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Multiplexer Circuits / Scanner Circuits

Analog multiplexers help Test ISA bus IRQs & DRQs: 12/07/95 EDN-Design Ideas 

Astable Multivibrator #1:

Astable Multivibrator #2:

Cancel Multiplexed DAC's Output Error, And Add A Sign Bit : 06/10/02 Electronic Design - Ideas for Design  /  In some applications, like dataloggers, it's desirable to have many multiplexed analog outputs. As only a single output is active at once, a voltage-output digital-to-analog converter (DAC) and an analog multiplexer can do this. You can use this kind...  

CMOS Toggle Flip Flop with Relay(CD4013):

Data multiplexer adds cursor to LED Display Driver: 03/30/95 EDN-Design Ideas 

Discrete BiStable Flip Flop:

Discrete Set / Reset Flip Flop:

Independently Vary A Multivibrator's Duty Cycle And Frequency : 10/28/02 Electronic Design - Ideas for Design  / When testing the response of many pulse-width-modulated (PWM) systems, there's a need to independently vary a multivibrator's frequency and duty cycle. Such systems include dc motors, ultrasonic hydrophones, and piezo-ceramic transducers. The ...  

Low Cost RS232C multiplexer serves as multiport Adapter: 03/01/96 EDN-Design Ideas 

Mains Operated Christmas Star:

Maximum Voltage sorter uses Analog multiplexers: 09/29/94 EDN-Design Ideas 

Multiplexer Amplifiers form large, multiplane multiplexer structures: 12/26/02 EDN-Design Ideas  / The variety of video sources available to a home-video-switching system has grown from a few composite inputs to many multisignal sources. These sources include cable, HDTV, satellite dishes, VCR, DVD, video games in broadcast, and multi-PC or graphic KVM (keyboard-video-mouse) applications.

Multiplexer creates mixed signal Scope Input: 01/16/97  EDN-Design Ideas 

ScanMate Audio Activated recorded: your (Radio) scanner buddy! 

Serial Data Multiplexer:

Single Coax Carries Video, Power, & Channel Select Signals:

Soft On / Off Switch: Modern electronic equipment incorporates "push-to-on-push-to-off" switches that do not make the clicking noise as with old equipment. An example of this is the power button on an ATX computer cabinet. Here is a circuit that does the same. It can be used to turn on/off any electronic/electrical equipment that operates on any range of voltages. FAIR WARNING -- THIS SITE HAS ANNOYING POP UP ADS.

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