetlo Poluvodiči: IC1, IC2 = LM555 ili NE555 Timer / oscilator SCR1 = NTE5402, ECG5402, RS # 276-1067, EC103A, MCR104, itd. Q1 = NTE197, ECG197, SK3083, TIP125, NTE262, ili ekvivalent D1, D2, D3 = 1N4148, 1N914, NTE519, ECG519, RS # 276-1122 D4, D5

Aktivna antena 1-20dB, 1-30 MHz

Aktivna antena 1-20dB, 1-30 MHz Lista dijelova i ostalih komponenti: Poluvodiči: Q1 = MPF102, JFET. (2N4416, NTE451, ECG451, etc.) Q2,Q3,Q4 = 2N3904, NPN transistor Otpornici: Svi otpornici su 5%, 1/4-watt R1 = 1 MegOhm R5 = 10K R2,R10 = 22 ohm R6,R9 = 1K R3,R11

Aktivna Antena AA-7 HF/VHF/UHF, 3-3000MHz

Aktivna Antena AA-7 HF/VHF/UHF, 3-3000MHz Lista dijelova i ostalih komponenti: Poluvodiči: Q1 = MFE201, SK3991, 3N201 (R2 not needed), or NTE454 N-Channel, dual-gate MOSFET, TO-72 (see text) Q2 = 2SC2570, NTE107. Silicon RF IF/Amp, NPN transistor (see text) Note: If you use the NTE107 as