Linux & PIC [PROGRAMMER HARDWARE]

PIC 16F84 "Tait style" programmer hardware

Here is the "Tait style" programmer shematic diagram,
and here is my PCB layout for this device.

Here is the component list:
R 1 kOhm ..... x1
R 4.7 kOhm ..... x2
R 10 kOhm ..... x6

C 100 nF ..... x5
C 10 uF ..... x1

LED ..... x1
1N4148 ..... x2
1N4001 ..... x1
any PNP ..... x2

IC 7407 ..... x1
IC 7812 ..... x1
IC 7805 ..... x1

25pol. D-sub connector ... x1