A lil' history ...
    This projects will describe a simple Servo Reverser that can be cheaply built using a 4001 NAND gate, 3 resistors, 3 capacitors and one variable potentiometer (see schematic below).
 

 

More coming soon... (i.e., PCB and building design notes...)

    Another interesting servo reverser project:   http://www.cliftech.com/pdf/Reverser.pdf

Design Criteria Summary:

1) Design a simple 1-IC Servo Reverser!  That simple!
2) Non-PIC project (this is too easy for a PIC any way!)
3) Interfaces between your receiver and servo
4) Small PCB and minimal components
5) Derives power from the connection to your receiver
6) Adjustable "centering" via variable resistor (potentiometer)

Parts & Tools List ...

1) One (1) 4001 CMOS IC (Quad Nand)
2) One (1) 1K Resistor
3) One (1) 10K Resistor
4) One (1) 47K Resistor
5) One (1) 100K Variable Resistor (Potentiometer)
6) One (1) .1uF Capacitor
6) One (1) 2.2uF Capacitor
7) One (1) 22uF Capacitor
8) Input/Output Servo Connectors (1 each, Male/Female)

Building Instructions...

The circuit is shown below (PCB is pending...) :

 

Testing and Operation Instructions...

1. More coming soon...

2. ...

Additional Notes...

Notes will be added here when possible...

   
 

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