Components
These are the components used for the circuit:
R3 = 330 Ohm (orange, orange, braun)
R4 = 12 Ohm (braun, red, black)
R5 = 1 kOhm (braun, black, red)
R6 = 1,5 kOhm (braun, green, red)
C2 = 4,7 uF 
D3 = 1n4148 
T1 = BC549 

Connectors
2 stereo plugs for the connection to the sound card.
1 sub-d connector for the com-port.
Dependant on the brand of the PMR, 1 or 2 connectors for the PMR.


