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Switch Control Circuit using Relay

Switch Control Circuit using 3055, BC558, Relay

Touch Switch Circuit Diagram using IC TTL

Touch Switch Circuit Diagram using IC TTL 74HCT74, ZVNL110

Audio systems

7.5w Audio systems Circuit using AN7108 R1,4 …….. 330 ohm R2,5 …….. 5K6 R3,6 …….. 180K VR ………. 5K C1,3,5,7 …. 1nF C2,6 …….. 10uF/10V C4,8 …….. 22nF C9 ………. 100uF/10V C10,11,15 … 47uF/10V C16,17 …… 22nF IC1 ……… AN7108 7.5w Audio systems Circuit using AN7108

PreAmplifier circuit diagram using BC546, BC556

PreAmplifier circuit diagram using BC546, BC556 Preamplifier parts: P1 10K Linear Potentiometer P2 10K Log. Potentiometer R1,R2 68K 1/4W R3 680K 1/4W R4 220K 1/4W R5 33K 1/4W R6 2K2 1/4W R7 5K6 1/4W R8,R18 330R 1/4W R9 47K 1/4W R10 18K 1/4W R11 4K7 1/4W R12 1K 1/4W R13 1K5 1/4W R14,R15,R16 100K 1/4W […]

Phono preamp circuit

Good Phono preamp circuit using BD437, BD438

The high tones

The treble controls the high tones, middle the mid-range tones and bass controls The treble controls the high tones, middle the mid-range tones and bass controls

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