    Partlist for the  Microcontroller bases DC power supply
    -------------------------------------------------------

    Parts for main board:
    =====================
    Capacitors:
    C1       27pf
    C2       27pf
    C3       10uF
    C4       10nF
    C10      10nF
    C11      1nF
    C12      10nF
    C13      100p
    C14      100p
    C18      0.1uF
    C20      0.1uF
    C21      0.1uF

    Biased Capacitors (16V unless otherwise stated):
    C15      1000uF, 25V
    C16      100uF
    C17      470uF, 25V
    C5       1uF
    C6       1uF
    C7       1uF
    C8       1uf
    C9       10uF
    C19      10uF

    Semiconductors:
    D1       4.3V ZENER-DIODE
    Z-DIODE  4.7V ZENER-DIODE
    D2       1N4148
    D3       1N4148
    D4       1N4148
    D7       1N4148
    D5       1N4001
    D9       1N4001

    IC1      AT90S4433P
    IC2      MAX232
    IC3      7805 Voltage regulator
    IC4      TL081P or TL071
    IC6      TL082P or TL072
    T1       BC547   transistor-npn
    T3       BD379,  TO126  transistor-npn + small aluminium metal sheet
                            for cooling (2 x 4 cm is sufficient)
    T4       BC557   transistor-pnp

    LCD display 2 lines with 16 or 20 characters, HD44780 compatible.

    LED red
    LED green
    Q1       4.0MHz  crystal

    Resistors:
    R24    100
    R41    100
    R10    10k
    R14    10K
    R20    10k
    R21    10k
    R25    10K
    R9     10k
    R4     1.8k
    R40    1.8k
    R19    1k
    R7     1k
    R8     1k
    R17    1M
    R34    1M
    R12    220
    R23    2.2k
    R28    22k
    R30    22k
    R6     22k
    R15    27k
    R26    2.7k
    R32    2.7K
    R1     470
    R11    470
    R13    470
    R3     470
    R16    47k
    R18    4.7K
    R2     47k
    R22    4.7k
    R27    4.7k
    R29    4.7k
    R31    4.7k
    R39    47k
    R5     4.7k
    R38    33k(if Imax=3A), 120K(if Imax=2.2A)=> depends on
           the transformer used for the power part.

    Mechanical parts:
    Mini stripe connectors for the programmer cable.
    Bannana connectors
    power connector
    RS232 connector (female)
    7 small push buttons
    power on/off switch

    Transformer 9V, 100mA

    IC sockets:
    2 x 8pin
    1 x 16 pin
    2 x 14 pin (or 1 x 28 pin 7.5mm, for atmel cpu)

    Parts for power part:
    =====================

    option 1)
    0-16V Imax=2.2A
    -> transformer 15V 2.5A
    option 2)
    0-24V Imax=2.2A
    -> transformer 24V 2.5A
    option 3)
    0-30V Imax=3A
    -> transformer 30V 3A

    C1       10uF, 63V
    C2       4700uF, 63V
    C3       0.1uF
    Diodes: 6 x 1N5400 or SB350
    R1       6.8k
    R24      5.6k
    T1, T2:  2N3055 or BD745 or BD743
             (for option 3 take 2N3055, for all
             others take any of the 3 transistors)
    Note: make sure that the power transistors have a current amplification
    factor (known as hfe) of 30 or higher. Modern multimeters can measure the
    hfe. It's a good idea to take such a multimeter and 3 cables with you to
    the shop and measure the hfe before you buy the transistors.

    R25   8 x 2.2 Ohm 1/4W
    R18   4 x 1 Ohm 1/4W
    R19   4 x 1 Ohm 1/4W

    Very big aluminium cooler, about 1.5 K/W