Ramsey Electronics AM25 Manual de Instruções descarregar pdf (Página 9)

AR1 • 9

PARTS LIST

CAPACITORS

 2 3.9 pF ceramic capacitor (C3,C5)

 1 10 pF ceramic capacitor (C11)

 2 27 pF ceramic capacitor(C12,C14)

 3 82 pF ceramic capacitor (C2,C4,C6)

 5 .001 µF disc capacitor (marked .001 or 102) (C1,7,8,13,16)

 6 .01 µF disc capacitor (marked .01 or 103 or 10nf) (C9,17,19,20,28,30)

 2 .1 µF disc capacitor (marked .1 or 104) (C23,C24)

 1 .47 µF electrolytic capacitor (C22)

 6 4.7 to 10 µF electrolytic capacitor (C10,15,21,25,26,31)

 3 100 to 220 µF electrolytic capacitor (C18,27,29)

FIXED RESISTORS

 2 270 ohm [red-violet-brown] (R6,R28)

 6 1K ohm [brown-black-red] (R5,7,11,18,25,27)

 4 10K ohm [brown-black-orange] (R8,12,17,23)

 1 22K ohm [red-red-orange] (R26)

 2 33K ohm [orange-orange-orange](R13,R22)

 7 47K ohm [yellow-violet-orange](R4,9,15,16,20,21,24)

 1 100K ohm [brown-black-yellow](R19)

 2 1 megohm [brown-black-green] (R10,R14)

SEMICONDUCTORS

 1 2SC2498 or 2SC2570A NPN UHF transistor (Q1)

 1 2N3904 NPN transistor (Q2)

 1 SA602 8pin IC (U1)

 1 MC1350 8pin IC (U2)

 1 LM324 14pin IC (U3)

 1 LM386 8pin IC (U4)

 1 BB505 varactor diode (marked BB505. Orange body with black band) (D1)

 1 1N270 germanium diode (clear body with red-violet-black stripes) (D2)

 1 1N4148 silicon diode (tiny clear body with black band) (D3)

INDUCTORS AND FILTERS

 3 pre-wound 2 turn wire coils (L1,L3,L5)

 2 .33 uH inductors (either wire wound with orange-orange-silver dots, or

resembling resistors with orange-orange-silver bands) (L2,L4)

 1 4-turn slug tuned coil (plastic body) (L6)

 1 Shielded 10.7 Mhz transformer (metal can body marked 421F122) (L7)

 1 10.7 Mhz ceramic filter (brown molded, 3 leads) (FL1)

CONTROLS, HARDWARE & MISCELLANEOUS

 3 10K potentiometers (R1,R2,R3)

 1 PC mount DPDT switch (S1)

 1 PC mount RCA jack (J1)

 1 subminiature phone jack (J2)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 23 24

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Ramsey Electronics AM25 Manual de Instruções Página 9

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