Rough Layout of the New board


Parts List for new board:
QTY=========Description================
10			R1-R6,R8-R10		10K ohm resistor
2			R7,R11			2.2K ohm resistor
1			R12			100 ohm resistor
1			R13			2260 ohm, 1% resistor           
1			R14 			243 ohm, 1% resistor   
1			C1			470uf elec.
1			C2			1 uf tantalum
1			C3			10 uf tantalum
1			C4 			0.1uf
1			Right angle D-25 male header                 
1			Mini jack, right angle                     
2			Red LED                                    
1			WO5G or RB151 Full wave rectifier              
1			470 uf, 25V electrolytic capacitor        
1			LM 78L05ACZ Voltage regulator            
1			74LS06 Quad Inverter
1			LM317LZ Voltage Regulator     
2			PN2907 or equiv.
========  Parts for 40 pin chip socket  ===================
3			0.1 uf capacitor
1			40 Pin ZIF Socket
0 or 2			5 pin 0.1 male DIP Header
0 or 1			5 pin jumper,6 to 10