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D.I.Y. TELETEXT DECODER

BOARD 3


Fig. 4. - The renumbered board three circuit.

Board Three - PARTS LIST

RESISTORS all 1/4 W 5%CAPACITORS
R301, 3445k6C3012n2 ceramic
R302, 303680RC302, 304, 308, 314, 33982p ceramic
R304, 307, 320-324, 3343k3C30356p ceramic
R3051k8C305, 341, 34227p ceramic
R306, 314, 316,  34310kC307, 315, 316,, 318-329100n polyester
R308820RC309, 310, 33433u 16V electrolytic
R309, 315, 336, 3411k0C31110u 25V electrolytic
R310220RC33118p ceramic
R311, 32568RC332, 337, 338, 340, 3436u8 25V tantalum
R312, 3184k7C335, 3361p8 ceramic
R313, 31756RNote C319-329 are decoupling components and are not shown on the circuit diagram.
R319470R 
R326, 331, 33210RSEMICONDUCTORS
R327, 330180RIC30174S04
R328, 335, 340100RIC30274S74
R329150RIC30374LS138
R33318kIC3047400
R3376k8IC305, 306, 3087408
R338, 3392k2IC3077486
R34247kIC3097474
 Q301, 304BC558
POTENTIOMETERQ302, 303, 305, 307BC548
RV301470R min. preset horizontalQ306BSX20
D301-3111N4148
 ZD301BZY88 / BZX70C5V6
VARIABLE CAPACITOR 
CV30122pMISCELLANEOUS
  X30117.73447 MHz
  MOD301UM1231 Astec
  PCB

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