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Automotive 0v to 12v InPowered Indicator

Automotive 0v to 12v Electrical Voltage Indicator using 74HC04, 74HCT04

100v Power Supply circuit and 300W Audio Amplifier Circuit

100v Power Supply circuit and 300W Audio Amplifier Circuit

Vibration Control Switch Circuit

Vibration Control Switch Circuit using 4069UB

PRE AMP MIC

PRE AMP MIC 3 TR USING BC550C BC556 BC546 PRE AMP MIC 3 TR USING BC550C BC556 BC546 R1_____________ 1K5 R2_____________ 220K R3_____________ 18K R4_____________ 330R R5_____________ 39K R6_____________ 56R R7,R10_________ 10K R8_____________ 33K R9_____________ 150R R11____________ 6K8 R12,R13________ 100R R14____________ 100K C1_____________ 220nF 63V C2_____________ 220pF 63V C3_____________ 1nF 63V C4,C7__________ 47µF 50V C5,C6__________ […]

SCHEMATIC DIAGRAM Relay Driver Board Project

This article means to utilize your old PC to be come a simple controller. Many old PC like 8088 type, 8086, 80286, 80386, or even 80486 already become an obsolete systems. This board using 8-bits of LPT printer parallel data port (DP) to activate the relays. LPT printer parallel port also have 4-bits additional port […]

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