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Posts tagged 2N3439

hspd 12 piv circuit using 2N3439

hspd 12 piv circuit using 2N3439 hspd 12 piv circuit using 2N3439 R1 …………. 33K ohm R2 …………. 100 ohm VR …………. 1K ohm c1 …………. 50uF – 450V TR1 ………… 2N3439 TR2 ………… 2N3439 T1 Transformer Pri: 110 – 220V Sec: 0 – 220V 5mA

Latching Switch Circuit

Latching Switch Circuit using CD74C14, CD6069, PMV65XP

LM555 Electronics Schematic Diagram Time Constant Control part 16

LM555 Electronics Schematic Diagram Time Constant Control part 16

Simple Police Car Siren

Simple Police Car Siren using 9013, 9012 R1 ………….. 27K ohm R2 ………….. 68K ohm R3 ………….. 56K ohm R4 ………….. 470 ohm C1 ………….. 50uF – 12V C2 ………….. 0,018uF – 25V TR1 …………. FCS9013 TR2 …………. FCS9012 S1 ………….. Push Switch

Simple Ohmmeter Driver circuit

Simple Swr Avometer Driver circuit Synthetic Isolators, great for checking the SWR of antennas

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