BC547 TRANSISTOR PIN CONFIGURATION

BC547 TRANSISTOR PIN CONFIGURATION

mig welding circuit diagram

mig welding circuit diagram arc welding circuit diagram welding circuits

simple wireless fm transmitter circuit diagram

simple wireless fm transmitter circuit diagram

simple microphone circuit diagram

simple microphone circuit diagram

stereo fm wireless transmitter circuit diagram

stereo fm wireless transmitter circuit diagram

free circuit diagrams

source : http://freecircuitdiagram.com

ne 555 ic internal diagram

led flasher from bc547

led flasher from bc547

temperature regulator circuit

temperature regulator circuit

wireless servo control circuit diagram

wireless servo control circuit diagram

infrared detector circuit diagram using bc557

infrared detector circuit diagram using bc557

bc557 transistor circuits

fire alarm circuit using ne555

fire alarm circuit diagram

ne555 circuits

alarm circuits

wireless microphone circuit diagram

wireless microphone circuit diagram,wireless circuit diagram

HT12E encoder rf wireless data transfer

HT12E encoder rf wireless data transfer

rf transmitter circuit diagram

data transfer circuit

4 bit transfer

transmitter using four transister

http://www.geocities.com/Eureka/Park/5323

four transister transmitter

sine wave transmitter

4 transistor

ne 555 circuits - astable circuit

ne555 circuits, astable multivibrator circuits, ne 555 ic , hobby circuits with ne555

electronic buzzer with ne55 ic

electronic buzzer circuit diagram with ne 555 ic

Make a power board and control board

Get/Make a power board and control board.

You are going to need a control board and etched power board. The power board needs to be at least 3 ounce copper. Ebay is a good place to look for heavy cheap copper clad PCB. You could print this picture and press it onto a piece of heavy blank PCB, and etch it with a dremel if you have a very steady hand:
http://ecomodder.com/wiki/index.php/Open_ReVolt/Fab_Files

Picture 2 and 3 below is an example of an early power board I made with a Dremel.

You can get a control board from me or you can make the control board in your favorite PCB layout software using the schematic here:
http://home.cogeco.ca/~tkooistra/Cougar_Controller_Rev2C_Schematic.pdf
And here are some pictures of the PCB layers:
http://home.cogeco.ca/~tkooistra/bottom_layer_rev2C.pdf