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Posts tagged indicator

Digit Led Display

Digit LED Display for audio level indicator using 7414, 7493A, 1N4148, 5v Led display board for audio level indicator using 7414, 7493A, 1N4148, 5v

DUAL LED LEVEL METER DRIVER

5 DOT circuit for DUAL LED LEVEL METER DRIVER using KA2281 5 DOT circuit for DUAL LED LEVEL METER DRIVER using KA2281 5 DOT DUAL LED LEVEL METER DRIVER The KA2281 is a monolithic integrated circuit consisting of a 2-channel LED level meter driver which was disigned for use in stereo radio cassette tape recorders […]

Big Power Amplifier Circuit

Big Power Amplifier Circuit using IRF640, IRF9640, 2N5551, 2N5401, 2N2222A, BD139, 2N2907A

Audio Doorphone Intercom Circuits using 4093 and 4066

Audio Doorphone Intercom Circuits using 4093 and 4066 Audio Doorphone Intercom Circuits using 4093 and 4066

LEVEL METER DRIVER

7 DOT LEVEL METER DRIVER Audio circuit using KA2288 7 DOT LEVEL METER DRIVER circuit using KA2288 The KA2288 is a monolithic integrated circuit consisting of 7-dot LED level meter drives.  KA2288 employs a low noise comparator which provides 10dB lower noise in the LW, MW band than the previously mentioned LED drivers. FEATURES LED […]

dj audio equipment

dj audio equipment dj audio equipment circuit diagram Main Mixer Amplifier Module circuit diagram dj audio equipment Parts: P1,P2 100K P3 470K R1,R2,R3 12K 1/4W R4,R5 3K9 1/4W R6,R7 1K8 1/4W R8,R9 22K 1/4W R10 560R 1/4W R11 100K 1/4W R12 220R 1/4W C1 1uF 63V C2 47nF 63V C3,C5 4n7 63V C4 22nF 63V […]

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