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5 Running light circuit diagram

5 Running light circuit diagram using TIC216D, CD4017, 2n2646, bc548

Touch switch circuit using Relay

ON off Touch switch circuit using 12v Relay R1 ……………. 220K R2 ……………. 47K R3 ……………. 4,7K R4 ……………. 10 M FET …………… 2N3819 TR1 …………… FCS9012 TR2 …………… FCS9013 Relay …………. DC – 12V

Sansui 15″ CTV Model: CTVB2B15-P powersupply problem,TV not switching on,replaced C4460, issue stil persists?

Raj asked: Hi, I have a Sansui 15″ color TV Model: CTVB2B15-P. It automatically switched off. When checked, fuse was blown out, I tried replacing the fuse, but it again blown out, so suspecting the problem with SMPS, I further checked and found that C4460 transistor (or STR) was short and replaced it, and now […]

35W Audio Amplifier Circuit using TDA1510A

35W Audio Amplifier Circuit using TDA1510A

DC power converter

DC power converter 12V DC to 120V DC The most obvious approach would be to make a DC power converter 12V DC to 120V DC, output at 50 or 60 Hz, but this requires a rather large and heavy transformer. So it’s better to use a high frequency, at least 25kHz, so a very small […]

Relay driver circuit diagram for application

Relay driver circuit diagram using 4584, BC549, BD139

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