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Audio Doorphone Intercom Circuits using 4093 and 4066

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

HOME INTERCOM and TELEPHONE SYSTEM using stk015

HOME INTERCOM and TELEPHONE SYSTEM using stk015 HOME INTERCOM and TELEPHONE SYSTEM using stk015 R1 ……….. 1K2 R2 ……….. 5K6 R3 ……….. 22K R4 ……….. 4K7 VR ……….. Pot 10K C1 ……….. 47nF C2 ……….. 100nF C3 ……….. 10uF/16V C4 ……….. 10nF C5 ……….. 47uF/25V C6 ……….. 470uF/35V C7 ……….. 1000uF/35V D1 ……….. 2A D2 […]

USB to LR35901 Converter Circuit for Multi Media

USB to LR35901 Converter board is a PIC microcontroller based device that receives a USB signal from a PC and converts the signal to an LR35901 output.  The output signal can be sent to any one of three serial ports.  Devices which may be connected to the ports include the ASI Inc. X-Y Stage, the […]

Alarm system circuit Diagram

Schematic Circuit Diagram Security Alarm system circuit Diagram using LM358, 4093B, 2N7000, TLC106C, MTP3055E, 1N4004, BC558, 1N5400 Security alarm system circuit Diagram using LM358, 4093B, 2N7000, TLC106C, MTP3055E, 1N4004, BC558, 1N5400

How The History of Logic PLC ?

When production requirements changed so did the control system. This becomes very expensive when the change is frequent. Since relays are mechanical devices they also have a limited lifetime which required strict adhesion to maintenance schedules. Troubleshooting was also quite tedious when so many relays are involved. Now picture a machine control panel that included […]

2SA1943 – 2SC5200 Schema and PCB Layout for Audio

2SA1943 – 2SC5200 Schema and PCB Layout for Audio

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